Go kart clutch sparking

[IRuiz]

I just got a brand new clutch, but when I press the throttle, sparks occasionally shoot out. Should I be worried.

 

[mckutzy]

Hello and welcome...

Yes... That usually means something is wrong, or about to be really wrong..
How often do you oil the clutch... Should be every 2hrs of use...

Lets see some pics...
What Is the motor, kart, ect...Pics

 

[landuse]

Welcome! You should not be seeing sparks. Have you taken it apart to see what the issue might be? Is it getting oiled just on the bushing?

 

[IRuiz]

Hi, yes, I do oil the clutch regularly, I haven’t taken it apart yet. It’s on a predetor 301, but I don’t know what kart it is.

 

[Budget GoKart]

Pictures help you know and ive had sparks shoot out it may be getting too hot and it still needs oil on the bushing

 

[anickode]

Pictures, gear ratio, tire size, brand/model of clutch please.

Sparks come from heat. Heat comes from slip. Slip typically comes from one or more of the following things;

Gear ratio too tall
Tires too big for gear ratio
Poor quality clutch
Engine hp too high for clutch
Too much weight
Driving at partial throttle a lot
Clutch galling (both results from and causes slipping)
Driveline drag (sticky bearing, over-tensioned chain, dragging brake, etc)

The occasional spark isn't all that uncommon either... You do have metal rubbing on metal at high speed.

 

[IRuiz]

The tire size is about 13 inches, there’s 14 teeth on the clutch and 60 on the sprocket, and it’s just a cheap clutch off amazon.

 

[anickode]

The tire size is about 13 inches, there’s 14 teeth on the clutch and 60 on the sprocket, and it’s just a cheap clutch off amazon.

Your gear ratio is a little tall. 6:1 is ideal for 13" tires with a clutch. You're only at 4.6:1.

Cheap clutch off Amazon on an 8hp engine with too tall a gear ratio. That's your problem right there.

Start with the gear ratio see how the clutch performs then. If it's still giving you issues, you should consider a better clutch like the Hilliard extreme duty.

If it's a live axle kart, the other option (what I would probably do) is get a clone Tav2 torque converter on eBay for 60 bucks. Make sure it's one with a 1" bore driver. It should handle the 4.6 gear ratio as long as the kart isn't super heavy. You'll get way better acceleration and a little higher top speed. You can do a torque converter on a 1 wheel drive, but it will generally require modification of the engine mount.

 

[IRuiz]

Thanks for the advice.��

 

[landuse]

Your gear ratio is a little tall. 6:1 is ideal for 13" tires with a clutch. You're only at 4.6:1.

Cheap clutch off Amazon on an 8hp engine with too tall a gear ratio. That's your problem right there.

Start with the gear ratio see how the clutch performs then. If it's still giving you issues, you should consider a better clutch like the Hilliard extreme duty.

If it's a live axle kart, the other option (what I would probably do) is get a clone Tav2 torque converter on eBay for 60 bucks. Make sure it's one with a 1" bore driver. It should handle the 4.6 gear ratio as long as the kart isn't super heavy. You'll get way better acceleration and a little higher top speed. You can do a torque converter on a 1 wheel drive, but it will generally require modification of the engine mount.

This...