Starting problems 426F

4 replies to this topic
  • inline6er

Posted February 07, 2010 - 02:42 PM


My 426F has ran awesome since I got it. I just rejetted the carb since it was bogging alot. Here are the specs:
444cc kit (13.5:1 compression) Stage 2 hot cams
Main Jet: 170
Pilot Jet: 45
Fuel screw/Setting: 1 turn out
Needle/Position: middle clip
Filter: UNI
Pipe/muffler: FMF power bomb and powercore
Altitude Range: 100
Temp Range: 60 degrees

Once the bike starts it runs great, however if I stall its almost impossible to get it started. When I first rejetted it ran great, thats why I think this may be an ignition problem. Any Ideas of what to check would be very helpful.

  • 642MX

Posted February 07, 2010 - 04:40 PM


Is your fuel screw set properly?... I run a 42 pj with the fuel screw somewhere around 1 1/4 turns out.

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  • inline6er

Posted February 08, 2010 - 04:54 AM


Hmmm, you have a point. Before I put the 45 in, it would start really easy. 2 or 3 kicks even when cold. Thanks for the tip. Looks like our bikes have about the same mods, so I'll take your advice.

  • inline6er

Posted February 08, 2010 - 03:57 PM


OK, change the pilot to 42, set the fuel screw at 1 1/8 and no luck. I will try to mess with the ignition system and check the compression. Hopefully can find something cause I wanna ride next week.

  • s14 2510s

Posted February 09, 2010 - 04:01 AM


I run a 48 PJ in my 444 but its an ice bike.

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