Baja 96cc mini bike wont start. Ran last year. Cleaned carb, replace plyg, fresh gas.... Wont start..? Help...

Hi,
There are usually a couple of brass jets in most of these types of carb. The main jet is obvious ( Usually in the centre) but the idle jet may not be so easy to see. Remove the brass jets and use an airline to blow air through the tiny holes to clear them. If you don't have an airline try a bit of monofilament fishing line. DON'T use wire. If you try to use wire to clean the jet you can damage the jet.
Hope this helps
Regards Stan

The gasoline need to be drained out, and new put in with some seafoam gas additive to hopefully help your fuel system cleaned up.
Fresh oil and filter.
Check the plugs.
Don't be surprised if the carb doesn't need cleaned inside.
Chatge up the battery, and give it a try

Chances are the carb is plugged up with stale gas. The carb will need to be disassembled and thoroughly cleaned, including all passages.

r all the mufflers the same heat--make sure carbs r ok n gas is gitten to um--inspec plug wires n the rest of ign for wear and bad contacts--with an ohmeter n repair manual varius test can be done-sayonnara

the valves may need to to adjusted.

With a new plug and fresh gas it should start. Check to make sure there isn't a kill switch turned off or that the gas petcock from the tank to the carb is on.

How did you check the fuel filter? Disconnecting it from the fuel line that goes to the carb is the best way, making sure the gas is turned on under the tank. Bleed off a little gas into a can or something just to make sure the filter isn't plugged.

The last thing I'd do is take off the air filter and spray a little starting fluid in the carb. It may start and run several times if there is old gas in there somewhere. Remember the bowl on the carb is probably still full of old gas. After some fresh fuel reaches the plug it should start and continue to run.

(You might drain the bowl on the carb of ols gas before you go any further)

Good luck!

Sirwriter

check comprsion. check valve clearance.

I would think about investing in a carb re-build kit.

What u are describing is typical of a faulty ignition system, but could also be a fuel problem. I check by removing the aircleaner and rotating the throttle. If u see a nice spray of fuel, thats probably not the problem. Check for a spark at the plugs. I can explain how if you need me to. If you cant see a good spark, U have an electrical problem. I had a crank position sensor go bad on me. Dont do what I did (replaced the battery, ignition, and regulator as part of my diagnosis procedure)