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Author Topic: Snowmobile belt size  (Read 7784 times)

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Offline thedoctor

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Re: Snowmobile belt size
« Reply #15 on: May 03, 2009, 02:18:08 PM »
I have cut craddle to pieces. It was only way to fit without making complete new rear end. Engine fits tightly. Secondary will be real tight. Belt length doesn't matter now, I found old polaris belt that is same width and is shorter. My lazy easy transplant has turned into project. Tim
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In the words of my father "Never give up too soon, you might miss a good piece."

Offline Engineer

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Re: Snowmobile belt size
« Reply #16 on: May 03, 2009, 02:59:06 PM »
Looks like a project!

How big was the 4 cylinder bike motor that you took out? (CC?)

How fast did it go with the bike motor?
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #17 on: May 03, 2009, 03:05:01 PM »
It was a 550 Suzuki. I don't know how fast it was. The reason for the engine change is my buddy's son is 8. He didn't think he could handle clutch and shifting. I have a Suzuki ltz 400 that needs a engine. Hmmmm. Tim
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In the words of my father "Never give up too soon, you might miss a good piece."

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Re: Snowmobile belt size
« Reply #18 on: May 03, 2009, 03:20:01 PM »
what is there time limit at 8? 6 seconds? I have a feeling the snow engine is gonna disapoint you... one thing you might do is think about putting a adjustable driven on there, is the driven 1" key shaft?
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #19 on: May 03, 2009, 05:40:41 PM »
There is no limit. There was one kid that was 7 or 8 that had a 570 yamaha in a dragster like this that ran in the 4's. The jr class is limited to 100cc I think. I am using the chain case for reduction. Tim
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Re: Snowmobile belt size
« Reply #20 on: May 03, 2009, 05:44:32 PM »
Ah, Up here the juinors are limited to time... the benefit of the adjustable driven would be tuneability... if the oem driven was 1" key you could put a larger adjustable driven and gain more reduction as well...
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #21 on: May 03, 2009, 07:19:32 PM »
The last snowmobile drive I used[in a quad] was geared to low with chain case. We added 2 teeth on jackshaft and lost 10 teeth on axle sprocket. I thought I had it geared to top out at 300'. I am going to put a 13 on jackshaft and use existing axle sprocket[have not counted, but it is small]. We will try that and see what happens. Tim
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In the words of my father "Never give up too soon, you might miss a good piece."

Offline thedoctor

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Re: Snowmobile belt size
« Reply #22 on: May 17, 2009, 09:44:27 AM »
I have made some progress. I made some motor mounts and tacked them in[good thing]. I finally managed to locate secondary. It is a verrry tight fit. It will work with Polaris belt, which is available locally. I just have one small problem.Can you see it?   Tim
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Re: Snowmobile belt size
« Reply #23 on: May 17, 2009, 10:00:33 AM »
You got the motor so close you cant get the belt off without undoing the motor mounts?
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #24 on: May 17, 2009, 10:04:21 AM »
Nope.
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In the words of my father "Never give up too soon, you might miss a good piece."

SPEC

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Re: Snowmobile belt size
« Reply #25 on: May 17, 2009, 10:09:32 AM »
Looks to me that belt installation and the secondary clearance are going to be interesting
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #26 on: May 17, 2009, 10:14:03 AM »
I checked both of those issues several times and no problems.
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In the words of my father "Never give up too soon, you might miss a good piece."

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Re: Snowmobile belt size
« Reply #27 on: May 17, 2009, 10:15:44 AM »
The only other problem i see, Is that antique motor in that nice car ... :)
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SPEC

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Re: Snowmobile belt size
« Reply #28 on: May 17, 2009, 10:20:56 AM »
I'll bite...no sprocket on the jackshaft...and a really short chain with not much clearance to the carb...Plus it it spits the chain...Kiss the carb and lower case of the motor Bu Bye ;D
With a better picture I'd tell ya your eyes are beady... ;D
Mamma dresses you funny.... :o
And you don't love the Baby Jebas... :o ;D
Oh wait... WHAT WAS THE QUESTION AGAIN :-*
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Offline thedoctor

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Re: Snowmobile belt size
« Reply #29 on: May 17, 2009, 10:26:26 AM »
Yes I agree but the motor was free and it has low miles since it is in Missouri. I guess you can't see that the lower shaft is about 1/2" from the rear motor mouny tube, duh. Time to move that tube to front of mount. Got to have room for sprocket. Ahh Ozark American Engineering. Tim
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In the words of my father "Never give up too soon, you might miss a good piece."
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