Yamaha Part Numbers - CCT and Clutch Basket

[Motowalt]

$271 for the clutch basket sounds good to me, Thanks!

 

[BenSuper10]

I've tried searching and searching but I couldn't find anything about why the CCT fails. I'm still finding my way around this forum

Does anybody know which part of the CCT actually fails? my educated guess would be either the spring or the retracting screw shaft?

From what I can see from the old type to the new type CCT is the piston tip is slightly longer and the retracting screw shaft looks like it's made from stainless steel?

I have the old type in my bike and I can't see any wear or tear from it

 

[EricV]

There have been different failure modes. Spring breaking, shaft hanging up, etc. End result is that it doesn't tension the chain during that short period when oil pressure has not built up on cold starts. Most, if not all, of the failures have been during a cold start. Mine failed after an oil change, on a cold start, so there was a slightly longer period of time before oil pressure built up due to the oil change. I believe this was a causative factor and just maybe, if I had not changed the oil before taking it in, it wouldn't have suffered a failure with slippage and damage to the upper end.

What fails isn't important. It's a bad idea to go playing with your CCT. Attempts to re-tension the CCT have resulted in failures on other, similar Yamaha designs in the past. Yamaha basically says to replace the unit by the second valve check.

 

[BenSuper10]

There have been different failure modes. Spring breaking, shaft hanging up, etc. End result is that it doesn't tension the chain during that short period when oil pressure has not built up on cold starts. Most, if not all, of the failures have been during a cold start. Mine failed after an oil change, on a cold start, so there was a slightly longer period of time before oil pressure built up due to the oil change. I believe this was a causative factor and just maybe, if I had not changed the oil before taking it in, it wouldn't have suffered a failure with slippage and damage to the upper end.

What fails isn't important. It's a bad idea to go playing with your CCT. Attempts to re-tension the CCT have resulted in failures on other, similar Yamaha designs in the past. Yamaha basically says to replace the unit by the second valve check.

Thanks for the info EricV, I'm in the middle of doing the second valve adjustment, I've ordered a manual CCT for it. The CCT was replaced during it's first Valve adjustment, but was it replaced with the original Gen 1 CCT. I just wanted to know which part failed.

 

[EricV]

I just wanted to know which part failed.

Which part as in Gen I or Gen II? (Gen I only), or which part of the CCT? In which case, why? Bin it and move on. While there have been some complaints with the Gen II CCT, no one has identified an actual failure, to my knowledge. And it's not like you're going to rebuild a CCT. I hope the manual version meets your needs.

 

[Checkswrecks]

Ben said he has a 2013, so it is the 1st Gen bike with the weak tensioner.

 

[BenSuper10]

Which part as in Gen I or Gen II? (Gen I only), or which part of the CCT? In which case, why? Bin it and move on. While there have been some complaints with the Gen II CCT, no one has identified an actual failure, to my knowledge. And it's not like you're going to rebuild a CCT. I hope the manual version meets your needs.

lol, sorry about that, my fingers were too fast for typing and my keyboard is shite!!
I meant "it was" replaced with a Gen 1 CCT.

not to worry, it's now hanging with all the rest of failed parts that I've come across through the years!

 

[dcstrom]

New CCT part number seems to be
2BS122100100

 

[beastie]

Gen 1 bike with rattle on start up here.
Insert MCCT 3 years ago.
1 adjustment,about 2 weeks after install,probably 1/16 of a turn.
Never rattled again.

 

[shift_enter]

does anyone have a Recording of the start up rattle mentioned in this thread? my s10 is a little bit noisier than other bikes that I had, and I’ve been told it’s normal. from what I did use from reading this thread is only at start up, the noise that we’re looking for

you can hear my engine running in the background in this video

 

[beastie]

The speaker in my computer makes your bike sound different to my phone,so I'd struggle to say what your noise is.
The CCT noise for me,was always on cold start,only for several seconds and slightly worse if my bike was on the side stand. It kind of sounded like dragging a chain out of a steel box.
Your noise sounds a little more clutch like. On mine,the clutch noise is louder after a run,where the engine is good and hot,and less noisy with clutch pulled in.
My MCCT was my best mod so far. 30 minutes to install,adjusted it once and I've never had the start up noise again. If your bike is out of it's warranty period,put a MCCT in it and ride the thing. I personally wouldn't do the Yamaha CCT in it's new guise,at all,but that's just my personal opinion.

 

[jrusell]

If you are on Facebook here is a link to the startup rattle. After a few seconds it disappears.

https://www.facebook.com/video.php?v=10217332978904695

 

[beastie]

Sounds like CCT noise to me.
Grab a good MCCT,metric socket set,couple of metric spanners and go for gold. Very easy job,and ,honestly,on the 4 bikes (all different makes and models) I've put them in,I had to adjust 2 of them,only the one time.
I frequently ride my bike at higher revs,it is definitely not babied.
Again,this is only my opinion,but the Yamaha CCT's are not up to the job.
All the best with yours.

Pete.

 

[Helmet2312]

Hey Guys
Has anyone fitted these 2014 clutch bits to an Aussie 2010 ST?

Did you ever find anyone to do it pfffmtd?
I am wanting to do mine so need someone to do it for me.