band1t Posted January 30, 2013 Report Share Posted January 30, 2013 Hey all, After 5 months of sitting I finally got to fire my 4 mil engine. I had the bike idealing cause I can't ride it yet due to the chain sitting on the shelf. Now got some probably common question to ask. How long before I can really get into pushing the engine? 1 hour of putting, 2 hours? Why does it have a flat dull sound instead of the bing bing the stock engine had sound? The shop who built it plugged in a fat jet, is this ok to run? It smokes a lot heavier than when it was stock. I have 32:1 in the tank. FMF pipes they came with the bike, the money is not there to upgrade to some thing better. Did the 4mil really make the bike go from 40hp to 60hp? Thanks Quote Link to comment Share on other sites More sharing options...
Colby Posted January 30, 2013 Report Share Posted January 30, 2013 if theres no leaks (mainly an air leak) and your jetting is rich, you shouldnt have any problems running it WOT atfer a thorough warm-up... be sure and do a WOT plug check/chop .. a 4mil+ porting will put a bike from 40-60 yes Quote Link to comment Share on other sites More sharing options...
band1t Posted January 30, 2013 Author Report Share Posted January 30, 2013 Ya know I don't know what size a fat jet is, But the guy said he Plut a fat jet in the carbs And for another $160 I can bring the bike in to be ran on his Dyno To tune the carbs. I live in the country so I guess you can say I am dirt roads rider, Yes the local cop has told me As Long as I am not being wreck less and stupid he doesn't care. Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted January 30, 2013 Report Share Posted January 30, 2013 by any chance did you get bigger carbs then stock? i noticed awhile ago when i went from stock carbs to bigger ones the bike had a lil bit of a deeper tone Quote Link to comment Share on other sites More sharing options...
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