When a mini moto is brand new it is recommended that you run the bike in. This should be done for the first 3-4 tanks of fuel.
I recommend that for the running in period the fuel mixture ratio should be 25:1, this means that the mixture is rich. This will mean that all the mini moto engine parts will get well oiled and the brakes and clutch to get worn in.
Avoid revving the bike at maximum revs for the 'run in' period as this can cause damage to the new engine which is not yet oiled or set in.
After you have run the bike in on 3-4 tanks of fuel then give the bike a good check over, this includes chain tension, brakes, forks and wheels and ensure that everything is running smoothly on the bike.
The bike should now not have to be run as rich and the fuel mixture can be lowered to 50:1.
