If you're in need of tech help, refer to our camshaft tech tips page.

Honda SOHC High Performance Camshaft Details
 Camshafts always raise a lot of questions: What kind of performance do you expect? What kind of top end power do you expect?
What kind of riding do you do? What kind of valve relief do your pistons have?
Below are some camshaft profiles you will enjoy without the headaches that monster cams can produce without background and experience behind you.

Here is the problem...

With 11 Cycle X Honda CB750 camshafts and more to come, camshaft installation knowledge would be helpful to your machine shop and to the customer knowing what to buy. 

For example: Unless a "drop-in" camshaft is being installed. The machine shop or cylinder head assembler will need to know which camshaft is being used. Some of the most common heartbreak stories we hear from the public is that a customer had their head ported with oversize valves and all the latest, greatest parts and the valves collided because the the camshaft was chosen lastly. With most "big boy" camshafts, valve to valve clearance and also valve guide seal to top spring retainer clearances are very important but are taken for granted occasionally and a catastrophic situation occurs. The Cycle X high-lift valve guides prevent the top spring retainer from hitting and the valve guide seal from falling inside the keeper groove area of the valve stem and cause potential oil usage. We don't want to get long winded about the well documented procedures with cam clearances and installation procedures. So, here is what we are doing...

Under construction. More tech info coming soon.

For Advice Please Call (715) 356-7346

Disclaimer:
The values, specifications, spring pressures and clearances listed above and below are a good start to your Honda CB750 go-fast project. Results may vary.

Drop-in Camshaft No valve to valve or valve to piston checking needed. These 975, 990 and 1000 camshafts are all drop-in camshafts with ever-so-slight differences in characteristics that many people never notice. Check out the specifications or call for further advice. By the way, these drop-in camshafts might be the easiest install and best bang-for-the buck when it comes to performance upgrades. Very similar to the CX-1. INSTALLATION INFORMATION ENGINE:  Honda CB750 F2 (77-78); CB750 K (69-78) SOHC 8V   INTAKE EXHAUST VALVE LASH (INCH): .004" .005" VALVE LIFT (INCH): 0.328 0.325 DURATION @ .0.050": 227° 228° LOBE CENTER: 112.5° 103°   INTAKE OPENS     1°     BEFORE TDC EXHAUST OPENS     37°     BEFORE BDC INTAKE CLOSES     46°     AFTER BDC EXHAUST CLOSES     11°     AFTER TDC VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT. NOTE: This camshaft is considered a drop-in or a bolt-in grind. Valve to valve, Valve to piston, Valve drop at TDC and all the other performance checks and procedures are generally not needed.   "Generally" not needed?   Well, if someone has milled the head or cylinder, used bigger intake and exhaust valves, used stock pistons, used thinner gaskets and such, checking will be needed.   CX1-R-975     $265.00

Drop-in Camshaft No valve to valve or valve to piston checking needed. These 975, 990 and 1000 camshafts are all drop-in camshafts with ever-so-slight differences in characteristics that many people never notice. Check out the specifications or call for further advice. By the way, these drop-in camshafts might be the easiest install and best bang-for-the buck when it comes to performance upgrades. Very similar to the CX-1. INSTALLATION INFORMATION ENGINE:  Honda CB750 F2 (77-78); CB750 K (69-78) SOHC 8V   INTAKE EXHAUST VALVE LASH (INCH): .004" .005" VALVE LIFT (INCH): 0.328 0.328 DURATION @ .0.050": 228.5° 229° LOBE CENTER: 109.25° 105.5°   INTAKE OPENS     15°     BEFORE TDC EXHAUST OPENS     40°     BEFORE BDC INTAKE CLOSES     43.5°     AFTER BDC EXHAUST CLOSES     9°     AFTER TDC VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT. NOTE: This camshaft is considered a drop-in or a bolt-in grind. Valve to valve, Valve to piston, Valve drop at TDC and all the other performance checks and procedures are generally not needed.   "Generally" not needed?   Well, if someone has milled the head or cylinder, used bigger intake and exhaust valves, used stock pistons, used thinner gaskets and such, checking will be needed.   CX1-R-990     $265.00

Drop-in Camshaft No valve to valve or valve to piston checking needed. Kenny Harman "D" grind. OK with stock pistons. Use HD springs. Mid-range and some top-end. Longer exhaust duration allows for cooler combustion chambers. INSTALLATION INFORMATION ENGINE:  Honda CB750 F (75-76); CB750 F (77-78)  CB750 K (69-78) SOHC 8V   INTAKE EXHAUST VALVE LASH (INCH): .004" .005" VALVE LIFT (INCH): 0.345 0.327 DURATION @ .0.050": 277° 294° LOBE CENTER: 106.5° 110°   INTAKE OPENS     32°     BEFORE TDC EXHAUST OPENS     77°     BEFORE BDC INTAKE CLOSES     65°     AFTER BDC EXHAUST CLOSES     37°     AFTER TDC VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT. NOTE: This camshaft is considered a drop-in or a bolt-in grind. Valve to valve, Valve to piston, Valve drop at TDC and all the other performance checks and procedures are generally not needed.   "Generally" not needed?   Well, if someone has milled the head or cylinder, used bigger intake and exhaust valves, used stock pistons, used thinner gaskets and such, checking will be needed.   KHD CX-1     $299.00

Drop-in Camshaft No valve to valve or valve to piston checking needed. Broad power range. This cam will bolt right in stock engines. You will notice good power increase with this one. This camshaft profile was used on tight road-race tracks. You will like it. Made for Cycle X by Web Cam. Equivalent to their 41 Cam. INSTALLATION INFORMATION ENGINE:  Honda CB750 F (75-76); CB750 F 77-78) CB750 K (69-78) SOHC 8V   INTAKE EXHAUST VALVE LASH (INCH): .004" .005" VALVE LIFT (INCH): 0.340 0.340 DURATION @ .0.050": 229° 229° LOBE CENTER: 103° 103°   INTAKE OPENS     11.5°     BEFORE TDC EXHAUST OPENS     37.5°     BEFORE BDC INTAKE CLOSES     37.5°     AFTER BDC EXHAUST CLOSES     11.5°     AFTER TDC VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT. NOTE: This camshaft is considered a drop-in or a bolt-in grind. Valve to valve, Valve to piston, Valve drop at TDC and all the other performance checks and procedures are generally not needed. "Generally" not needed? Well, if someone has milled the head or cylinder, used bigger intake and exhaust valves, used stock pistons, used thinner gaskets and such, checking will be needed.   CX-1     $299.00

Drop-in Camshaft No valve to valve or valve to piston checking needed. Need a little more power? We have used this camshaft profile in stock displacement motors but check carefully. Works well with 836cc kits. Made for Cycle X by Web Cam. Equivalent to a 41A. INSTALLATION INFORMATION ENGINE:  Honda CB750 F (75-76); Cb750 F (77-78) CB750 K (69-78) SOHC 8V   INTAKE EXHAUST VALVE LASH (INCH): .004" .005" VALVE LIFT (INCH): 0.345 0.345 DURATION @ .0.050": 235° 235° LOBE CENTER: 95.5° 99.5°* * = 97.5° overall   INTAKE OPENS     22°     BEFORE TDC EXHAUST OPENS     37°     BEFORE BDC INTAKE CLOSES     33°     AFTER BDC EXHAUST CLOSES     18°     AFTER TDC VALVE TIMING IS CHECKED WITH ZERO VALVE LASH @ 0.050 INCHES OF VALVE LIFT. NOTE: This camshaft is considered a drop-in or a bolt-in grind. Valve to valve, Valve to piston, Valve drop at TDC and all the other performance checks and procedures are generally not needed. "Generally" not needed? Well, if someone has milled the head or cylinder, used bigger intake and exhaust valves, used stock pistons, used thinner gaskets and such, checking will be needed.   CX-2     $299.00 Call for availability.

CLICK HERE:  FOR INFO ON DEGREEING AND CAM INSTALLATION

Hardwelded Honda CB750 SOHC Rocker Arms

Hardwelded and precision ground from original equipment cores. These durable and long lasting rocker arms are important with high performance and even stock motor configurations. Many conversations are had with folks trying to make the flat tappet designs survive nowadays. Zinc and other and oil additives are being blended to help make these flat tappet motors live. On the other hand, hardwelded rocker arms are the best option. Recommended for use with all cam profiles, both billet and hardweld.

No core required. Outright sale.

For ALL year model CB750 SOHC 1969-78

ROCKER-ARMS     $492.00 (Set of 8)

Titanium Rocker Arm Jam Nut Set

These Titanium rocker arm jam nuts were used on our Vintage heavyweight Super Bike. They are now available for your go-fast Honda CB750 SOHC project. (69-78) 1.2 grams per nut.

ENV-321            $49.95

Full Floating, Self Compensating Cam Chain Tensioner

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:

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

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.

Final Fitment, Checking, and Testing

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).

ENG-108

Production delayed. Stay tuned for future details.

You will need these cam chain tensioners parts so your Honda SOHC does not sound like a wash machine. These are Factory Replacements direct from Honda.

Cam Chain Roller

ENV-001    $24.95

Cam Chain Roller Assembly

ENV-002    $54.95

Cam Chain Slider

ENV-003    $23.00

Cycle X Manual Cam Chain Tensioner
Fine Thread Manual Tensioners and Gasket Combo

ENV-107     Original price $59.00

Close out price: $25.00

OEM Adjustable Camshaft Sprockets

We all know why adjustable camshaft sprockets are used in the high performance world. But, stock motor configuration motors can benefit from these also. Have you ever tried to line up the camshaft marks after any sort of motor work or checking a few things? The marks usually never line up perfectly because of many reasons. One of the main reasons on a stock motor with any miles is cam chain stretch. The cam chain is like a rear chain. It stretches. So, install these modified poor man's adjustable OEM cam chain sprockets and realign your cam timing or install your performance cam.

CS-017A     $39.95

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346

Email: hotrodcyclex@gmail.com