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Hinckley Classic Triples 885cc Classic Styled T3's: Legend, Thunderbird, Thunderbird Sport & Adventurer.

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Old 11-29-2012, 11:39 AM   #1 (permalink)
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Crankshaft Position Sensor

Gentlemen,

I am having the issue when my bike is warm it acts like it is running out of gas. It will cruise at a consistent speed, but under acceleration the rpms drop and the bike struggles. Its a 2000 adventurer with 30000 miles. I think it is the crankshaft position sensor. Where do I buy a new one?
thank you
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Old 11-29-2012, 01:18 PM   #2 (permalink)
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From a Triumph dealer.

http://www.worldoftriumph.com/

As good as it gets for mail order.
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Old 11-30-2012, 10:41 PM   #3 (permalink)
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Another really good place to do mailorder business with is Baxter Cycle:
http://www.baxtercycle.com/
They almost always have stuff in stock and will overnight to you if you ask.

Are you sure it's the crank sensor? Usually the adhesive on those gives out and they just fall off, leaving you with *nothing*. Your description sounds more like failing coil to me. Or fuel starvation...

Last edited by petermholmes; 11-30-2012 at 10:51 PM.
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Old 12-01-2012, 07:28 AM   #4 (permalink)
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Sounds more like a fuel starvation / tank vacuum issue to me ? (..will cruise but not accel...)

Unscrewing the tank cap can determine or eliminate tank vacuum/breathing.
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Old 12-01-2012, 09:58 AM   #5 (permalink)
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I am a 100% triumph novice,but mine is held on by 2 torc bolts correct?
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Old 12-01-2012, 11:30 AM   #6 (permalink)
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Last I knew the pickup coil was glued to the bracket.

I'm with Mike. Once it's started giving you grief, keep riding but unscrew the gas cap until it's loose and see if your problem goes away. If so, the tank vent's plugged.
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Old 12-01-2012, 01:06 PM   #7 (permalink)
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tried the gas cap trick. If it were plugged wouldn't i hear air rush in I unscrewed the gas cap while the problem was happening to see if it would help but no luck.
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Old 12-01-2012, 02:09 PM   #8 (permalink)
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Check tha air gap on your sensor. Don't guess at things you'll drive yourself nuts.
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Old 12-01-2012, 02:25 PM   #9 (permalink)
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The problem only occurs once the bike is warm? You can give it full throttle when it's cold and it accelerates normally?
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Old 12-01-2012, 03:26 PM   #10 (permalink)
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Well, you've eliminated tank vent, but I still think fuelling (which could include squatters in the airbox etc). When the CPS fails as the engine warms up, the bike will not run at all until the engine fully cools. It's either this mode of failure or complete no-start, don't recall any others reported.
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