need help with a 910

[bustedcrank]

ok i put a carls 910 into a 06 iq rmk and now haven a hell of a time dialing it in if anyone has any suggestion i want to hear
i ride from 9000 to 12000. I went down to 8100 the other day and it ran great climbed up to 9600 and it strated choking real bad running half power
please help thanks

 

[sled_guy]

What pipes did you put on it and who cut them to fit the chassis?

Are you running an airbox? Is the timing advanced 4 degrees or left stock?

What's the history of the motor? What year, DET or not, etc.

sled_guy

 

[bustedcrank]

slp pipes and i think carls or slp did the cut it is the det
I am runnig a air box and do not know about the timing how would i check and set it
i do not know the year it is i think that its a 04 and built in 07 to the 910 my buddy whos sled it was went school in az and gave me the sled and he never had it running i put it together the way carls told me and it has the motor plate from holzs racing

 

[sled_guy]

What are you running for jetting, including which needles are you running in it?

Timing is set by turning the stator plate under the flywheel. Carl's recommends 4 degrees of advance.

But I'm betting it's a jetting issue. My 910 will handle quite a bit of extra fuel right up to a point, then it loads up bad.

sled_guy

 

[skippy]

ok i put a carls 910 into a 06 iq rmk and now haven a hell of a time dialing it in if anyone has any suggestion i want to hear
i ride from 9000 to 12000. I went down to 8100 the other day and it ran great climbed up to 9600 and it strated choking real bad running half power
please help thanks

I just had the exact same problem! Mine ran really strong on the trail as soon as I climbed one hill with powder it would load up with gas and foul plugs. Elevation was 7700' to 10500'. Did exactly what Carls cycle recommended for carb/clutch set up. What plugs are we suppose to use? I have BR9ES and I think it came with BR9ESG. Thanks

 

[bustedcrank]

alright i am a 420 mag and 410 pto for the jets and the plug ? i am not in the shop till tonight but will post it later tonight
thanks for the help

 

[sled_guy]

At 9000 feet and above you are at 410/420? You need to check the needles.

I run the '04 and newer ('03 Escape as well) needles. At 8000 to 10000 feet I'm at 380/390 with 20% av gas and that is spot on.

Run the champion plugs, 57YCC.

sled_guy

 

[bustedcrank]

ok were should the needles be at man i can t thank you enough for all the help

 

[sled_guy]

Again, mine is in an Edge chassis. I run at 8-11k in Utah.

380/390 mains, needle in #2, air screw 1 turn, fuel screw 1 3/4. You can't have too many vents in it and you absolutely need a good exhaust deflector.

Make sure you have the later needles if you use my jetting because the '02 needles are really lean. I'm also running bored carbs.

I don't know how this all translates to the 910 in an IQ.

sled_guy