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Ford 9N, 2N & 8N Discussion Forum
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VERY OT Dirt bike starter

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Rob N VA

03-23-2005 20:31:47




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Sorry for the OT, but if anyone can help me, you guys can. A while back I picked up a yamaha tt500c dirtbike. It is old and does not run. It has REALLY good compression and ok spark. I found out really quick that I hate the kick start and would prefer an electric starter. Is there anyway to convert to electric start? Can anyone point me in the right direction? Any help would be appreciated. Thanks!!--Rob

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dr.sportster

03-24-2005 15:39:01




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 Re: VERY OT Dirt bike starter in reply to Rob N VA, 03-23-2005 20:31:47  
I am a bike mechanic by trade[one of them anyway]I have worked at a Harley =Davidson ,Yamaha dealer.The answer is no.But you can move to hill and roll start it.



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CraigF

03-24-2005 10:44:17




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 Re: VERY OT Dirt bike starter in reply to Rob N VA, 03-23-2005 20:31:47  
You *might* be able to adapt something from the newer XT600 engines that have electric start, but unless you've got a machinist working for free and can get your parts for next to nothing, you'll probably quickly spend more than the TT is worth. I'm only guessing that there's enough similarity in the engines to make that a feasable idea, as I'm not that familiar with the big Yamaha four stroke singles.

It would probably be easier to install the XT600 engine (AFAIK, the 660 in the Yamaha quads is based on the same motor and has e-start as well) in your TT, but then if you've got the donor XT, why not just stick with it?

Ultimately, if e-start is that important to you, your best bet is going to be to sell the TT and purchase something with e-start.

All that said, once you learn the technique for starting a big thumper, it's really not that difficult. As to your bike not running now, clean the carb, paying particular attention to the pilot jet and it'll run.

good luck,
Craig

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Ramrod

03-24-2005 06:44:50




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 Re: VERY OT Dirt bike starter in reply to Rob N VA, 03-23-2005 20:31:47  
I had, back in the day, a Yahaha MX 500. It should have the same 2 stroke as your tt bike. I remember that it was very easy to start once I got the hang of it. There is a compression release on that engine which will make it much easier to kick, make sure it's working so it don't kick back.

Ramrod



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Bob - MI

03-24-2005 05:24:59




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 Re: VERY OT Dirt bike starter in reply to Rob N VA, 03-23-2005 20:31:47  
My guess would be that this would be a very difficult conversion candidate. Electric starters on motorcycles have to be connected to the crank drive system someplace where it is dry. I"m pretty sure that would rule out trying to engage the primary drive on the clutch. Can"t remember if a 500TT was a four-stroke or not but if so, my guess would be that the only remaining place to use would be the cam drive. Probably a chain drive system, this would be carried in a narrow tower from the crank to the cam. Likely not much room there. You may want to check with the Yamaha dealer to verify which way the crank rotates. Some of them spun backwards.

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Pete's '47

03-23-2005 22:34:43




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 Re: VERY OT Dirt bike starter in reply to Rob N VA, 03-23-2005 20:31:47  
If it has a battery and some way to charge it, you'd need a starter from something and a electrical circuit (switch). But the big problem is that bikes have their starters mounted to lower case castings that mate the starter to the clutch primary gear or intermediate gear or such in a sealed transmission. Having said that, I don't want to dis your TT, but the trouble, headache and expense would far exceed the value of that old Yamaha. Pete

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