Specifications

stalling then grab a big handful of throttle. You don't need absolute full throttle like for

the main jet tests, just a good sized handful. This will reveal if you've cured your flat spot

and, if you've gone up several sizes and get some stumbling, that you've gone too big

on the pilot jet size. Once you have the pilot jet size narrowed down, there's another test

you can perform. Ride around in a parking lot in about 2nd gear with the throttle just

barely cracked. Watch for minor surging (too lean) or rough running and stumbling (too

rich). You may be able to correct this with your mix screw setting or you might need to

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