My brother's Vespa scooter fell over and won't start up again.
He's had this problem several times and it's really expensive to get fixed. He's had to pay the ealer to come and get it and it would be so much better if he knew how to fix it quickly himself. It always seems to be at the least convenient time and place... Anything he can try would be a big help as at least it would make him feel less helpless when it happens. Thanks. Carla.
Re: My brother's Vespa scooter fell over and won't start...
If it falls over and wont start it just gets flooded.
Simply remove the spark plug (inspection panel is behind your feet) and leave it sit for a half hour or so. Use the kickstart every now and then (with the scooter turned off). The excess fuel will eveporate and when the sparkplug is replaced it will start up but it will be smokey for a few minutes. Just leave it sit idling for a while to clear out.
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The paw of the ratchet is not engaging because either it or its spring are broken or out of place. Take out the transmission cover, find out which and fix it - all you need is a set of socket wrenches.
If you are seizing the engine, the problem could be related to several things:
1st: If you are running lean, the engine will seize.
2st: If your engine timming is too advanced, it will also seize (plug fires too early).
3rd: If your piston to cylinder gap is too narrow it will overheat and seize (sometimes in just about 2 miles).
Any of these could be causing your problem, but there is one last advice I would like to tell you. Two stroke engines rely on fuel+oil mixture to lube the cylinder/piston parts. Most times I see someone seize and engine it happens after an uphill when the descent starts and the pilot cuts throttle resulting in overheating the engine. If you cut the throttle you also cut the oil (because it goes mixed with the gasoline) and that can cause the engine to seize.
My advice is to blip the throttle one in a while when on a descent.
Hope this helps and you wont get any more problems with your scooter :)
I assume your problem only applies when the engine is hot. This could be one of several things:
1 - bad seals
2 - broken engine body (heat expands it and lets air in / compression out)
3 - related to above, but happening on top end (cylinder/head)
All these are hard to fix at home, but there it could also be related to a carb problem... imagine your scooter is running too rich, it will run ok for the first kms, but after you stop and because the plug is dirty and/or the engine is flooded, it wont start anymore.
When this happened did you check the sparkplug look (is it dark? dry or oily?)
Hope this helps!