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EFI Sportster Motorcycle Talk (2007 and up) For 2007 and above Sportsters

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  #1  
Old 9th June 2009
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Default Belt Replacement

Any idea on when to replace the drive belt? I heard a rider was thrown from their bike after a couple of teeth broke off their belt going down the highway.
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Old 9th June 2009
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Sounds like nonsense to me, belts do break, and quite a few have broken prematurely, usually when the bike is cold and put into gear. I would think a belt should last at least 30,000 k.

Here is some good bed time reading on the subject
http://xlforum.net/vbportal/forums/s...ad.php?t=14871
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  #3  
Old 9th June 2009
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Best advice I can give you is to check the condition and adjustment of your belt everytime you check your tire pressures. Unless you get a rock or something similar thrown up between the belt and sprocket, your belt should last for MANY thousands of miles. I've never had a problem with any of my belts. I'm on my 4th Harley.
I had a shaft drive come close to locking up on a Suzuki once. but that was a manufacturer's defect.
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Old 9th June 2009
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Yup, sounds like BS.

Personally, I've never broken or had to replace a belt. I think that if you don't abuse em, keep em tensioned properly and inspect them for wear you'll be fine.
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Old 9th June 2009
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I've got 35,000 kliks on my bike and the belt looks as good as new.
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Old 9th June 2009
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There are numerous threads on this subject, a few people have had repeated problems with belt breakage. The rest of us rarely if ever have a problem with it, even those of us pushing over 90 HP that repeatably do wheelies and burnouts. keep it adjusted properly (but not too tight) and you will probably never have a problem.
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Old 9th June 2009
Oldwrench Oldwrench is offline
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Default Belt Life

Over 30,000 miles on mine, and I'm not gentle. I don't run on rocky roads, and I don't dump the clutch on a wet belt, like after washing.

Properly tensioned and barring rock or debris damage, these belts will easily go over 100,000 miles. All it takes is one rock caught between the belt and wheel sprocket to over-stress the belt. I don't ride in rocks.
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  #8  
Old 11th June 2009
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Quote:
Originally Posted by Oldwrench View Post
Over 30,000 miles on mine, and I'm not gentle. I don't run on rocky roads, and I don't dump the clutch on a wet belt, like after washing.

Properly tensioned and barring rock or debris damage, these belts will easily go over 100,000 miles. All it takes is one rock caught between the belt and wheel sprocket to over-stress the belt. I don't ride in rocks.
yup, not too long ago i was riding on a gravel road (caused by road works) about 60km/h... and for a split second i heard a harsh metallic sound - i believe a small rock got caught in the pulley. After inspecting it at home, i noticed a half of 1 tooth chipped away in the belt.
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Old 28th October 2009
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Just finished installing Hi Comp pistons, Cams, intake, exhaust, and Thunderslide last month. Snapped a belt on Monday at just under 14k miles.
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  #10  
Old 29th October 2009
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after reading my service manual, i dont see where a specific mileage is given. but it shows several conditions to watch for on the belt and describes whether to monitor or replace. basically, external tooth cracks, missing teeth, hook wear and stone damage..states to replace. hope this helps
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