it is most likely the main jet. take the bowl off the bottom of the carb and there will be a jet which just resembles a screw near the middle going strait into the main part of the carb. unscrew it and blow it with an airhose if you cant see through it, find a needle or something you can knock any junk out with and blow it out again just make sure you can see through the center of it and then put it back together
tps throttle position sensor
Get it checked my a mechanic and never buy a Harley
You may have a throttle position sensor going out or possibly the fuel pump. Get some throttle body cleaner and clean the throttle body inside to make sure the throttle blade inside the body is not hanging up and then get a fuel pressure gauge and connect it to the fuel raila nd see what kind of pressure you get when you rev the engine..and see if there is a drop when you open the throttle.
what doesit mean when you start a 1984 200x atc and the motor is racing
I know about the starter and ignition, but I click the ignition and then it clicks, then when I press and hold the starter it starts then immediatly stalls, I have tried it in neutral, in gear, with clutch, without clutch, with clutch and throttle.
A water pump circulates the coolant on a 1983 Honda Shadow. But if you are having problems with it circulating you might want to check your thermostat first because it might be stuck , before you start digging into the water pump.
Start it up again.
Check for vacuum leaks.
could be lots of things is engine light on ? is there a vacuum leak check for a crack in the intake tube from the air box to the throttle body if engine lights on get code
Maybe need tune up
Wait a second, then start it again.
The same way you started it