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View Full Version : 250R jetting



Ndog
04-01-2006, 01:55 AM
Allright, everything has failied. I cleaned my exhaust manifold, my expansion chamber, repacked my muffler, compression tested 175-180 psi, brand new air filter, running lid off, carb clean as a whistle and still running like chit off idle untill powerband kicks in top end.

Help me, I am running a 130 main and a 52 pilot with the needle all the way down(clip all the way up). Wide open chops are tan but anything else black and wet. Running 40:1 redline with 93 octane. My pilot is stock. From what I have read, 130 is crazy low. What the hell is going on. I have even tried moving my float heght so that less gas stays in the carb. Also have even tried turning the air screw all the way out. Why am i so rich and what pilot should I go to? If I turn the petcock off it runs crisp and awesome before it dies.

Help me!!!!!!!!!!!11

MTS
04-01-2006, 02:02 AM
Go down 2 size's at a time on your piolet.....also this a 86 with the flatslide Pj? do a search....theres a Good thred on how to set the floats about as good as there going to get with tthat carb..

TimSr
04-01-2006, 11:35 AM
Have you done a compression check? Everything you describe is classic for a top end being worn out.