HEllo,
Need some help, I just put a new piston and rings in my TT500, ( my first four stroke build) and when going back together with itI followed the manual, i aligned the T mark on the gear on the rightside of the engine, flywheel T also aligned, installed cylinder, piston, head, and then camshaft, book says to have the camshaft gear pin in the 12 oclock osition, did that, installed cam gear, book says index mark on cam gear will align with top of head sealing surface which it did, installed rocker box, checked valves, .0003 on intake, ,005 on exhaust, checked point gap and cleaned. put bike back to gether, checked plug to see if we are getting fire, have good fire. Now here is the problem, I cant even get the bike to fire. Nothing, Got tired of kicking and pulled with the 4 wheeler, nothing. At this point I am guessing that I have the cam aligned on the exhaust stroke.
My question is, with the motor tore down, ( cylinder and head remvoed) how do you tell which stroke is compression and which is exhuast.
I know this my be a stupid question, but I am stumped and need some help, have done everything that the manual says and am about to take an BFH to it.
Ok, with the help of a friend I finally figured out the problem, I am going to leave this post so that if someone encounters the same problem , maybe by reading it will help them, I had the motor timed on the exhaust stroke, and the way I found out was by watching the points as I turned the motor over, points closed on exhaust stroke, points open on compression stroke, that simple, some times the simplest of things will drive you crazy, Hope this helps someone down the road.
_________________ C Bly
74 CR 250M 74 CRF 175 75 XR 75 77 ProFab Aberg HL500 97 Montesa Cota 315R 2003 CR500 AF 2004 CRF 450
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