Question about Harley Davidson XLH Sportster 883 Hugger Motorcycles
Drain the gas out of your carb. There might be dirt in it. Same thing happened to me.
Posted on Oct 23, 2012
The first thing I'd check is the fuel flow. Pull the fuel line off the carb and turn the petcock on. Watch the flow of fuel coming out of the hose to see if it's a good flow. Next, what type of exhaust system is on the bike? If it's got open drag pipes on it, the engine probably needs a bit more back pressure. The old Ironheads were notorious for having a "dead spot" at about 55 mph with open drag pipes. Most drag pipes have a hole on the backside for a bolt that held the baffles in them. If you have this hole, get a quarter inch diameter bolt that is about an inch and quarter long. Put the bolt into the pipe and thread three nuts on the bolt inside the pipe. Make sure the nuts are tight. Put one in each pipe. It's a cheap fix and works pretty well without changing the sound of the bike. Also, at about 55 mph, is where the carb changes over to running off the main jet in the carb. Your carb could be jetted wrong or have a piece of trash in the main jet. If the bike is running rich, it will run better with the air filter removed from the carb. If it's running lean, it'll run better if you roll back on the throttle like you said. I'd check all this stuff before I started buying ignition systems. That's an electrical part that the dealers cannot test and once you buy it, if it ain't the problem, they won't take it back. Harley Davidson ignition systems are pretty rugged and I've never seen a lot of problems out of them. That would be my last effort.
Posted on Aug 07, 2011
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Posted on Jan 02, 2017
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