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Never drill jets and do remember that most aftermarket jets do not flow correctly. Order required jets as your checks tell you. If you notice an improvement in one direction, keep changing to the next jet size in that direction till the improvement stops and she drops off the mikuni pocket tuner pdf downloadthen go back one. Nothing else other than the pilot jet has an effect at idle.

Easy Kit Installation Instructions. pockef

At wide open throttle only mlkuni main jet is working so these are also very easy to tune with a few jets and a bit of spare time. Remember the tuning order is — idle circuitthen main jet and then finally mid range. Change and test with the next size jet both up or down to determine weather an improvement can be obtained and in what direction.

Never change main or pilot jets to try mikuni pocket tuner pdf download correct a mid-range problem.

If the jet is wrong, either having no stumble in one direction or the mikuni pocket tuner pdf download point being out of the range this will let dwnload know that a jet change is required and weather you need to order richer or leaner jets. If at all in doubt, see your local tuning shop. Once having made a change its back to the middle clip position and start all over again.

Total Kit Installation Instructions. An inability to tune out a problem in the mid range will indicate downkoad the needle profile is not matched to your engine or a slide change may be required. Then count the turns from this point to bottoming out, if you ttuner less than 3 and more than 1 complete turns to achieve bottom, the jet is correct and you simply wind back to the centre point.

For tuning procedures we have a number of manuals available to the left.

Sudco Mikuni Carburetor Parts And Tuning

The performance changes can be detected at wide open throttle in low gears- we do not recommend the operation of motorcycles over the speed limit. Some engines will actually have two size jets that may fall within the spec in which case see which feels better when riding, generally the richer one. If improvements appear in one direction of adjustment but perfection is not achieved whilst having reached the end clip on the needle, then you will need to install a richer or leaner needle if available or else a corresponding needle jet.

This is perhaps one of the best written book on carb tuning, just ignore the accelerator ppdf section if using a non pumper carb mikuni pocket tuner pdf download remember mikuni pocket tuner pdf download the mixture screw is an air screw where as on carbs with the screw located behind the bowl it will be a fuel screw in which case winding out is to make richer not leaner.

By following the procedures in the book you will determine if poclet need changing and in pockft direction. Mikuni Carburetors should be replaced, repaired or tuned by the selling dealer, or a mikkuni or qualified mikuni pocket tuner pdf download mechanic. This marking on a jetting part is your quality assurance guarantee it is a genuine Mikuni component.

Please positively identify your jet type in the jets section, as all jet sales are final with no refunds. Generally if you have the right profile needle for your engine, a difference in performance and response can be detected by raising and lowering the needle.