Help 04 ec300 wont idle

[nmhinton]

I just picked up an ec300. It starts fine with choke, but then as it gets warm I start to smell antifreeze and it won't idle any more (my thinking is that it's
hot and lean, but then again it may be rich?). What jetting should I have as a baseline for wisconsin in the summer? Under 1k elevation 80deg.
I don't have much 2stroke experience.
I'd appreciate any thoughts you might have.

[Eric K]

Opinions on jetting vary. I found that optimal jetting is different between my '01 XC300 and my '06 EC300.

If you just want to buy a solution try the LTR jetting kit or the RB designs carb mod. With the LTR jetting it will require some fine tuning. The RB designs carb mod is pretty much install and ride.

If you like to jet it yourself, read the jetting database and the various posts in this section to get ideas on what works for different riders.

[nmhinton]

OK guys, I checked out my setup...I'm running a 175mj, 40pj, #7 slide, fuel screw 3 turns out. I'm running 40:1 premix ratio.The bike smokes like a chimney and doesn't want to idle when warm. When I run the carb out of gas, the rpms run really high. It seems to me that would indicate richness, but the PJ seems smaller than what most are running. I'm confused. Anyone else have ideas? Thanks.

[Eric K]

The needle is a key component in getting good jetting. What needle do you have?

[J D]

Smell antifreeze - hasn't got a blown head gasket has it? Are you losing coolant?
Is that smoke really steam?

Good Luck with it.

I just picked up an 07 EC300 myself. Must say I'm impressed.

[rpduc]

What about your impeller? Supposedly a "weak" link on these things...

LTR makes an alloy impeller that is supposed to improve cooling.

Bad radiator cap?

I found this jetting info very informative. Pobit is in MN.

http://www.gasgasrider.org/forum/sho...9&postcount=27