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Old 08-19-2015, 09:03 PM
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Davezilla Davezilla is offline
Motorized Bicycle Elite Member
Join Date: Mar 2014
Location: San Antonio Texas
Posts: 2,710
Default Re: Quick question about running rich.

Just gotta remember that extra fuel is there to help keep things cool during the break in period, but it's probably safe to drop the needle down a notch and jet down one size since these things are so crazy rich right out of the box. You also need to consider any aftermarket add on like free flowing air filters, x chamber pipes etc... basically anything that let's the air get in or out easier can require a jet size up to run proper as well. There are a few reasons not to tune during break in but if you do, just be sure to keep an eye on your temperature or keep the trips short enough that the engine can't get that hot.
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