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Still havin carb issues!

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Problem is this:

At lower speeds when technical riding unless I keep my revs up I get an annoying hesitation/poping when trying to accelerate that can cause a stall. This typically happens more as the bike gets hotter 240-260deg. range.

I ride normally at elevations from sea level to 2000ft

Bike is an 03 xr 250

Some"symptoms":

My plug color is black no tan at all but it isn't wet.

Fuel screw is 1.25 turns out (any higher hesitation gets worse)

Jetting is stock 45 p 132 m needle stock 3rd clip

Mods

Airbox snorkel out

Highflow filter cage moose racing filter

I am thinking I am too rich and need a 42 pilot. A honda mechanic thinks the opposite and thinks 48 pilot. ??

Anyone with similar issues or a thought on how to correct this?

Oh and starting when cold isn't too bad but when hot it can be a real beast!

Other than the carb on this bike... It is the best bike I have ever had! The thing just keeps on going and going! :thumbsup:

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I agree with your thinking. A rich pilot will cause hard starting when hot. I'd go for the 42 pilot as well.

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Thought I would give some initial results with a 42 pilot jet:

It starts 1st kick with no effort! :ride: ...that never happened before! I have just put the jet in and set the fuel screw 2 turns out. The bike now wheelies in second gear with stock gearing! Another 1st! :thumbsup:

I will be taking it out tomorrow to get the bike warmed up properly and finalize my adjustments. I am keeping my fingers crossed everthing is good.

I will post my results for those with interest and/or similar issues.

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