GS250T timing marks question

[Igor]

i took these when i was first stripping the engine for reference, so it ran when it was like that. I'm going to check again and cross reference

inCollage_20180207_131917924.jpg

[Igor]

heres a closeup of how it was when i first took the cover off

Screenshot_20180207-132507 (1).jpg

[Igor]

i've re-adjusted the valves very slightly and slightly tweeked the cam position and im now getting 60 psi on both sides. still way off 110psi

Screenshot_20180207-143712.jpg

[Gorminrider]

Ok, that at least looks like the 250 shop manual...your earlier diagram is from the GSX400 manual.
250camchain.jpg

[Igor]

It's running! Finally! a couple of the valves clearances was slightly too tight and probably wasn't fully closing!

Tomorrows task is to try and get it to run right by playing with the carbs. idle is all over the place and it will only fire up with a little squirt of starter then it runs fine on its own

[fastbysuzuki]

it was running fine before i stripped the engine to fit the new valve, so it cant be worn rings etc surely

I did not say your bores and rings are shot, by putting oil in the cylinders and running a compression test will point you to where the problem lies i.e. If the numbers rise then it's the bores/rings if it does not rise then the oil is escaping via the valves (bent valves,incorrect valve setting, pitted valve seats ect.
when you say you tweeted the cam timing could you enlighten us what exactly you did?

[Igor]

when you say you tweeted the cam timing could you enlighten us what exactly you did?

i kept the advance governor the same and moved both cams 1 tooth clockwise. so 20pins between them still but both just slightly advanced. If that makes sense