Thanks Trials Rider, very generous of you!Bring it here and I can help you adjust your valve clearances
I'd almost put money on it your hard start problem is valve clearance being wrong. I don't even try to check them any more, I just go straight to adjusting the clearances if they have screw type adjusters and not shims.
(P.S - I'd love to come riding in Canada, winter and summer! That's on my bucket list!)
Yep, you might be right, valve clearances may still be well out. They are the screw type adjusters and I've tried setting them to 0.002 (Exhaust) and 0.003 (Compression) but I'm guessing I'm not the first person who finds getting them perfect or at least within tolerance is kinda tricky.
I've taken the centre and top caps out of the engine cover, turned the crank CCW to find TDC, but find that it does "Flop" past that a lot? If that happens, my understanding is that you can't "go back"? You have to repeat the 2 rotations CCW and get it to sit just on TDC on the compressions stroke? (I've read about leaving a heavy ratchet on the crank to hold it in place and not "flop forward"?)
REALLY subtle movement on the valve tappet on Compression. Hard to notice the difference at the first couple of attempts....and if they TIGHTEN up over time, how the hell are you supposed to know which is which, if they're both tight! Yep, I've put a pencil in the spark plug hole to see what the piston is doing, but that doesn't help does it? (because the piston goes up to the same height/point on both exhaust and compression strokes, right?)
I'm also wondering, if it's NOT a Piston/rings/cylinder issue, if it could be the decompressor. Either the Lever or Kickstart one?
(My 92 Manual shows a cable connecting the two, from the decomp lever at the top of the engine to the kickstart decomp and the bottom, but it's been removed from my bike. Don't think it ever had one when I bought it in.......1998! Whoa, long time ago huh I'm not sure if that cable missing is a problem or not.)
Anyway, compression tester coming today, so I'll test over the weekend and update........
Thanks again for your comments TrialsRider