Sprockets

[Josephmarius]

Hello,
Newbie here. Have a 6.5hp Honda engine. Took off slicks from go cart and put on all terrain tires 18.5 x 6.50 - 8 rear & 16 x 6.50 - 8 on front. What would be the best ratio for sprockets? It used to go like snot, now have to give a push from behind to get it going front sprocket has 9 teeth and rear about 52 to 60 still taking them off. And will just change of Sprockets do the Trick!,! Along with proper chain length .

 

[Kartorbust]

6:1 is usually the starting benchmark with that size tire. Get a 30 series torque converter/cvt from GoPowerSports or find GTC and order one off their 30 series. A CVT will be beneficial in that you start in a lower gear (something like 12:1 as an example, might be slightly higher or lower can't remember. A 6:1 would be a 10 on the cvt or clutch and 60 on the axle.

 

[landuse]

Your gear ratio is now too high because of the taller tyres. You will either have to gear lower with the centrifugal clutch or get a TC. A TC would probably be better