2stroke scooter problem?

Question

i have a 2stroke scooter, i have it since 2003. one day while i was riding it , it just stopped, i check for the cause and i found out that the sparkplug cap is broken, so i bought a new one, and make a few adjustment in the mixture and idle screws. it runs a lot smoother when i first start taking off down the road.The only problem is that now i've noticed that when i get to about 24 throttle or so, the scooter begins to lag and when i open the throttle widely, it dies. but when i start the engine again it will run. but when i open the throttle again it dies. can anyone help me? please..

Answer 1

sounds like its not getting fuel when you wind it out.it may need a new carby kit.the float may be sticking.the carby may need service.check to see if spark is intermitent,it may need replacment.make sure you got correct fuel ratio.

Answer 2

You should have mentioned the mileage.
It may need a top end rebuild if the mileage is over 5,000
Check the compression.
Couldn't hurt to check the air cleaner - clean or replace if necessary.

Answer 3

No not all 2 cycle have valves, some just have ports in the cylinder walls. I don't know what you got but often they won't fire if its old and compression is to low.

Answer 4

Did you change the plug, and if so, did you gap it correctly.

Definately check the fuel line, oil levels, air filter etc.

Answer 5

You could have a clogged jet. Get some Seafoam at your local auto supply store and see if that resolves the problem.

http://www.seafoamsales.com/motorTuneUp.htm

Answer 6

Make sure there is no crap/water in the fuel tank...replace the fuel filter... look for vacuum leaks...check replace the air filter...readjust the carb...

Answer 7

reset your mixture screw,s as per manufacture specification's,......check the exhaust port & system for carbon build up.....good luck!