Write your answer...Got same problem quad 90cc wont rev up but gets better when air screw is completly closed checked for any intake air leaks checked jets and reedvalves all checks out perfect.sparkplug also changed.float level is now suspect
Could be your reids iv had same situation cleaned carb numerouse times new spark plug kept doing it turned out it was the reids on my dino 50
SOURCE: wr 200 power problems
Unhook exhaust pipe,check port for blockage. if it is clear try to rev up with pipe off.If exhust is clear you will need to check high side of carb. good luck
SOURCE: 2001 kdx 220 starts idles great no power stalls out , floods
Use a hotter spark plug. They do have different heat ranges.
SOURCE: rebuilt top end 300 and now idles fine but when
hi mate on the carb there are 2 screws below picture will demonstrate on the mixture screw you need to fiddle around with it either screw it in 1/2 turns and see if it improves in not unscrew it a full 1 turn just fiddle with it till it runs perfect also try replacing plug 
SOURCE: dinli 50cc 4 wheeler-has spark/new battery/getting
Check your fuel is getting to the spark plug .If fuel is making the plug wet then one tip is to heat up the spark plug and with gloves on and acting very quickly replace plug and try to start .
SOURCE: i have a 1971 suzuki ts 125 that starts and idles
Clean your carb and replace your spark plug that should fix the problem.
1,928 views
Usually answered in minutes!
×