Is 6.5 Predator and Chinese clone Series 30 TC enough on Coolster?

[h34choctaw]

I've taken out the 125CC eng/trans unit on a 125CC Coolster Challenger and am about to weld up a mount for a 6.5 HP Predator and Series 30 Comet Chinese clone. Is this enough power and torque for hilly trail driving? Or should a bigger engine be considered? This is for two 100-125 lbs kids. Thanks

 

[ultralight01]

Yes. It should work fine.

 

[thefarmboy21]

Just put the same setup on an old Manco Dingo with 18" knobby tires and 48 tooth sprocket.....pulls really hard. I'm about 210lbs and I can put my son who is about 30 pounds, on my lap and it hauls us up any hill no problem. Slings rooster tails like no bodies business. Engine has a stage 1 kit on it. Still has the governor too.

 

[Tom Knight]

Mine runs about 40 mph, me 210 lb. 11 & 60 sprockets...