Engine Trouble Bike wont go faster than 24mph with 36t sprocket

[6blueoval9]

Im using synthetic mix 2 cycle oil with 87 octane gas

How much oil and how much gas?

And how many tanks of gas have you used so far?

 

[inspectorcritic]

Hey everyone my name is Peter and i need help. My bike is a 2009 zoombike and it has a ported outtake just wanted to throw that out there maybe that will help with my problem. Anyways my problem is that for some odd reason my bike wont go faster than 24mph with a 36t sprocket. I don't get it. Before i had a 44t and did 24-25mph! I think im running fuel ratio fine because i did a spark plug check and its black but dry. Thanks

Your bike motor is trash just bought one from California Motorize bikes doing 35 MPH +out of the box Bike Berry throttle jam on me at full throttle or I would have more stories only road it for 3 minutes but ran neaarly 40MPH almost killing me and the price was very competitive $100.00 so if you want speed buy one trash that one.

 

[BikePete]

Ive used about 4tanks. I have a question about my other motorized bike. I looked in it today and notice little play in the piston in the cylinder. Is that normal?

 

[Street Ryderz]

Ive used about 4tanks. I have a question about my other motorized bike. I looked in it today and notice little play in the piston in the cylinder. Is that normal?

Play witch way side to side or up and down?

 

[BikePete]

Left and right and front to back

 

[BikePete]

The bike runs great and cylinder is in good shape too

 

[BikePete]

The bottom end has 1600 miles on it and the top end has 600 miles on it

 

[BikePete]

Compression is 150psi with a 6cc head

 

[Street Ryderz]

Left and right and front to back

Yes there will be a little bit it's the rings that seal and keep the piston centered.

 

[BikePete]

Oh okay thats a relief thanks