Quote:
Originally Posted by BEEFKING69
Backfire turned out to be spark plug wire loose at the plug...But stock airbox has been taken off and its got nothing but a piece of radiator hose turned down atm till i can get a uni filter etc. Plug was black last night after a few rounds around the house.
New problem tho is its puking oil out of the air exit in the shroud and if you take the dipstick out right after you shut it off it just blows oil everywhere
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Sounds like your crank case vent is blocked, it needs to vent. It was probably originally routed through the stock airbox. Someone probably blocked it off when they removed the airbox.
With no air cleaner you probably wont get it running right, get an air cleaner on it and jet it accordingly.