2001 Ec300 Does It Have A Top End? New To Gas Gas

[Eric K]

Originally Posted by MXR

Thanks Ian, Jeff, Widebear, and Erik.

I've got a stock Gas Gas pipe. It does have a 1/2 inch deep ding in it, I don't know how much that will effect the power. From all of your posts, I'm thinking it probably is the powervalve and jetting. From what Eric was saying, I should be getting a more linear progression of power through the top end, instead of it just signing off after the midrange. If you guys think the ding in the pipe is a big deal, and my jetting isn't the LTR set up, I might just get that Power package that has the Doma pipe etc. How much difference does that Power Valve Cover from LTR & their jetting kit make? Also, will aftermarket reeds make a big difference? If so, what brand is best?

Where is the ding? If it is in the header pipe, then you might notice a difference. If it is in the cone sections of the pipe, then you would not really be able to tell a difference.

The Doma pipe is nearly identical to the stock GG pipe.

The LTR power valve cover helps low end to a moderate extent. No effect once the power valve is open.

Before you start spending big dollars get your jetting set up correctly. For starters read what others have run for jetting in the jetting section. Try some of the common settings and see if they work for you. LTR jetting works well for many people.

[socalscott]

Prolly reeds. You getting a ratty sound instead of on-the-pipe hp?
There's only brrr-rat, instead of braaaaa?

My bros. 04 EC has the same lack of upper mid to top hp. He's running
a Doma, LTR jetting and PV cover. PV's are working.
Gonna slap some new reeds in this afternoon. He also machined the head
down aboot .015" to correct previous uneven hack job! Squish gap should
end up over .060".

[socalscott]

Badda-bing...reeds, reeds, reeds. They were wasted. Check them
immediately.

Shockingly, the RAD Valve bodies reed contact surface was extremely
pited, it required a rough file, fine file and finaly a lapping stone!

Now she pulls and pulls up top after installing some Boyesen ProLites and
a squish gap of .053". Compression is still a low 130lbs.! but bro. already
planed for a piston anywho.

It's my ride for Saturday, so I'll treat it to high dez goat trails and hill climbs.
I'm gonna be sore, as I'm used to KTM 200 power.