2000 550 trail rmk

T

tracker

Free Member

Dec 12, 2007

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• Feb 19, 2011

• #1

My son rides a 2000 550 trail rmk. Great sled, but it loads up terribly at an idle. We ride at approx. 10500 ft. Needles are dropped nearly as low as they go. (1 notch up from it) I would like to figure this out, but am scratching my head on this one. Jets are 270s that are in it. Any advice would be great!!!

 

M

McLaughlin_7

New member

Oct 12, 2009

106

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18

S.E. South Dakota

• Feb 19, 2011

• #2

what carbs do you run on it

 

T

tracker

Free Member

Dec 12, 2007

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6

• Feb 21, 2011

• #3

They are the mikuni carbs that came on the sled. it also has the accs compensater.

 

X

X2Freeride

Well-known member

Jan 25, 2009

1,546

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• Feb 21, 2011

• #4

Sounds like the ACCS is on its way out. This is typically what they do when they start to go bad.

 

R

retiredpop

Well-known member

Lifetime Membership

Jul 3, 2001

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Calgary

• Feb 21, 2011

• #5

I would reduce the pilot jets down at least a couple of sizes if not more for that altitude. At idle there is not enough vacuum created to allow the ACCS unit to function properly. On my 1999 RMK600 which has ACCS I dropped the pilot jet from 50 to 40 which was 4 sizes I think (Keihin carbs) and it ran much better at idle. Your jet needle really does not affect the idle. The jet needle comes into play from 1/8 throttle to 7/8 throttle.