Cbr600 2002 Engine wont idle/run when warm

[Pete.]

[kramdra]

Not done much on this recently. TB's needed to come off for a clean and to get the tensioner off.
https://i.postimg.cc/bYC3ByNs/IMG-20200617-202156.jpg

https://i.postimg.cc/pTcmQ1Q1/IMG-20200617-202144.jpg

Cams are back in. Timing should be correct.

https://i.postimg.cc/g2NJvTKF/IMG-20200617-203213.jpg

Tomorrow I'll check timing and clearances, then start on the new tensioner and top guide.

[kramdra]

Slowely been doing bits of this. All shims are perfect but timing was a pain. Currently the intake cam is half a tooth early, which is bad, but it does not interfere when turning by hand. Cam sprocket is 36 teeth so that works out at 5 degrees. I may adjust it again once Ive got the other parts done.

[Pete.]

[kramdra]

Yes something like that. Manual was not specific on a couple details, looked up elsewhere and it is perfect.

[MCN]

”90K miles without checking valve clearances”

WT Utter F?

From a motorbike maintenance specialist too.



('Should simply be banned.' went the forum.)
____________________
Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

[kramdra]

Yet they were within spec. It is known that cbr6's rarely ever need adjusting past the first 16k and mine had the first two service intevals checked. If it were a fzr600 or er6 I would be checking every year.

[sickpup]

[MCN]

The check is so there is less oppercancity of Surprises.
If you notice regression it can be planned for next service. 😉
____________________
Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

[kramdra]

Twice is more than none. I would happily have left them another 32k as they were but I was interested to check cam wear, which is zero. Would you put the rotten through swingarm down as a design defect or lack of maintence of a steel framed bike?

The chain jumping is due to the CCTL and is my own fault for ignoring previous advice elsewhere, to fit a manual CCTL. Honda told me their revised two-blue-spot version would last the life of bike but inside is identical - long weak spring and a trapezoidal threaded plunger. If the dealer had correctly assembled at 32k it would not have been noisy, and I would not have spent the last 8 years ignoring the noise, therefore would have heard the CCTL fail before it jumped. All could have been avoided by not trusting the dealer and checking their work, but I had better things to do. I will visit them sometime soon and get compensated for their fuckup.

[sickpup]

I'm trying to work out how exactly you link a swingarm rotting through and your failure to check the valve clearances or the noisy engine?

A swingarm rotting through is not by any means the same as willlfull neglect, as soon as I discovered the problem I fixed it, you ignored it for 3 years because you didn't know how to fix it and your pride wouldn't let you admit it. Well done that man, top banana

[kramdra]

I consider a completely rotten swingarm as yours was to be neglect. Takes only moments to check corrosion and drains, frequently oil the frame. It is suprising on such a new bike.

No I did not ignore it I took it straight back to dealer within a week, left it for a couple hours for them to look at and they told me it was fine and normal, I had no reason to think it was broken just annoying noise. As I said I trusted them. The guy I spoke to still works there so I will speak with him. I dont expect to be checking work when I pay money.

[kramdra]

Parts did arrive. They were cheap from a low miles bike. Tensioner guide has a knife mark but is ok.
https://i.postimg.cc/3N1fXHVM/IMG-20200718-142308.jpg

I cracked the tensioner guide getting it out, it was possible to swap without distrubing the timing, getting the new one in was a bit harder. The wear is minimal, but some porosity.

https://i.postimg.cc/D0KZ86CD/IMG-20200718-162834.jpg

I will temporarily use the upper guide, its not worn. It is thin and I do not trust the retaining blobs which are small.
https://i.postimg.cc/1RpXLxXZ/IMG-20200718-165230.jpg
I am not bothering with the other guide or chain. It will all go on ebay once my upper guide is swapped over.

[kramdra]

She runs. Starts on the button.
Lots more to swap and put back on before I can ride