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Old 06-13-2008, 12:06 AM   #1
mike616
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Angry HD 1200c sportster

Just pick up a 98 HD,theres a pinging sound in 1st gear,it seem when it get hot?or is it the gas?and were MC made for 10% crap there putting in our fuel.\::


Thanks
Mike
Plambay Fla.
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Old 06-13-2008, 01:12 AM   #2
The_AirHawk
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The "10% Crap" as you put it (Ethanol) is not what's causing the pinging.

Not that I have a good opinion of the Ethanol-Corn Industry.

How old is the gas you've been using? Where did you get it from - the corner stop-and-rob that has a fuel-truck in there twice a year whether it needs it or not, the same can you fill-up the mower with, what?

Has there been any work done to the bike? Any "hotrodding" of internal components? Performance cams? Does it have an aftermarket spark-advancer installed? If so, perhaps it now requires a higher-octane fuel to run without pre-ignition. Mild ping due to pre-ignition won't hurt the bike, if that's what you're wondering.
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