I need some help with my 2stroke 49cc pocketbike who knows a thing or two bout these engines

 

i have a 300cc two stroke...
whats your problem?

 

My pocket bike won't pull at all, it goes up to about 15mph...it used to go upto 40 atleast thats what it says on the speedo, from time to time I can get it up to 40 but thats if I find a sweet spot on the throttle, if i go WOT it seems to bog down and struggle

 

Strange. Whens the last time you cleaned out the carburetor?

 

Never lol

 

Whens the last time you mixed oil in the fuel?

 

I think you should do a basic service on it clean the air filter,clean the carb and clear the jet or jets,and put a new plug in it.Basic 2stroke service complete.good luck

 

I have an intake for it, just replaced the sparkplug yesterday, I also think maybe its the gas? i've been running 87, I read somewhere that its supposed to be 91+?

 

you need to add 2 stroke oil to it.

 

get a ratio rite premix cup and mix it 40:1,and running premium might help

 

Added more gas and octane booster, cleaned the carb and it started running like a champ, then my flywheel broke lol

 

also, it will only start with quickstart fluid put in through the air intake

 

Clean/replace the air filter.

Never knew you could break a flywheel with 9hp

 

Have you been premixing it? Oil in the fuel and chake the fuel can up before using?

How many turns out are the mixture screw on the carb?

 

This thing prolly only has about like 4 HP lol, I mix the gas inside the gastank, gas, oil, then octane boost. I tried adjusting the mixture screw and got it to stay on without stalling out. but it still needed the quick start fluid to start up, I even tried starting it without the air filter on