Author Topic: Cams,tensioners,cam chains,cam sprockets (Read 2826 times)

Bill/BentON Racing · « **on:** January 31, 2013, 05:32:16 PM »

Been digging in batcave!

Thought we could start a topic on cams,tensioners etc. What was original,mods for CR's,early aftermarket,what's available now? For instance,slotted cam sprockets,early RC not slotted,but had 5 & 8? degree alternative holes,Jay,APE sells a nice slotted one Heres a pic of stock
RC
APE's

Now heres a few used/new cams for CB750's!

A stock tensioner.what wear?

A modified assembly,both wheels different? Who made?

A KOS style M3 Racing,but I believe a copy

Also H/D cam chain

Stocker

Another way of replacing,without splitting cases.......beware!

Stock early K sprocket,later F style,I believe.

Stocker slotted by owner?

We also have stock tensioner adjuster and fixed like APE sells! No pic rt now. Bill

MRieck · « **Reply #1 on:** February 01, 2013, 05:57:58 AM »

That "home made" slotted sprocket looks a little rough Bill.

Jim F · « **Reply #2 on:** February 01, 2013, 12:06:26 PM »

I slotted my own but used a rotatory table and a Bridgeport mill
the material is tough to mill though.

Jim

Sam Green Racing · « **Reply #3 on:** February 01, 2013, 02:21:32 PM »

I had one of those so called "ROUGH ones"

just took a small round file to it till it was right, worked a treat.

Sam.

754 · « **Reply #4 on:** February 01, 2013, 04:06:53 PM »

I think the solid roller one is a yoshi, got one here somewhere.. Bill is the Camfather..lol

Big Jay · « **Reply #5 on:** February 02, 2013, 02:05:21 PM »

Quote from: MRieck on February 01, 2013, 05:57:58 AM

That "home made" slotted sprocket looks a little rough Bill.

I'say!!

Bill/BentON Racing · « **Reply #6 on:** February 02, 2013, 04:38:52 PM »

Coming from two of the best machinists around...I agree.heres more!!These real rough!Material is tough as previous owners found out!! ::)I will admit my first attempt on 590 roadracer wasn't a whole lot better!!!

All came out of bikes or parts picked up!

Bill

MRieck · « **Reply #7 on:** February 03, 2013, 06:12:15 AM »

I'm no real machinist Bill. I certainly know some.

spiritof67 · « **Reply #8 on:** February 04, 2013, 02:22:18 PM »

Yes, but back to the original thread which really needs some talking about.....

So I'll posit un tesis: The M3 full replacement is the safest high performance setup currently available.

Contention?

Spirit

Bill/BentON Racing · « **Reply #9 on:** February 04, 2013, 02:58:22 PM »

I was wondering about the Yosh, did it also sling oil off high rpms? The rest of it sure looks better than oem! Didn't people adapt sprocket from CB 450's? I believe the one in Samauto is Mark's. But I thought there was one or two out similar design? Anyone know for sure? Bill

cbr954 · « **Reply #10 on:** February 04, 2013, 04:37:39 PM »

I am running the tensioner from Cycle X but its the same thing as the M3 setup, sure looks like it should be easier on the chain.

Bill/BentON Racing · « **Reply #11 on:** February 04, 2013, 05:26:39 PM »

Aha, one in Samauto probably from CycleX, I'd venture to say.

Bill

Jerry Rxman Griffin aka MuthaF'er · « **Reply #12 on:** February 04, 2013, 06:37:03 PM »

Is the CycleX version a KA Performance part also?

cbr954 · « **Reply #13 on:** February 05, 2013, 06:30:17 AM »

Yes mine had KA Performance on the side of it.

Sam Green Racing · « **Reply #14 on:** February 05, 2013, 08:19:31 AM »

Quote from: MRieck on February 03, 2013, 06:12:15 AM

I'm no real machinist Bill.

but I'm $hit hot with a Rollex

Kickstart · « **Reply #15 on:** February 10, 2013, 07:50:24 PM »

Does anyone know if the APE adjustable sprocket is balanced weight wise? It appears that it might be.

Also, does anyone know which weighs less, the Dynoman or APE adjustable sprocket? Neither one looks lighter than the stock F's. But I need an adjustable sprocket and I don't think the F's has enough room to slot it.

Retro Rocket · « **Reply #16 on:** February 10, 2013, 08:13:38 PM »

You selling any of these parts Bill ?, if yes, and you haven't sent my parts off yet i would like that M3 style tensioner and HIPO cam chain please {if the chain is unused} , if no, just ignore this....

sohc boy · « **Reply #17 on:** February 11, 2013, 02:13:47 AM »

second pic is multi adjust ,which i purchased long ago ,blueish colour like been hardened dont know made it ?,first one slotted , purchased not rat tail filed ,hard to see in pic , it has been wiggling arond where bolts tighten on it , ..... sprocket is quite soft , i personally dont like the slotted , maybe APE ones are hardened , dont know

Bill/BentON Racing · « **Reply #18 on:** February 11, 2013, 03:47:19 AM »

Lower one looks RC upper late model F that was slotted, I believe.Bill
Retro, Ill PM in a hour or so. Thanks Bill

lordmoonpie · « **Reply #19 on:** February 11, 2013, 04:31:09 AM »

I've got a bit of a mix of these - KA Special slipper tensioner different to M3 as I'm running a hy-vo camchain from my DOHC crank so the runners on the slipper are at the edge and not at the centre. The cam sprocket is a custom made job created by mixing a slotted race CB750 sprocket with a CB700 hy-vo sprocket, end result being fully adjustable hy-vo sprocket! The front camchain slipper blade is also custom made using a CB250 tensioner arm that is then cut down to fit the CB750 SOHC tunnel. The combination of all of these seems to offer less cam chain turning resistance than using a high performance chain and slipper tensioner on my CB350 or 500 twins

It all works real nice

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Author Topic: Cams,tensioners,cam chains,cam sprockets (Read 2826 times)