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Andre Pilon
Andre Pilon, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 1032
Experience:  Over 25 years experience, ICS, MMI, Owned shop for 12 years, worked tech-support for Harley Davidson
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WHAT CAUSES A CLUNKING OR KNOCK SOUND..STARTING MY HERITAGE

Customer Question

WHAT CAUSES A CLUNKING OR KNOCK SOUND WHEN STARTING MY HERITAGE UP RUNS AWESOME ONLY THAT NOISE
Submitted: 6 years ago.
Category: Motorcycle
Expert:  Andre Pilon replied 6 years ago.

hi,

Are you talking about a starter clunk/knock? What year is the bike and how many miles?

Customer: replied 6 years ago.
2008 HERITAGE 14,000 MILES RUNS GREAT JUST BOUGHT IT SEEMED ABUSED NOT A HARD CLUNCK MAYBE A KNOCK JUST WHEN STARTING UP AND NOT A LL THE TIME
Customer: replied 6 years ago.
POSSIBLE STARTER CLUNCK
Expert:  Andre Pilon replied 6 years ago.
it's hard to say without hearing it? Is it only when you press the start button? once started it's fine, no noise?
Customer: replied 6 years ago.
CORRECT POSSIBLLY TIMING? OR LOWER END TROUBLE JUST THOUGHT IF ENGINE TROUBLE OR KNOCK IT WOULD BE ALWAYS THERE CORRECT
Expert:  Andre Pilon replied 6 years ago.
yes you'd hear it when the engine is running. Does it only clunk when you press the start button? once started it's fine, no noise?
Customer: replied 6 years ago.
THAT IS CORRECT ONLY WHEN YOU HIT THE ATRTER BUTTON ONCE RUNNING DOES GREAT RUNS GREAT IDLES GREAT
Expert:  Andre Pilon replied 6 years ago.

any mods done to the bike? what size engine? This usually happens on 103 without decompressors.

Customer: replied 6 years ago.
NOT SURE ITS A 96 INCH
Expert:  Andre Pilon replied 6 years ago.
is your bike still under warranty? if so, i'd take it to the dealership to have it inspected. If not, i'd make sure all starter connections are clean and tight.
Expert:  Andre Pilon replied 6 years ago.
loose connections cause a voltage drop which would cause the starter not to engage properly, or hesitate, knocking on the ring gear teeth not being strong enough to engage into them, causing a clunking noise.