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Join Date: May 2011
Sorry, but I have to do it.
5100 original miles
Vance & Hines Cruzers exhaust
Bike was coastered by previous owner. Also, when I took the seat off I noticed a large hose plugged with what looked like a broom stick handle with a hose clamp on it!
I seated the carb screws and backed them out 3 full turns each
Bike runs incredible but pops out of the exhaust like nobody's business at low speed deceleration or downshifting.
Bike has no vacuum leaks that I could find.
New plugs and battery
Gas is questionable though. It had 1/2 a tank when I got it. Previous owner thinks he put seafoam in the tank but couldn't recall.
I filled it with 92 octane.
A few of my buddies told me to run that tank down to nothng and put fresh gas in it and see what happens before I start tearing into the bike to figure out why it is popping so much.
Any suggestions on anything I might be overlooking?
Who knows what he PO did, but if the coasters aren't properly sealed, a leak there will also pop on you.
FWIW, my stock pilot screws were 2.5 out on the front and 3.5 turns on the rear, so just because you're at 3 turns out doesn't necessarily mean that it's sufficient.
Try 3.25, 3.5, 3.75, etc. Once you hit 4 turns out, it's time for bigger pilot jets...
EDIT: Popping is an indication of a lean mixture. Popping on decel means it's popping when the throttle is closed...i.e. pilot circuit...ergo more turns out on the pilot screws. Oh, and ditch the 92 for 87. Keep your baseline solid w/ the fuel until you're comfortable with everything being set right before fiddling with fuel octane. And these bikes have no need for anything other than good old fashioned 87...
'98 VN750, Mustang Seat, F&S Engine Guards, Highway pegs, Pro-Tac backrest, Harley 58121-85B windshield lowers, Autometer 3391 voltmeter, ACCT to MCCT, pickup coils at 0.020", Coasters, National Cycle N2220, Vista Cruise Universal, Single Filter Ear Shave, Givi Monokey Sidebag Mounts, Givi E21 side bags, Knifemaker style turn signal relocation, helmet locks relocated.
Last edited by abyssdncr; 06-13-2011 at 12:56 AM.