New Cam Chain Tensioner

 

Cam Chain Tensioners...Here is the Problem!

The above photos show an OEM Honda tensioner and an unidentified aftermarket tensioner. These photos were from an AHRMA vintage roadracer's bike (thanks Matt Esterline #237) and clearly show the problem. The OEM tensioner lasted approx. 3 weekend races and the aftermarket tensioner approx. 10 weekend races. These types of product malfunctions are exaggerated when racing is involved, but racing makes for a good test because these results happen in street bikes as well.

Note: Matt's bike is using an OEM stock cam chain tensioner rather than a manual tensioner that has been overadjusted.

 

 

Original Press Release (Just a reminder.)

These cam chain tensioners are designed to float and compensate for milled heads, thinner gaskets, worn/stretched cam chains and hard deceleration which destroys OEM tensioners. The arrows show how the sliders can move a few degrees to compensate for the above mentioned problems.

Features:

 Proven XPA 46 slider material.
 Floating/compensating design.
 No more than four chain links unsupported.
 Front slider is longer with a gentle curve.
 Stock length cam chains, peanut or straight
    side plates are fine.

Note: Fixed slider designs shift the pressure points upward and only make contact at the very top when thinner gaskets, milling and stretched chains.

 

 

 

This project presented several obstacles that needed the expertise of a world class machine shop in the great state of Texas. With a combination of 3D imaging, motor cut-a-ways and proven XPA-46 materials, no expense was spared. This floating/self compensating design and highly accurate machining processes surely makes this a candidate for product of the decade (we like saying that).

 

Done!!!

ENG-108     $349.00

 

 

 

 

 
Chains

 

Cryogenically Treated Tsubaki
Cam Chains

These Tsubaki cam chains have been the best available for years and years, now that they have been Cryogenically treated with this proven process, they are truly the best available. No stretching, no resetting cam timing, and there has never been a reported failure even without the cryo treatments.

A Cycle X exclusive product!

ENG-TSUBAKICRYO     $113.25

 

 
 
 

 

 

 

Camshafts

 

Most performance camshafts are considered to be a horsepower, torque and acceleration upgrade depending which camshaft is selected. These CX-11 and Hellcat #84 camshafts are two of the best and most powerful grinds on the market.

In stock!

 

This camshaft profile is one of the hardest hitting mid-range and excellent top-end camshafts designed for Honda CB750's.
Works great with 65mm bores and larger.
Higher compression ratios are recommended.
You vintage road racing people should try this cam!
 

INSTALLATION INFORMATION

ENGINE:  Honda CB750 F2 (75-76); CB750 K (69-78) SOHC 8v

 

INTAKE

EXHAUST

VALVE LASH (INCH):

.005"

.005"

VALVE LIFT (INCH):

0.385

0.330

DURATION: 290° 300°

DURATION @ .0.050":

264°

272°

LOBE CENTER:

107°

110°

 

INTAKE OPENS     25°     BEFORE TDC

EXHAUST OPENS     66°     BEFORE BDC

INTAKE CLOSES     59°     AFTER BDC

EXHAUST CLOSES     26°     AFTER TDC

VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT.

MAKE Honda CB750 SOHC
MODEL K model
YEAR 69-78 (69-76 K model valves)
CAMSHAFT CX-11
INTAKE VALVE SIZE 32mm standard.
EXHAUST VALVE SIZE 28mm standard.
LASH 0 lash for checking.
INTAKE SINK No sink. 1.700 valve stem protrusion.
EXHAUST SINK No sink. 1.700 valve stem protrusion.
VALVE TO VALVE CLEARANCE .060 Average
SPRINGS ENV-008. 65lbs 1.455 installed height. no shims.
80lbs with 1.395 installed height (.060 shims)
ENV-009. 85lbs 1. 455 installed height. no shims. Add shims if needed.
Bee-hive ENV-010K 1.380 installed height. 90-95lbs. Add shims if needed.
INSTALLED HEIGHT Check above.
VALVE STEM PROTRUSION 1.700. Intake and exhaust.
VALVE GUIDES High lift guides are needed with the CX-11
NOTES:

 

MAKE Honda CB750 SOHC
MODEL F2/F3 Supersport models
YEAR 77-78
CAMSHAFT CX-11
INTAKE VALVE SIZE 34mm standard.
EXHAUST VALVE SIZE 31mm standard.
LASH 0 lash for checking.
INTAKE SINK .015 sink
EXHAUST SINK .015 sink
VALVE TO VALVE CLEARANCE . Averages .050 with o lash
SPRINGS All above springs will work. Check pressures and specs for your needs.
   
VALVE STEM PROTRUSION 1.715
VALVE GUIDES Standard or High-lift guides are okay.
NOTES:
More specs coming soon.
Cam tower clearancing will be needed.

Additional tech info coming soon.

CX-11     $314.00

This "Hellcat" camshaft is the latest addition to our specialty performance camshaft options.
Made with a nice combination of old Honda CB750 camshaft thoughts and modern camshaft technology
thoughts and theory.
Big bore and higher compression recommended.


INSTALLATION INFORMATION

ENGINE:  Honda CB750 F2 (75-78) SOHC 8V; Honda CB750K (69-78) SOHC 8V

 

INTAKE

EXHAUST

VALVE LASH (INCH):

.005"

.006"

VALVE LIFT (INCH):

0.430

0.430

DURATION: 292° 292°

DURATION @ .0.050":

270°

270°

LOBE CENTER:

108°

110°

 

INTAKE OPENS     27°     BEFORE TDC

EXHAUST OPENS     65°     BEFORE BDC

INTAKE CLOSES     63°     AFTER BDC

EXHAUST CLOSES     25°     AFTER TDC

VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT.

MAKE Honda CB750 SOHC
MODEL K model
YEAR 69-78 (69-76 K model valves)
CAMSHAFT Hellcat
INTAKE VALVE SIZE 33.5mm oversize.
EXHAUST VALVE SIZE 28mm standard.
LASH 0 lash for checking.
INTAKE SINK  
EXHAUST SINK  
VALVE TO VALVE CLEARANCE  
SPRINGS  
INSTALLED HEIGHT  
VALVE STEM PROTRUSION  
VALVE GUIDES  
NOTES:
 

 

MAKE Honda CB750 SOHC
MODEL F2/F3 Supersport
YEAR 77-78
CAMSHAFT Hellcat
INTAKE VALVE SIZE 34mm
EXHAUST VALVE SIZE 31mm
LASH 0 lash for checking
INTAKE SINK .025
EXHAUST SINK .025
VALVE TO VALVE CLEARANCE Averages .055 with 0 lash
SPRINGS Check above specs and pressures and favor 85 to 90lbs or more with this camshaft.
   
VALVE STEM PROTRUSION 1.725
VALVE GUIDES Standard or high lift

OUT OF STOCK

 

 

 

 

Valves

 

Solid One Piece Stainless Steel Hard Chrome Stem Valves

Check out the high performance solid, one piece, stainless steel hard chrome valves. Stellite tipped and added machine swirl.
These valves are world class quality and comes at a sale price that cannot be beat.
34mm intake
.
33.5mm intake.
32mm intake. (stock "K" model size)
28mm exhaust.
Sold as a set or individually.

32mm STD Size Stainless Steel
Hard Chrome Intake Valves

This selection of "hard chrome" valves are endorsed and used by top engine builders for decades.

These valves are designed and manufactured with the "preferred" 69-76 valve keeper groove. These valves will work in 77-78 K model heads by changing the keepers and top spring retainers from earlier 69-76 models.

 

ENV-32MM

$24.99 per valve

Quantity

 

 


 

33.5mm 1.5 Oversize Stainless Steel Hard Chrome Intake Valves

Check out the quantity discounts for sets of 8 valves.

Note:
Hard Chrome valve stems have been used by S&S Harley high performance manufactures for decades. 

These valves are designed and manufactured with the "preferred" 69-76 valve keeper groove. These valves will work in 77-78 K model heads by changing the keepers and top spring retainers from earlier 69-76 models.

 

ENV-335MM

$24.99 per valve

Quantity

 

34mm 2mm Oversize Stainless Steel Hard Chrome Intake Valves

Quote:
These valves are the best quality we have seen for any price.

These valves are designed and manufactured with the "preferred" 69-76 valve keeper groove. These valves will work in 77-78 K model heads by changing the keepers and top spring retainers from earlier 69-76 models.

 

ENV-34MM

$24.99 per valve

Quantity


 

 


 

28mm Stainless Steel
Hard Chrome Exhaust Valves


Quote:
We have used these valves in our TQ racer for over a decade.

These valves are designed and manufactured with the "
preferred" 69-76 valve keeper groove. These valves will work in 77-78 K model heads by changing the keepers and top spring retainers from earlier 69-76 models.

 

ENV-28MM

$24.99 per valve

Quantity


 


 

 

 

Solid One Piece Stainless Steel Hard-Chrome Stem Valves, Set of 8

Check out the high performance solid, one piece, stainless steel hard chrome valves. Stellite tipped and added machine swirl. These valves are world class quality and comes at a sale price that cannot be beat.
Intake valves come in your choice of 32mm (stock), 33.5mm (1.5mm oversize), or 34mm (2mm oversize).
28mm exhaust.

 

RF-84

$179.92 set of 8 ($20 off!)

Intakes

 

 

 

Cryo Treated Valve and Guide Kits (Highest Level)

These kits are for the high-performance minded engine builders. (K models)
Standard exhaust valves 28mm.
Intake valves come in your choice of 32mm (stock), 33.5mm (1.5mm oversize), or 34mm (2mm oversize).
High lift premium cast iron valve guides (the best).

 

RF-88

$299.00

Intakes

 

 

 

Cryo Treated High Lift Cast Iron Valve Guides

The testing is done and our test bike showed zero wear in 37,000 miles. We don't have time to see how long these cryo valve guides could actually last. Maybe forever!

ENV-034     $168.00

 

 
 
 
 
 
 
 

 

 

 

Black Diamond Intake Valve (STD.)

All KPMI® Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

 

Valve, Black Diamond™ Stainless, Std. IN, Honda®, CB™ 750 SOHC (Excluding F2™), 1969-1977

1 valve per quantity.

30-4186     $34.95

 

Black Diamond Intake Valve (+1.5mm) Oversize

All KPMI® Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

 

Valve, Black Diamond™ Stainless, +1.5mm O/S IN, Honda®, CB™ 750 SOHC (Excluding F2™), 1969-1977

1 valve per quantity.

30-4187     $49.95

 

Black Diamond Exhaust Valve (STD.)

All KPMI® Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

 

Valve, Black Diamond™ Stainless, Std. EX, Honda®, CB™ 750 SOHC (Excluding F2™), 1969-1977

1 valve per quantity.

30-4188     $34.95

 

Black Diamond Exhaust Valve (+0.5mm) Oversize

All KPMI® Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

 

Valve, Black Diamond™ Stainless, +0.5mm O/S EX, Honda®, CB™ 750 SOHC (Excluding F2™), 1969-1977

1 valve per quantity.

30-4189     $49.95


 

 

 

Gaskets

 

Honda CB750 Super Gasket Set (Race Proven)
"New Version"
Now featuring an oil filter, oil pump stopper spring, pressure relief spring, oil stopper rubber and oil filter "O" rings. (At no additional cost!)

Cycle X super gasket sets are a premium quality cure for age old problems concerning chrome covers, untrue surfaces, re-torquing
and the need to run to the hardware store for miscellaneous "O" rings.
Cycle X was the first to put effort, expense and test these modern gaskets on Honda cb750s.

Head Gaskets: MLS head gaskets have been around for years. They feature great rebound and are layered steel with a Viton coating.
Base Gaskets: Steel with Viton coating.
Side Cover Gaskets: Alloy with Foamet coating is the same combination used to stop old Harleys from leaking.
Oil seals and every "O" ring in the motor that most kits do not include.

Super Gasket Set Includes:

MLS head gasket available in most bore sizes
(no re-torquing needed) 

Base gasket available in .010 and .014 thickness

Valve cover gasket. (no leak alloy foamet coated)

Dyno cover gasket (alloy foamet)

Trans cover gasket (alloy foamet)

Clutch cover gasket (alloy foamet)

Sump cover gasket (alloy foamet)

Cam chain gasket (alloy foamet)

Oil pump gasket (alloy foamet)

(4) Cylinder liner "O" rings

(8) Valve inspection "O" rings

(4) Oil feed "O" rings (inner intake cylinder studs)

(4) Cam tower "O" rings (under the cam towers)

(2) Oil line "O" rings (oil lines bolt to the motor)

(3) Oil pump "O" rings (oil pump bolts to the case)

(1) Case "O" ring (between case halves in the front)

(4) exhaust gaskets

(6) nickel plugs (under the cam tower)

(8) valve seals

(3) galley plug "O" rings (oil pressure gauge and galley plugs under the motor)

Oil seal set (69-76 with 77-78 counter-shaft seal optional)

Points, starter and breather cover gaskets

Note: Specify  STD, 836, 849, 915 or 1000cc for head MLS head gasket.

Cycle X super gasket kits are race proven and are the best money can buy.

ENG-001    $218.95    Cycle X Race Team Approved

Choose Bore Size / Thickness
Early or Late?

 

 

Honda CB750 Oil Seal

1977-78 Honda use this bigger seal around the counter shaft.
You will need this seal if you have a 77-78.


OL-006     $13.99     (Each)

 

 

 

Transmissions

 

CYCLE X BILLET HIGH PERFORMANCE TRANSMISSIONS

The highest level Honda CB750 SOHC products is our goal.

Our newest addition to the highest level Honda CB750 products available are the race proven complete Cycle X Racing transmissions.
 

 

Nova "B" Transmission and Cycle X Chain Wheel and Hub Combo

These transmissions feature new splines (15 tooth), large unbreakable dogs, super polished and race proven.
These transmissions are for high horsepower applications or for people that simply want the best products for their special Honda CB750's.
The transmission also comes with the 4 bearings (mainshaft and counter shaft) (Japanese bearings)

1st 17 – 38 2.235:1
} 30.9%
} 19.8%
} 14.2%
} 11.8%
2nd 22 – 34 1.545:1
3rd 25 – 31 1.240:1
4th 31 – 33 1.065:1
5th 33 – 31 0.939:1
 
Overall reduction 1st – 5th 58.0%

The Cycle X Refurbished Chain Wheel and Outer Clutch Hub

We disassembled the cush drive and glass bead for inspection. The inner portion of the hub is drilled and tapped for screws to replace the long rivets installed by Honda to hold the drive together.

Before installing the new cush drive rubbers, we measure the amount of deflection or wobble the two sprockets have. Most hubs have different measurements. But, they generally deflect or wobble over 2mm measured by the outer tooth area, relying on the cush rubbers to keep things somewhat stable. With that said, we surface the outer plates and machine the inner portion to reduce this deflection and wobble.

Before we install the specific length and material cush drive rubbers, we remove and install (2) new needle bearings on the inside.
We like to use later model clutch arrangements and will also fit in earlier motors.
This chain wheel and clutch combo has been refurbished as described above with inner clutch hub oiling modifications.
The chain wheel and clutch assembly combo is then balanced to absolute perfection. (1/2 gram, 1 in. from the center line)

 

ENL-032     $2999.00

Call to order. One (1) available.

 

 




Fresh out of the machine shop .... Honda cb750 sohc "undercut" transmission. ( early version)
 

Under cutting:
Angle cutting the engagement dogs to keep from slipping out of gear under loads.
Under cut transmissions are a good idea for stock motors as well. Most modern transmissions have angle cut gears from the factory.
We have 4 early under cut transmissions "in stock" that have been inspected, glass beaded, angle cut 2nd, 3rd and 4th gears and assembled with new Honda OEM cirlips.  Better than new.

In stock .... In stock ... In stock

RF- -0011
$549.00
 

 

 

 

 


H

Honda cb750 sohc undercut transmissions .... In stock. (early version)
Under cutting:
Angle cutting the engagement dogs to keep from slipping out of gear under loads.
Under cut transmissions are a good idea for stock motors as well. Most modern transmissions have angle cut gears from the factory.
We have 4 early under cut transmissions "in stock" that have been inspected, glass beaded, angle cut 2nd, 3rd and 4th gears and assembled with new Honda OEM cirlips.  Better than new.

$549.00    RF-0012
In stock ... In stock ... In stock
 


 




Poor mans close ratio under-cut Transmission.

Honda cb750 sohc .... 2nd, 3rd and 4th under-cut version used throughout Europe and the world.

1st ........  2.5
2nd .... 1.708
3rd .... 1.333
4th ....  1.096
5th .....  .067

In stock ... In stock ... In stock.

RF-0013 Euro  $599.00
 

 

 

Transmissions Identification Early & Late

In order to have a good operating transmission, you will need a good operating clutch.
There should be no debate on the benefits of a under-cut transmission.
Statements like "It's harder to shift or get the transmission out of gear when shifting" only makes sense if the gears are under-cut with severe angles or the clutch is not operating correctly.

 

2nd Gear

 

 

4th Gear

 

3rd Gear

 

 

Crankshafts & Connecting Rods

 

CARRILLO Connecting Rods

We would like to welcome CARRILLO connecting rods to our lineup of hot rod Honda CB750 SOHC parts. These connecting rods are used by the top engine builders worldwide.

 

ENL-CCR     $1,095.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

69mm Honda CB750 (69-78) SOHC Stroker Crankshaft

This crankshaft has been freshly refurbished, Stroked to 69mm (63mm is stock), Micro polished, Balanced to perfection.

Inspected and magnafluxed, increased stroke to 69mm, and dynamic balanced.

Ion-plasma nitrided, straightened, and micropolished all journals.

 

This chart shows the displacement increases when using this 69mm stroker crankshaft. 
 
Bore (mm) Displacement (cc)
61.00 807
65.00 888
67.00 973
67.50 1002
70.00 1062
73.00 1171

 

ENL-69MMSC     $1,484.00 (Outright sale)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dry Film Lubricated Rod and Main Bearings

CT-1 is a Dry Film Lubricant coating that helps reduce friction and abrasive wear. It provides intermittent dry lubrication and is not affected by dust or dirt. CT-1 is specifically engineered to withstand the extreme conditions of today's high performance engines. Professional engine builders enjoy a higher level of confidence with increased embedability, strength and durability.

CT-1 Dry Film Lubricant coating is applied as a spray process. Different surface preparation methods appropriate for the substrates will be used prior to the coating process. Coating thickness is varied to suit the application. Typical coating thickness for engine bearings is 0.00025" to 0.00030" inch (6 to 7.5 microns).

Temp. Rating:
Process Temp: 350°
(176°C), Max Temp: 500° (260°C), Int. Temp: 600° (315°C)

Thickness:
Thickness (mill): 0.2 - 0.4

 

Stories are more fun!

A top level pro-mod drag racer was having connecting rod bearings failures every run down the drag strip years ago, the con-rod bearings were flattened out and were clearly junk. The distraught drag racer happened to reach out to our coating people for answers. Our people provided the pro-mod racer with a set of "dry film" connecting rod bearings and the machine ran more than 12 runs that weekend with virtually no signs of wear. True story!

Note:
These bearings are in stock in only green and yellow.
Other colors are special order.

 

ENL-017

Rods or Mains?
Choose Color

 

 

 

 

Pistons & Related

 

Honda CB750 Stroker Piston Sets

These 70mm diameter stroker piston kits are designed for 69mm or 70mm crankshafts (63mm is stock) and result in a 1060cc plus displacement. We feel the best way to build a big bore stroker motor is to move the wrist pin holes rather than use shorter connecting rods or spacer plates like people used in the 70's era. These world class pistons are 170 grams (bare weight) and feature our race proven Cycle X domes.

Question:
Are these pistons only for race applications only?
Not really. With the proper camshaft selection and combustion chamber modifications, these kits would make the ultimate "hot street" motor.

Cycle X CB750 F/K BB Stroker 2.756"
Clear: 0.00200 (0.051000mm)
Comp. Ht.: 0.8074
Bore: 2.7559
S525 CW15
2756XA

These kits include our Cycle X big bore sleeves which have become the clear favorite with engine builders. The sleeves are super dense and are some of the longest lasting sleeves in the industry. Most skilled machinists can hear the difference when boring and feel the difference when honing.

ENP-SPS     $989.95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder Sleeves for 836, 849 & 900cc Bore Kits

Even though 836 big bore kits have been around for years, some people believe that the wall thickness is thin. So, many people install these sleeves to regain wall thickness. These sleeves will be needed when increasing bore sizes larger than 65mm (836cc) up to 67.5mm. Outside diam. is 2.916 inches (74mm) The bottom of the sleeve is tapered down 2.752 (69.9mm) to allow the sleeves to fit inside of the upper case without bore the upper case larger. Inside diameter is 2.522 (64.07mm)

These sleeves have been the choice of engine builders for decades because of their dense long lasting cast iron materials. Most machinists can hear the difference when boring the cylinders and feel the toughness/denseness when honing them.

World class, race proven, and a price that is impossible to beat.

Note: Sometimes the upper cases have casting flash or casting protrusions which will need to be removed.

Note: Cylinder block will need to be bored for these sleeves.

Cycle X cast iron sleeves are the best in the industry.

 

836-849-900-SLEEVES     $219.00     (set of 4)

 

 

 

 

 

 

 

 

Big Bore Sleeves
Best in the industry!

Sleeves for 970, 1000 and above. 69mm I.D., 74.5mm O.D.

These sleeves have been the choice of engine builders for decades because of their dense long lasting cast iron materials.

Most machinists can hear the difference when boring the cylinders and feel the toughness/denseness when honing them.

World class, race proven and a price that is impossible to beat.

Note: Cylinder block and upper case boring required.

 

Cycle X cast iron sleeves are the best in the industry.

 

BIGBORE-SLEEVES     $219.00

 

 

Clutches

 

Heavy Duty Billet Lifter Plate

Have you ever broke an OEM lifter plate when tightening the clutch springs?
You will some day!

Anyway, here are some heavy-duty billet lifter plates with new bearings installed.
Problem solved.

 

ENL-036     $63.95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Ultimate Clutch Kit!
New 5 Plate System

Why is this the "ultimate" system?

We've corrected some of the problems with the Honda CB750's and included high-end products to complete the kit. We have continued developing the Cycle X system and people are raving about the 5 plate system.

1)  Includes a billet lifter plate. You know, the plate that breaks when you are tightening the springs. New lifter plate bearing included.

2) Includes the proper spacer, steels and frictions. This arrangement will keep the friction plates away from the alloy OEM clutch center and pressure plate. No more chattering, grabby, noisy and inconsistent operation.

3) Speaking of high-end products, the kit includes Barnett steel and friction plates.

4) EBC medium pressure springs to keep your left hand happier.

5) Cycle X "no leak" clutch cover gasket. Super quality!

6) Bolts and oil seals. You might need them.

Guaranteed satisfaction.


Can't tell if you have an early or late model? These instructions should help you identify.
Early is 1.460 clutch pack thickness. Late is 1.560 clutch pack thickness. (Steels and frictions combined thickness.)

 

ENL-035     $249.00

Early or late clutch hub?

 

 

Barnett Clutch Plates (69-78) Honda CB750 SOHC

These Barnett clutch plates have been added to our large line-up of clutching options for Honda CB750s from mild to big horsepower applications.
These Barnett clutch plates upgrade for the six spring system.

Call for new springs and Barnett steels.

ENL-034     $88.95

 

 

 

 

 

 

 

Cylinder Studs

 

Super Stud and Heavy Duty Stud Nut Combo

Ever wonder what it would be like if Superman and Batman teamed up? Neither have we, but we did wonder what it would be like if our Super Studs and our new Heavy Duty Cylinder Stud Nuts teamed up.

The outcome is a combo that takes strength and performance to a new level.

Our Price: $195.95
Sale Price: $165.95

ENV-CXC

 

 

 

 

 

 

Oil Related

 

 

 

 

The Oil Pump Rebuild Kit, Complete

These oil pump kits are endorsed and used by top engine builders worldwide.

Kit includes:

Oil pump rubber stopper.
     Prevents oil from entering the motor from the oil tank when not running.
Oil pump stopper spring.
     New is good.
Pressure relief spring.
     Important to keep oil pressure up instead of dumping off into the crankcase.
Oil pump screen.
     Hard not to damage these screens when disassembling the pump.
Oil pump o-rings.
Oil pump mounting o-rings.
Oil pump screws.
     Nice and new for reassembly.
Oil pump center oil seal.
     Honda OEM seal, not pictured.

OL-020     $ 199.95 In stock.
 

 

 

 

Machine Work

 

#6 Head option (Big port) introduction.

We decided to reproduce our hot-street, race head for you go fast folks. These cylinder heads have modified, machined large intake spigots. Honda CB750 heads only allow the intake ports to be opened up to a certain amount before breaking through to threads or atmosphere. Epoxies are then needed. These heads will be offered in "K" and "F" versions and are specifically designed to use our Mikuni RS 34mm or bigger carburetors, large camshafts and big bore kits.
 
 
 
 
 
 
 
 
 

 

 

 

O-Ring Oil Feed Modification

There seems to lengthy discussions about head gasket thickness, o-ring thickness, cylinder block thickness, oil leaks, oil starvation to the camshaft, etc. Anyway, here is what we have been doing for decades. We install dowel pins so the o-rings stay in place. We have seen many circumstances where people have installed oversize o-rings or thinner gaskets and the o-rings worked their way inwards, causing numerous problems. Honda used this procedure on oil lines and other areas. Not sure why they didn't do this to the top of the cylinder.

 

$49.00 (Parts and labor)
 
  

 

 

 

 

 

 

 

Upper Case Boring

This procedure is needed for big bore applications when large sleeves are installed.

$100.00 (Stud removal is extra $)

 

 

 

 

 

 

 

 

 

 

 

Engine Case Main Bearing Alignment Repair
 

Ever notice Honda CB750 main crankshaft bearings have rub marks here and there in a random manner? Ever wonder why Eraldo Ferracci suggested to tighten the main bearing bolts in 2 lb increments checking for a binding crankshaft and recording the torque figure at bind?

We applied blue dye to the engine case main bearing bores to exaggerate our observations years ago for photo purposes.

After applying the blue dye for photo purposes, we inserted our special machined alignment tool, torqued the main bearing bolts and rotated the tool. This procedure exposed tight areas, barely visible nicks in the main bearing area and possibly slight warpage.


Due to the fact that Honda main bearing clearances are generally in the .0015 to .002 range and Plastigage gauge measuring is a crude form of measuring in many circles. This sends up a few red flags about crankshaft alignments. Line boring the cases is not an option because of oversize bearing availability.

The 2nd photo (hard to see) shows these random rub marks with .002 Plastigauge clearances. To help with this potential problem is to remove the high spots, nicks and such ONLY with our special tool and procedure. After the crankshaft is reinserted in the cases and torqued, the crankshaft spins noticeably easier.

Happy motor!


Send engine cases and case bolts (Clean would be appreciated)

Call to order

$85.00

 

 

 

 

 

 

 

New shop balancer!

This balancer has proven to balance crankshafts and clutch components to a fraction of a gram. This amazing product and technology will mathematically balance items to almost 30,000 RPMs. Crankshafts, chain wheels and clutch hubs will be in stock and balanced to absolute perfection.

 

 

 

 

Quote:
"Inline 4 cylinder Hondas are so smooth!"

Well, they are nowadays with the help of the Cycle X balancing procedures and balancing machine.

We thought you might want to see our balancing machine again with our chain wheel and outer clutch hub balancing rig. These chain wheels and outer clutch hubs have been out of balance up to 16 grams and crankshafts up to 12 grams out of balance from time to time. Our target for balancing crankshafts and clutch components is 1/2 of a gram, 1 inch from the center line. Check out the video of a coin on a running motor that has been balanced to perfection.

By the way, we also balance many other makes and models of motorcycle crankshafts.

 

 

 

 

 

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Cam Chain / Primary Chain Tensioner

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NOTE: As of July 1st, 2018, an extended goods and services tax (GST) has been applied to all Australian consumers buying overseas, charging an extra 10% in taxes to us with each purchase. To ensure that you can continue to purchase from us in Australia and we can provide our parts at our usual lower cost, please contact us at the email below if interested in any particular parts so that we can make a special shipping arrangement for you.

 

It is the sole and exclusive responsibility of the purchaser to determine the suitability of any part, product or work for his or her use.
The purchaser shall assume all legal, personal injury risk and liability and all other obligations, duties and risks therewith.
There is no warranty on High Performance products.

 

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346

Email: hotrodcyclex@gmail.com