T100 Bonnie Watercooled.....what The Valve Clearances?

You may be right about the Haynes manual being wrong. I recently serviced my 1200 engine and looking at my notes the measurements for the exhaust values are 0.16 and 0.18 and I remember thinking at the time that they were only just in spec. Though I don't appear to have made a permanent note of the correct gap range, which I think I got from Triumph's official servicing instructions. They're at https://triumphtechnicalinformation.com/ and It costs 6 quid I think for a month's subscription (remember to cancel before it auto renews).

The guy at TEC Bike Parts fitting a new camshaft on a T100 quoted the 0.08-0.18 figure. See...

https: //youtu.be/J8xUOAROsBc?t=2031

Note, remove the space after the https: above which I put in there to stop the forum software converting it into a 'media' link which starts the video from the start, not at the time point I gave where it mentions valve clearances.

 

Let us know what the correct values are, save me a few quid next time

One thing I found when doing clearances was that removing and replacing rockers seemed to make clearances go down. So I ended up getting thinner shims than the maths would indicate. E.g. for one inlet I used a 0.075 thinner shim just to increase gap by 0.02, and for some (not all) shims that I didn't change, the gap went down a little after putting rocker on. And yes, I rotated engine loads to make sure shims were seated properly, and even tried removing and replacing rockers. And my digital micrometer was consistent and accurate when measuring shims.

 

I set the clearances on my first Scrambler to those shown in the Haynes manual and it not only ran fine but actually quietened the tappets somewhat which was strange as they were all on the tight side which defies logic. I'll be using the same specs on my new 2022 model when the time comes. There appear to be quite a few electrical differences between the two models, possibly down to the Euro 5 crap but I assume the valve specs to be the same.