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Old 06-12-2011, 07:18 AM
the stig the stig is offline
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Default Clutches for Chainsaw powered go karts?

Hi all

I have seen a videos on you tube of chainsaw powered go karts
they sound great.

Has anyone here had much luck with them?

How would you mount adapt a centrifugal clutch sprocket chainsaw engine? Can you buy one?

I like the idea of twin engines like the vintage karts I think they ran old chainsaw engines does anyone know how they ran their clutches?

Thank you in advance
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Old 06-12-2011, 08:07 AM
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Chain saws of old had far larger displacement than anything produced in recent times.
A typical home owner saw is around 35 to 55cc's and is too small for anything that I would throw money at. A 55.5cc Husqvarna saw is only about 3.5 hp.

Check out my twins project that utilizes two 141cc engines (282cc's total). This is as close as I could get to the old school karts.
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Old 06-12-2011, 09:43 AM
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I agree the typical homeowner chainsaw engine would be too small and low-powered for most karts, but they still make lots of much larger chainsaw models designed for loggers and Arborist. These would have way more H/P that most of those old mac's used on karts back in the day.

These larger 'pro-model' chainsaws are very exspencive when new, but I've seen some bargain prices in craiglist ads and some pawn shops lately.

As far as the clutch goes, one option would be to have a really-good welder/fabricator attach a #35 or #40/41 drive-gear to the saws original clutch.
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Old 06-12-2011, 09:59 AM
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Quote:
they still make lots of much larger chainsaw models designed for loggers and Arborist.
Here's one:
Husqvarna 3120XP
At 8.4hp, this is a serious saw (up to a 42" bar) and if not for the price would be a consideration.
There are bigger models...some with 60" bars!!!
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Old 06-12-2011, 12:30 PM
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The video below shows a chainsaw that could probably power your kart.

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Old 06-12-2011, 03:14 PM
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Quote:
The video below shows a chainsaw that could probably power your kart.
It's no wonder serious posts go off topic so quickly.
Try "Off Topic Fun" for this crap.... and yes, we've all seen that vid before.
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Old 06-12-2011, 04:07 PM
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Quote:
Originally Posted by Russ2251 View Post
It's no wonder serious posts go off topic so quickly.
Try "Off Topic Fun" for this crap.... and yes, we've all seen that vid before.
WOW! Has reality set up shop in you arse? You wonder why there are plenty of 1 post wonders? When they see a very senior member having a go at anyone that makes a mistake? Makes a real good impression.

Anyway back on topic. When I was little I had a ride in a chainsaw powered cart. It moved me alright and I was way to big for it. I think it will depend on who is going to ride it. Kids or adults?

Jeremy.
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Old 06-12-2011, 04:25 PM
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wern't alot of the old racing karts chainsaw powered? (i dont think they used a clutch at all. If you're on a track you dont need a clutch.)

you can make alot of extra power out of a saw engine. Have a look on youtube at some modified racing chainsaws

edit:

oh yeh and i saw this for sale the other day:



^pretty easy to make something like that?

ediedit: i have an American twostroke manual thing which says that comet makes a clutch to suit small twostroke engine pto. Thats all it says but yeh.... look into that
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Old 06-12-2011, 05:12 PM
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Quote:
Anyway back on topic.
Quote:
WOW! Has reality set up shop...
Reality?...yes. Point made?... Judging by the top quote?...apparently yes.
Quote:
Makes a real good impression.
I hope so.
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Old 06-12-2011, 05:29 PM
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Quote:
wern't alot of the old racing karts chainsaw powered?
Key word..."old".
My Clintons, Westbends, Power Products engines were all chainsaw specific at one time.
All are 90cc's and larger and therefore are performance monsters.
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Old 06-12-2011, 08:26 PM
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As everyone has said, a regular homeowner saw wont be powerful enough, however if you have the urg to make a 5mph loud *** go kart, you could have an adapter machined. i made an adapter for a 50cc mcculloch that i will be putting on a bike, didnt take much to machine, simple taper lock adapter that will fit a 3/4" bore clutch.
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Old 06-12-2011, 10:33 PM
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Quote:
Originally Posted by Russ2251 View Post
It's no wonder serious posts go off topic so quickly.
Try "Off Topic Fun" for this crap.... and yes, we've all seen that vid before.
Sorry there Great Almighty One. I hope I didn't pi$$ off the general population so much as to ostracize me for one light hearted post. Again, your highness, I humbly repent.
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Old 06-13-2011, 12:43 AM
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When I was a littel kid like 8yrs old Dad came home with a kart sold at Sears it had a Homlite chain saw engine with a cent clutch. It was Bad A**. Would hit 50 mph easy. I wish I still had it.
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