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Posted by Tfrank59
- March 16, 2016, 13:50:56 PMI'm not a mechanic so I'm kind of going out on a limb here – can you replicate the problem without going 65 miles an hour in 5th gear? In other words is it when it hits a certain point in the RPM range the problem occurs, so that you can better diagnose it maybe in your driveway in neutral or on a side street in second gear? I'm just trying to help you get a handle on what's going on with your engine, since diagnosis is what's needed and doing that on a freeway ain't very safe. Good luck, ride safe, and let us know what you learn.
Posted by oldschool
- March 16, 2016, 12:08:32 PMI ride a 02 800 drifter. I Grampsized the bike when I bought it used. Runs great except sometimes when I am riding in 5th gear at 65mph, the bike sputters and coughs. Once the engine died but started back out after I pulled the clutch in then back out. I changed the plugs. Old plugs only had 3k miles, looked ok. I put Roadburner dual exhaust on it. I noticed the baffles are black were the exhaust exits the pipes. Might be running rich. Anyway, I have read on forums it could be the battery, it could be the kickstand switch, fuel tank venting etc, etc. One guy changed battery, fixed the problem. One guy ran irodium plugs, fixed his problem. I want to know if Grampsizing has anything to do with it. I also heard maybe I need a new fuel pump. To many maybes. Has anyone on this forum had this issue and if so, what was the fix.