Why does my scooter keep stalling?
The engine dying when you stop is also symptom of a clogged idle jet. The main jet closes as you let off the throttle and there is not enough fuel coming through the idle jet to keep it running. Pull the carburetor and clean it properly. An inline fuel filter between the tank and carb can help this greatly.
Why is my scooter flooding?
A scooter engine will flood when too much fuel enters the engine area. Gas dripping from the air filter when the choke is closed indicates a flooded engine. Remove the spark plug and try to start the engine. Cranking the engine without the plug evaporates the gas.
What to do if your motor scooter won’t idle?
If you find the intake valve is too loose, twist it by hand in a clockwise direction until you reach the desired clearance level. Once you are happy you can just about slide a .004 feeler gauge behind your intake valve then you can re-tighten the intake valve nut and reassemble the intake valve cover and the rest of your scooter.
Why does my scooter not start at 100 psi?
If it’s 100 psi or less there’s likely and engine problem (bad valve, bad piston, failed piston rings) which will need the engine taken apart to find. Probably the most common problems are a dead battery or carburetor problems due to bad adjustment or build up of gummy deposits.
What happens if you have an intake leak on a scooter?
An intake leak really messes up the air/fuel ratio on your scooter and this can cause idling issues or worse, piston damage. TOP TIP: The first place to check would be the rubber intake hose (boot) which passes fuel from your carburetor to the cylinder head. Rubber Intake hose (boot) – the first place to check!
What do you need to start a electric scooter?
To start a scooter needs three things: If your scooter won’t start it due to one of the above not being present. Before you start troubleshooting, make sure there is gas in the tank by actually looking into it. Don’t just trust the gas gauge! Most scooters have four things that need to be done before they can be started with the electric starter:
What should the idle speed be on a scooter?
If you have a tachometer, setting the speed is easy. If you don’t, you want to set the speed to a low idle. Fast enough so that the engine doesn’t stumble or stall, but slow enough that the clutch doesn’t engage and try to move the scooter forward. On most scooters from 50cc to 250cc, this will be somewhere in the 1500-2000rpm region.
Why does my scooter stall out when idling?
And the obvious question, is your scooter stalling out when idling? If the answer to any of these questions is yes, they are all symptoms of your engine valves being too tight. Engine valves tighten over time after extensive use.
Why is my scooter not running at high speed?
If the scooter idles well and runs fine at low speed, but has problems at high speed, the problem may lie inside the carburetor with the main jet. The fuel/air ratio at higher speeds is set by the jets inside the carburetor and to get at them the carburetor has be be removed and disassembled.
What happens when you change the carburetor on a scooter?
It can make the scooter hard to start, it can make the scooter slow to accelerate, it can cause the scooter to idle badly and stall or it can make the scooter idle fast so that it’s trying to go all the time and needs the brake to hold it stationary. None of these things are good.