Need Help With My Rm250!!

[Ron2stroke1]

i am new to the forum and i am curently re-doing the top end on my 1997 rm250 and i need some info:
1)What are the torque specs for the cylinder head and the cylinder base bolts?
2) How do i get to the cylinder base boults to torque them down(cant get to them with a torque wrench)?
3)what are the power valve spring tension specs?

Thanks

 

[xkevenx]

just tighten them with feeling but dont over do it! and always tighten one bolt and the opposite one next... and when the bike was warmed up a time re-tighten them. the powervalve spring is something i dont know. when i opened up mine i just turned it in till i could shift it with my hand inside the exhaust port. or you can ask a dealer or you can ask a friend or so who has a book of your rm....

 

[hot125mod]

the head is 18 and the base bolts are about 20 or 22. you need a motion pro wrench to get the nut inside the powervalve cover onthe right side it has a cut out in the middle to put a torque wrench in.the powervalve is 1 turn dont go past about 1 1/2 or it puts too much tension on it.

 

[Ron2stroke1]

18ft/lbs that seems a little low dosent it???