Question about Suzuki VL 1500 Intruder LC Motorcycles
Sputtering or popping through the carburetor as well as high idle is typically associated with an air leak (bad gaskets/intake manifold) on the intake side of the motor. The backfiring through the exhaust is also associated to leaking exhaust pipe gaskets in the head and some times the head pipe to muffler gaskets. Cleaning the carburetor is always a good idea when experiencing running problems. My guess is that the mechanic reused the gaskets on the motorcycle allowing the problem to get worse . He could have accidentally fixed the popping problem by putting in new gaskets and manifold and had a happy customer with out the time saving short cut.
As for the new sound like an alarm clock with no bell, Your motorcycle is equipped with hydraulic lifters. This problem is probably unrelated to your dealer experience. They should have been able to diagnose or test it for you. The number one reason you would have a clatter or clicking would be if an automatic cam chain tensioner went bad. But from your description (the number two reason) you probably have a hydraulic lifter that is stuck or not holding pressure. When a hydraulic lifter does not zero tolerance itself the way it is designed , you end up with ticking or clattering. This was a common problem in 1983 when Honda first put hydraulic lifters in there Shadow 750. But because of better quality control and better materials this clacking lifter problem is one that most newer mechanics have not seen. It is rare but I suspect you have a lifter gone bad. Remember to only use JASO MA certified motorcycle oil. Do not use any oil that says Energy Conserving. Synthetics help your bike run cooler and shift easier which would also help sticking lifter issues. I do not believe fuel additives will do any thing for your situation except preserve your fuel for long storage.
Posted on Oct 24, 2010
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Posted on Jan 02, 2017
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