What RPM should a 50cc scooter idle at?
Ideally, you will want the idle to rest at 650 RPM. why does my scooter dies when I give it gas? solution is to open the tank and reseal it slowly allowing some air to get in or remove some fuel.
Why does my bike idle but wont rev up?
Bad news is that the carb job yesterday hasnt done alot of good, the good news is that it seems to rev now but the bad news is it wont idle so well and now when you rev it the revs stick on. Say, you rev to 3-4 k and loosen the throttle – the revs stay there. Theres quite a bit of white smoke from the exhausts too, and it also leaks fuel on prime .
What makes a 50 cc scooter spin at idle?
I’ve adjusted the idle up a little, to the point where the rear wheel brake that keeps the back wheel from spinning during idle is overwhelmed and starts spinning. Fuel filter isn’t clogged, and it drains fuel fine.
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.
What causes a motor scooter to stop running?
You’d be surprised just how easily the smallest piece of dirt inside your carburetor or throttle body can cause issues for your scooter.
Why does my scooter not run at idle?
Carburetor problems are the most likely source of poor running. First check the idle speed and air/fuel mixture screws (see carburetor adjustment ). If the adjustment is OK, or you can’t get the engine to idle well, then comes the next step.
What to do if your motor scooter won’t run?
You need to check that it too has a little 0.004 clearance to ensure your scooter is running to its optimal performance level. This video by Rouse Garage will show you the process on a 50cc scooter with a common engine layout, you may find your scooter has a slightly different layout.
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!
Why is my bike engine bogging under acceleration?
If the bike does not idle smoothly or takes a long time to settle back down to idle speed, and you’ve already cleaned the carburetor, you may have an airleak. Airleaks can be caused by a bad seal in the engine, or in the intake/carburetor joints.