Question about Motorcycles
Suggest you re-tension the head studs as the heat of a hot motor is probably allowing them to stretch just enough for the compression gasses to leak out. Use a tension wrench for this operation.
Posted on Jul 17, 2013
Testimonial: "The noise really seems to be coming from the lower part of the motor; around where the crankshaft is located. If gases were leaking out, would the sound be coming from so low on the motor? I assumed the sound would be closer to the heads. Thanks for the help."
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Posted on Jan 02, 2017
The sprag clutch that kicks the starter gear into the flywheel is not engaging. This may involve splitting the engine/transmission case if you have to clean or replace that mechanism. I have had success running CD-2 as described here. You might try that before tearing into the bike.
Posted on Mar 19, 2009
I had a similar situation with a Harley once that turned out to be a broken front motor mount.
I do not work on many Harleys, but I was told that it was a fairly common problem with that model.
Maybe that will help, maybe it wont.
Posted on Nov 24, 2008
I have a 2000 Vulcan Nomad FI & had a very similar problem. In fact, it's a very common problem with these bikes. I fixed it by replacing the Clutch Spring. (As Described here: http://www.gadgetjq.com/clutch_spring_replacement.htm
It cost me $40 and 3 hours of time with an impact wrench.
Posted on Jan 26, 2009
Change out the gas to a higher octane and do not use gas with ethanol. This sounds like engine knock > translated; pre-ignition of the fuel in the cylinder. This is not a good thing to have. It is hard on the crank and even harder on the piston. If the problem does not go away after a tank or two ask the dealer to check the engine timing. Also check gearbox oil level. Low oil creates heat and heat promotes detonation aka pre-ignition.
Posted on Mar 12, 2009
If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..
Posted on Sep 14, 2009
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