I read somewhere that Gasgas models 2010 and newer already have a two piece head. Does that mean I can just buy a low compression insert without buying an S3 head? Does GasGas make a factory option or is it just aftermarket?

Will an S3 low comprehension insert work with my factory head?

Thanks.

YES !

The original (factory) inserts are also made by S3 so no problem

Great. Thanks!

Try a flywheel weight as i found that did more than the head insert. I run with both and its smooth my bike out no end.

Try a flywheel weight as i found that did more than the head insert. I run with both and its smooth my bike out no end.

That may be next.

The low compr. insert combined with a slow throttle on my 280 suits me very well

I like the low comp insert & flywheel weight on my 2010 280 Pro. The head made starting only slightly easier, but the two mods combined well to really smooth out & slow down throttle response. Plus, that head insert allowed my bike to run on non-ethanol pump premium; no more having to buy race gas!

Guys, I think I'd get along with the slow throttle if I'd never have broken my right wrist. I have really limited flexibility in that wrist, and with the "slow throttles", can't get full throttle when it's needed. Which, if I'm honest, is very seldom at a Trial or while practicing..... Revving the bike to clear out the engine is probably the only time my bike sees full throttle.....

Jimmie

Edited November 17, 201312 yr by mr neutron

Revving the bike to clear out the engine is probably the only time my bike sees full throttle.....

Jimmie

Which is much better than having it see full throttle after a crash! But that's a different thread entirely.....

For something different- I put the high comp. insert in my 12 300 Raga and love it.Very smooth,manageable power and easy to start.No hit anywhere.

FYI, Don't assume anything by year, on gasgas necessarily, look at pictures of the 2 piece heads to verify you got one. the head is usually different color than engine paint, and where the spark plug goes the "insert" shows through, they are anodized colors, seems gold is low compression, silver is std, I think red is High?

FYI, Don't assume anything by year, on gasgas necessarily, look at pictures of the 2 piece heads to verify you got one. the head is usually different color than engine paint, and where the spark plug goes the "insert" shows through, they are anodized colors, seems gold is low compression, silver is std, I think red is High?

That's right.