need more power for my quads ??

[bism45]

hi all, i run a small quad tour business and i have 4 x mxu 250 quads, they are all 2005 and have had a good run but i need to put a new lease of life back into them ? i change oil,plugs,tyres and clean carbs of course, and renew chains etc...but is there anything more i can do to restore power into them ? i.e..... new pistons....valves.....belts......any suggestions please ....cheers

[BettinANDlosing]

I have zero experience with the Kymco quads but if the top ends the same as the 250cc scooters the 300cc kit would make a good boost in power and torque.

[souzamoto]

Check the CVT & Belt for wear, replace if necessary.
How many miles or hours on the machines?
If high mileage, i would freshen the top end. Check all the clearances (rings,piston), check the valves, etc.
If your were happy with the power when they were new, if you rebuild them stock, you should be happy again!