Freak
TY 4 Stroke Junkie
Freakin main jet fell out in pto side carb. I cant believe it. A few years ago I broke off a main jet so I have been leary of putting them in too tight since. Too bad that most likely wont help anyone else who is having the lean prob.
I also jetted up to 142.5. Ran the sled in the field by my house and it ran better than ever. Perfect sound from idle to top end. Now I will have to go run it hard at altitude. Havent put the WB on yet, waiting for a the NGK gauge to arrive.
Im hoping that my lean cond is solved between the billet carb caps, jetting up and running all 4 main jets...
I also jetted up to 142.5. Ran the sled in the field by my house and it ran better than ever. Perfect sound from idle to top end. Now I will have to go run it hard at altitude. Havent put the WB on yet, waiting for a the NGK gauge to arrive.
Im hoping that my lean cond is solved between the billet carb caps, jetting up and running all 4 main jets...
Skydog
TY 4 Stroke God
Sweet Good luck!!!!!!!
spray25
TY 4 Stroke God
That's good news Freak. You had the first MCX that I had heard of that was having a lean problem in the midrange..... I wouldn't want you to encroach on Benders teritory! 
rxrider
Jan-Ove Pedersen
- Joined
- Apr 25, 2003
- Messages
- 7,355
- Reaction score
- 64
- Points
- 1,753
- Location
- Lakselv - 70N & 25E
- Country
- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
Freak - Are you running the MCXpress rear mount Mitsubishi 16T turbo? If you do please post your AFR readings.
Freak
TY 4 Stroke Junkie
rxrider said:
Yes I am for now. Will be changing over to a larger version of the 16T next week (19t.) New gauge is supposed to be here today. Got the Innovate gauge but decided to use the AFX instead since I run straight 110. I will post results after this weekend.
Freak
TY 4 Stroke Junkie
rxrider said:
Had a little trouble building big boost today. I think its a traction issue Ive been having while trying to keep the nose down. At high boost there was some lean popping although it was much less than I have had. Gauge read 13.6 at WOT. But when I ran the boost controller down to 14lbs my gauge read 12.5. Pretty good but still need bigger mains. Im thinking at 20+ lbs I will be over 150 mains. Idle is fine with the 20 pilots and midrange is acceptable. Idles at around 14.1 and it drops from there.
