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Old 02-26-2020, 12:25 AM
Speedy79 Speedy79 is offline
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Default Help with my snowmobile engine on kart build.

HI I've been working on my project for quite a while now.. The problem I am having is with the clutching. When starting my project I knew nothing about cvt and thought I could just run the belt straight to the axle. Bad mistake. Cause I trashed my secondary and gearing not knowing I'd need them. I recall reading in one of these post a while back about a adapter I may could buy or build to replace my prI'm art with a centrifugal or something and just chain down from that straight to the axle.? Please tell me I'm right and if so does anybody know where I could buy one? Thanks in advance!
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Old 02-26-2020, 05:28 AM
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welcome. can we see a pic of the output shaft of the engine.
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Old 02-26-2020, 07:25 AM
karl karl is offline
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Year/make/model sled?

How heavy is this kart? What is the intended top speed? What terrain do you ride on? Tire size?

But, at least a pic will help us judge

I would look for a used replacement driven clutch, and research jackshafts and ratios some.
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Old 02-26-2020, 08:29 AM
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uhoh..

yes, we need pics to help..
engine, TC, (both pulleys) and general setup..
the more info we have the better; as karl said: engine details, wheelsize, weight, intended speed and so on.

ruining the driven of your TC might have been an expensive test..
I assume the sled came with a salisbury style TC (duster 94.. 900 series something alike)
and a driven for that can set you back several hundred bucks.

Sooo I really hope you haven't actually trashed the secondary (driven pulley) but just upset it slightly
That way we can replace just parts not the entire unit

But we need pics to judge

'sid
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Old 02-26-2020, 10:02 AM
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I think by "trashed" he means he threw them away!
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Old 02-26-2020, 10:15 AM
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I sincerely hope not..

let's hope we'll find out soon

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Old 02-26-2020, 01:57 PM
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Yes I'm afraid I have thrown out my secondary. I started this build about 6 months ago and me not knowin little or nothing about cvt set up's did the worst thing that could happened I guess now. The sled was a 1979 Artic Cat Pantera with the Suzuki spirit 500Fc .. After watching and wanting for so long to have one of my own buggies that would rip I decided to try and build one. ( shoulda studied a little more I see now). I ran across this frame online that had this Jacks haft setup so I figured it was my cheapest and best route. It had the driven off a 30 series torque converter on it and I figured what the he'll so I gave it a shot. It lasted for a while and was actually pretty fun. Not no where neAR the speed of the sled though. Needless to say I've been through about 3 30 series clutches in about 3 months. After reading over and over these post night after night searching for a answer I finally just decided to ask for help. I'm willing to speND a little more money on this project if need. I've got a few driven clutches off Polaris motors. Would they posibly work? Do I need to ordetermine the original driven and shaft for the sled? Do I need the Geer box also or can I get by without it? And last I read on here this guy makes adapters to run chain straight from the drive of the motor, if so is there a way to get intouch with him? I'm here to listen please help!

---------- Post added at 02:57 PM ---------- Previous post was at 02:56 PM ----------

And howe do I post a pic?

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Last edited by itsid; 02-26-2020 at 07:29 PM.
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Old 02-26-2020, 02:35 PM
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Quote:
Originally Posted by Speedy79 View Post
The sled was a 1979 Artic Cat Pantera with the Suzuki spirit 500Fc ..
I had an 85 with the spirit, it was a dog. Struggled to go above 40mph, even freshed up the top end, did not help , 300 yamaha left it in the dust

As far as the clutch, you definitely need the belt style clutch.

When you say hook chain to motor, I think you mean a normal style, 1 speed , centrifugal clutch

This is not ideal for a heavy yard kart, the gear ratio would need to be very steep to not burn up the clutch, so it will be really slow. Also the clutch will be expensive , and custom made for the right engagement speed.

So I would keep a lookout for the matching clutch off a simular sled, at least the same belt width/ dia

As far as the way it could be mounted, that is determined by the way the spring is wound / buttons. Most sled driven clutchs are not reversible.

Anyways, I used an old sled's driven clutch on my go kart build, this is how I did it.
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Old 02-26-2020, 05:05 PM
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Does anyone know about this ttype of setup? I've messaged the guy but still hasn't responded. If so are they any good and where could I purchase if so.Thanks in advance

Karl where did you get your shaft for your secondary? Is it splined?
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Last edited by itsid; 02-26-2020 at 07:29 PM.
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Old 02-26-2020, 07:33 PM
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Bret made the adapter himself.. you can't just buy one I'm afraid

you have half a sled CVT.. I just can't identify make or model from that angle really..
(I have a feeling.. but that should've holes.... IDK)
could you take some better pics please?

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Old 02-29-2020, 09:08 AM
Speedy79 Speedy79 is offline
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Let me know I'd need more! Thanks
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Old 02-29-2020, 09:57 AM
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yeah I'm afraid that looks totally unfamiliar to me..
so stock arctic cat part# is the only way to go (for me) currently..

part # for the driven clutch would be 0226-022 (allegedly the same as for the Lynx)
https://www.alssnowmobile.com/oemPro...emSku=0226-022

Or if you have a Panther not a Pantera.. 0226-019 (different fixed sheave with brake disc mount afaik but perfectly identical driver clutches [0225-121] )
https://www.alssnowmobile.com/oemPro...emSku=0226-019

IDK how "good" those used ones are, but since there is essentially not many options left..
I'd pick one (the "ok to ship" -022 I think)

Sorry... the clutches have been replaced by the Comet 108EXP and that is easy to find
but I unfortunately don't know if the two are fully compatible.. and since a 108EXP driver costs ~500 bucks new, I doubt you'd want to swap, right

'sid
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Old 03-01-2020, 09:23 PM
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If you eventually get the correct secondary clutch, which I highly suggest. You will need to correctly set the center to center distance and offset. If you are using a pantera then its 12.2" center to center. And 34mm offset. This will ensure your belts last and dont shred everytime you go out. I have a post showing my motor swap using a snowmobile engine. Its still in process but I might help you understand the set up.
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