chainsaw go kart?

[noobguy]

hi i'm very new at this but i would like to make a go kart with no welds like the one Colin furze did, at the moment i have a jonsered cs 2145 engine i don't know how much horsepower it has or rpm but all i know is (from youtube) most chainsaw engines have to much torque and i was wondering should i stick with my engine or get a proper go kart engine ?

---------- Post added at 02:20 PM ---------- Previous post was at 02:17 PM ----------

also i'm in the UK if that helps for some reason.

 

[Nosandwich]

---------- Post added at 02:20 PM ---------- Previous post was at 02:17 PM ----------

also i'm in the UK if that helps for some reason.[/QUOTE]

Yeah, go have your tea and crumpets.

IDK...Every now and then, I just loose patience with all this "I don't want to do anything traditional and I don't weld, but I want to build a kart. (Picture two people at a convience store and one of them holds the door open as the other leaves.)

 

[noobguy]

no the only reason im doing the chainsaw engine and no weld is i have no welder and im a cheapskate so im trying to do it all under £200

 

[mckutzy]

Hello and welcome....

We will try to help you as best as we can... but typically there isnt alot of power in a chainsaw.... they are designed to cut wood.... the resistance is far greater to move something then a chain for cutting wood.....

If anything youll be better putting that on a bicycle... as that is a far more achievable goal then the kart....

 

[itsid]

true true..
but it's not impossible.. just not very practical.

a chainsaw engine contrary to what you've been told (I think you just misunderstood to be frank)
has nearly no torque and is typically all rpms.. which is as mckutzy said good for cutting wood (more teeth per minute bite the bark)
not too good to propel a kart (where you need significant torque to push you up a hill )

That being said.. gearing.. excessive gear ratios can solve that, likely a two stage reduction will be needed to compensate.. but it is possible.

And yes, the same holds true for a bolted chassis.. it's unpractical, but possible.
Not buying a welder is not cheaper though, just more complicated tbh.

You can get a decent stick welder for what 60
https://www.amazon.co.uk/Dirty-Pro-...&qid=1518977914&sr=8-11&keywords=stick+welder

and a wire welder for 80
https://www.amazon.co.uk/Wolf-MIG13...TF8&qid=1518977972&sr=8-9&keywords=mig+welder

and while that involves learning a new skill (which can be fun or a PITA depending on your personal learning experience with it)

grade eight bolts are expensive('ish) so do yourself a favour and double check..
watch the colin furze build videos over and over again, cound the bolts in their respective sizes..
(take notes) carry said list to the hardware store and see what they will cost you.

You must not use used bolts, if one's stretched or weakended for one reason or another is impossible to tell with the naked eye and can be a risk for your health.. so just don't.

Anyways, I'd be amazed if that pricetag is less than 40 pounds for the bolts...

And with that I'm going to break that last thing..
building a kart from new materials for 200 pounds is way more difficult than finding a used complete funkart on ebay/craigslist/gumtree whathaveyou for a lower price than that
(even INCLUDING the engine)

Since a set of kart wheels (again you cannot use cheap 10 bucks a pop dolly wheels for a go kart) can easily set you back ~100 bucks at least half that used mostly.
And then you have no bearings, bushings, steering components etc..
that money's quickly gone if you make your own kart.

Don't get me wrong, MAKING a kart is great and we really like to see you doing it and help you wih everything we can on the way.
BUT it's not the cheapest option to go for mostly.
bolting is not necessarily cheaper than welding, and making is not necessarily cheaper than buying used.

So again, we will not stop you, we just warn you about the downsides.
Check all other options first, to see if there's a better one for you.

'sid

 

[bob58o]

Is that the video where he had issues with the chain/spockets?

Wasn't he using bicycle sprockets or something?

 

[noobguy]

could i put the engine on a normal bike frame but modify it a little or should i make a brand new frame?

---------- Post added at 07:01 PM ---------- Previous post was at 07:01 PM ----------

yh it was i thought he said it had to much torque

 

[Nosandwich]

could i put the engine on a normal bike frame but modify it a little or should i make a brand new frame?

---------- Post added at 07:01 PM ---------- Previous post was at 07:01 PM ----------

yh it was i thought he said it had to much torque

No...because you don't weld. You can buy a kit that bolts on.

 

[noobguy]

ok i might try to find a mate with a welder but thx

---------- Post added at 07:36 PM ---------- Previous post was at 07:16 PM ----------

would i need to change the sprockets or anything on the bike frame? i know about the twist throttle but should i change anything else?

 

[Nosandwich]

Search for a kit to motorized a bicycle, it'll have everything.

 

[fasterSr]

https://www.youtube.com/watch?v=da9NaBMKCjY

Looks fun!

 

[noobguy]

wow its like a moped

---------- Post added at 08:19 PM ---------- Previous post was at 08:17 PM ----------

also does anyone know anything about my motor
it is a jonsered cs 2145 and it is american but i know nothing else about it can someone give me some info about it?

 

[Whitetrashrocker]

It's a 25cc chainsaw engine.

 

[noobguy]

do you know the hp?

---------- Post added at 09:13 PM ---------- Previous post was at 08:56 PM ----------

ok i found it it's 3 hp and actually 45cc

---------- Post added at 09:14 PM ---------- Previous post was at 09:13 PM ----------

i posted it so i remember

 

[itsid]

chainsaw to bicycle is not too difficult in fact,
a second sprocket (you can find one on motorized bike shops) that bolts to the left side of the rear wheel (to the spokes) a pannier rack to bolt the engine to, a gas tank and a throttle handle (from a moped)
and some fiddling of course

that's essentially all there is to it;
personally I like a friction roller setup better for engines that size (since it reduces the hassle with gear ratio and chain routing a bit.)
but that might be a bit more fiddling with a chainsaw engine. (making the friction roller mainly)


bob, IIRC that was Tony not Colin *shrugs*

'sid

 

[noobguy]

ill probably not do the friction setup but i really like the idea thx all
ill probably do a go kart build later when i'm more experienced but at the moment a small chainsaw bike is perfect thx

 

[noobguy]

this is the jonsered engine i hope the pic comes up

 

[Whitetrashrocker]

Put the saw back together.
Whats your plan? For a kart I'd look around and find a "it ran last summer" or a really good rolling chassis with a bad engine or something of the likes. They are usually cheaper than a turn key.

If your going the bike route do you have a bike to start with? I'd personally go with a chain drive over the friction wheel. I see bald tires on the friction drives all the time. Buying a new tire every few months gets old.

And for what seems like the lack of fab skills, a bolt on engine kit would be a great place to start. One you can get that mounted and running. You will soon either give up or want to make something faster.

 

[noobguy]

well i got the chainsaw form a tip near where i live but they have decent condition bikes there (they even had a ride on lawn mower which i was so tempted by) but i will get a bike from there, check it, buy some parts for it then build it but after that i would like to start getting into go kart builds or buying rolling chassis but eventually i want to increase my skills and make go karts that i might be able to sell on and i might buy a welder i can use for later builds.

 

[mckutzy]

I think NS had mis-quoted Sid, but yes Noob, please use some better typing skills. It gets really tedious and hard to understand...