M motolink Member Apr 15, 2004 84 0 Mar 21, 2005 #1 Anyone got the right MX jetting for the 04 RM 250, mine is standard except running two base gaskets.I race mx. Sea level temp 70. Does leaning the high speed riching jet improve the top end power ?.
Anyone got the right MX jetting for the 04 RM 250, mine is standard except running two base gaskets.I race mx. Sea level temp 70. Does leaning the high speed riching jet improve the top end power ?.
bclapham LIFETIME SPONSOR Nov 5, 2001 4,340 0 Mar 21, 2005 #2 motolink said: Does leaning the high speed riching jet improve the top end power ?. Click to expand... usually when you lean the main jet, you make more topend and overrev. since you have the 2 basegaskets, the compression should be a bit lower so you have to room to lean it. i run a 162 main on mine with no detonation on pump fuel.
motolink said: Does leaning the high speed riching jet improve the top end power ?. Click to expand... usually when you lean the main jet, you make more topend and overrev. since you have the 2 basegaskets, the compression should be a bit lower so you have to room to lean it. i run a 162 main on mine with no detonation on pump fuel.
M motolink Member Apr 15, 2004 84 0 Mar 21, 2005 Thread starter #3 I am running a 168 at present , will gi down to a 165 and test. thanks