Go kart help

[Cesarvizcarra]

I have a go kart with a 10.4 hp Honda engine, centrifugal clutch with 14 tooth and a sprocket with 54 tooth,my problem is that go kart barely moves when leaving,is really fast but is not leaving strong,won’t even go up my drive way please help

 

[PullHorse]

Swap the engine sprocket for a 10T and see where that takes you. Assuming you don't have huge tires.

 

[Brianator]

In other words your gear ratio is less then ideal and you're burning up the clutch to get it moving from a standstill

 

[Cesarvizcarra]

14” tires and clutch is brand new

 

[PullHorse]

14” tires and clutch is brand new

Then swapping the engine sprocket to a 10T might not be enough, but you can give it a try. You may need to swap both to get a better gearing, or maybe find a 9T engine sprocket.

 

[Brianator]

Be better to go bigger on the rear, smaller than 10 tooth up front starts to get hard on the chain, plus the sprockets themselves wear out much quicker. To get the best help possible let us know what kind of clutch you have and what's the weight of the kart (with driver/passenger), also is the kart rolling freely?

 

[Cesarvizcarra]

In other words your gear ratio is less then ideal and you're burning up the clutch to get it moving from a standstill

How can I fix that please?!

---------- Post added at 07:26 PM ---------- Previous post was at 07:25 PM ----------

Then swapping the engine sprocket to a 10T might not be enough, but you can give it a try. You may need to swap both to get a better gearing, or maybe find a 9T engine sprocket.

Swap sprocket and tires? 9 t sprocket and what size tires?

---------- Post added at 07:50 PM ---------- Previous post was at 07:26 PM ----------

Be better to go bigger on the rear, smaller than 10 tooth up front starts to get hard on the chain, plus the sprockets themselves wear out much quicker. To get the best help possible let us know what kind of clutch you have and what's the weight of the kart (with driver/passenger), also is the kart rolling freely?

There’s no brand on the clutch,bought it on eBay,the kart does move freely and I think about 350 lbs

 

[Brianator]

Can you send a link to the clutch? To fix the gear ratio you're best bet is to get a larger sprocket for the rear or build a jackshaft, I'm going to let someone else with more experience pipe in but you should list as much info as you can and add some pictures of the cart, of the motor/clutch and one of the rear axle.

 

[Smerft85]

Post pictures so we can help you. Sounds like you need a 10t clutch and at least 60t axle sprocket, leave the tires alone and gear it down with the sprockets, my streaker is that sprocket combo on 15" tall tires and it's got torque and speed.

 

[Cesarvizcarra]

https://www.ebay.com/itm/151559185215 https://share.icloud.com/photos/0idDh04F0iRoqXTLlh-Sb4CgA

---------- Post added at 08:32 PM ---------- Previous post was at 08:29 PM ----------

https://share.icloud.com/photos/01Drz16wFD7TgbsqCWssjGLLw

---------- Post added at 08:40 PM ---------- Previous post was at 08:32 PM ----------

Engine is a Honda gx340 337cm3,go kart name silverquick ll

 

[landuse]

The first thing i would try is a 10 tooth clutch. If a 72T axle sprocket is cheaper than the clutch, i would go for that rather

 

[Smerft85]

I see the issue, with the 1" shaft on the gx160 a 14t clutch is the only option for a clutch. You might consider a 40 series t/c, or run a jackshaft, either way you are going to want a bigger axle sprocket. I believe my big block has a 14t clutch to a 12t sprocket on the one side of the jackshaft, a 9t on the output side to a 54t axle sprocket, it still isn't as torquey as I'd like but doesn't burn up clutches.

 

[Cesarvizcarra]

Thank you guys I’m going to start with a bigger sprocket,then the 40 series t/c thanks a lot!!