Quote:
Originally Posted by maverick9611
2008 250r
carb:keihin 100's
uni filter snorkel removed
needles stock 3 washers shimmed
air mixture 3 ish elevation 330 ft
stock header with ali cheapo slip on
bench carb sync per ghostt. pulls hard to redline. tried 2 washers but lean in mid range. all plastic back on and will check fuel mileage. all carb screws replaced with stainless m4 socket head. internal fuel filter inline canned, replaced with 5/16 fuel line and visual fuel filter. kleen air system canned/removed>plugged
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updates airbox removed, k/n pod filter,stick coils added, new plugs gapped to .030(nippondenso iridiums)pods-with stock airbox runners(v stacks coming)
factory pro jet started with 110’s
clip 3rd from top
40 pilot jets
not pulling cleaning on top end starts around 10,500
tried 112’s and 115’s same effect.
did valve check and reset floats to 15.5 mm
(had to reshim a couple of exhaust valves)
put 110’s and retried. ran better on top end but still struggling. this is where i disagree with factory pro on setting mains first.
put needles to notch 4 and leaned out pilot circuit.
ran cleanly to 13000, slight hesitation but nothing like it was. i did not realize the needle circuit has significant overlap. will button it up and ride to check fuel mileage and drivability.