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Old 09-14-2009, 10:55 PM   #1
kevingraehl
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Default Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

















I forgot how small the tires were.. i calculated ... well lets just say with the motor at the rev limiter my top speed is 12 mph..in 5th gear..

Who has taken the rear end out on one of these? what gear ratio is it.. Can i get a 6-1 Hi speed rear end kit-- i only see them listed from 1988 and up.



the front sproket on the motor is a 13 tooth.. the rear welded on sprocket is also a 13 tooth.. The rear end seems like a 13:1 reduction drive-- coupled with small tires makes me not move and not happy:)

I ordered up a 28 tooth front sproket ( from the rear end of a yamaha kids quad-- 520 chain size ) and a 12 tooth Rear sproket..

I will have to weld a spacer / adapter so the 28 engine sprocket clears the ignition case on the dirtbike motor..

so here is my question.. Should i just turn the motor 90 degrees to the right and put a go cart axle on it? ifso anybody got one cheap?
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Old 09-14-2009, 11:22 PM   #2
Flintrock
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Default Re: Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

the front sproket on the motor is a 13 tooth.. the rear welded on sprocket is also a 13 tooth..

Well there's your problem right there!!! Nice pics though!
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Old 09-15-2009, 12:11 AM   #3
todd108s
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Default Re: Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

I think you have way too much time on your hand's,to put a CRF 450 motor in a golf cart..That thing ROCK'S..Good luck with the whole Honda starting problem's.I've never known a crf 450 to start easy .EVER.........
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Old 09-15-2009, 12:17 AM   #4
pizzamaker
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Default Re: Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

the straight axle is the only way to go!
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Old 09-15-2009, 01:17 AM   #5
kevingraehl
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Default Re: Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

starts right up.. u have to know what it likes ( i prime it with 2 turns of the throttle acc pump,, then kick away
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Old 09-16-2009, 08:52 AM   #6
boosted 230
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Default Re: Crf 450 motor in my golf cart,, need gear ratio issue help.. speed to to slow

Hey, what's the name of that green thing? they had one at my local bike shop a long time ago and i forgot the name of it... the suspension on that thing is amazing! I want one. .... (edit) found it.. go ped trail ripper.. tight stuff!
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Old 09-21-2009, 05:39 PM   #7
Monsterezgokid
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Default

Hi kevingraehl. I might beable to shine some light on your project.

I was once in the exact same situation as you, when i was building my skidoo powered cart.

I had a parcar/harley rear just like you, and tryin to run it using a chain setup and chain clutch on the engine.. It was wayyy too high of a ratio. Even if you had it somewhat working, that chain would be goin way too fast, the original rear input would spin like 4000rpm at like 20mph. i ended up using a ezgo rearend with reverse, and the original skidoo clutch, and got the speed that i wanted, but for your situation Your best bet, would be to run a straight axle and mount the motor facing foward. Dont even try spending time using that old rearend, you just will never get the speed you want out of it.

You should easily beable to get some nice burnouts with that engine

That is also the most killer sleeper cart once you get it going.. lol should be cool to see how it works out
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