Piston ring spring

[Tim Louth]

Hi all, question of the day regarding the 350 Sport K1. Can anyone explain why there is a spring behind the oil control ring on the front piston but no spring behind the oil control ring on the rear piston. Many thanks.

[MickeyMoto]

Sorry, cannot answer why, but the rings I bought before Xmas both had the spring. Apparently this is the way to go.

My K1 project didn't have a spring on both pistons.

[Tim Louth]

Did you put springs on both pistons?
I am in the process of rebuilding my engine and am not sure on the best way to go.

[3potjohn]

I cannot remember about this either but I should have a set of pistons removed earlier from the bike (which were new) and another set of barrels and pistons. I will have a look at them all when I get a chance.

[Tim Louth]

Thank you.

[Tim Louth]

My old pistons don't have a spring behind either oil control ring.

[3potjohn]

No springs on mine.
John

[Tim Louth]

Thanks.
After much thinking, which made my head hurt, I spoke to Chris from NLM and decided to go with springs on both.