valve question

[Big red 200es]

Now I put the valve in my 125m. I a few question.

It is normal only one valve have seal ?
If yes does this model of 3wheeler burn oil ?

Does it have an oder way to put the vale without a spring retainer tools ?

Thanks
Nick

[Danold]

Yea the intake should have a seal but some engines do not use a seal on the exhaust valve because the exhaust has negitive pressure so any oil going past the valve is blown out without getting burnt.

Valves can be put in/out without one but it is alot easier to have the tool. You can make one with an old c clamp and a welder if you dont want to buy one.

[Big red 200es]

ok but the seal is on the exhaust side.

So it is ok ?

[Danold]

as long as you have one on hte intake side its fine.

[Big red 200es]

ok but I think is normal in the kit of gasket he have only 1 valve seal and it goes on the exhaust side. I cant put a seal on the intake side.
So does anybody have a 125m 1984 an he can confirm me its ok ?

[Danold]

http://www.yamahaoftroy.com/fiche_section_detail.asp

This shows that there is a seal on each side.