- this problem might be a worn variator belt/rollers - Vespa technology requires a variator-belt service every 10'000miles
- contrary to the belief that the carburetor causes such trouble it is a common issue with Vespa engines that people are not doing the replacement of the variator belt in due time...
The biggest villain on a PX is the wire sheathing from the stator to the outside of the engine, it gets chafed off and causes an earth out.Also check the frame to engine earth, CDI and coil earth's as they are susceptible to corrosion which breaks the connection.CDi/Coil and regulator units do fail when they get hot and can exhibit the symptoms before they shut down, when they cool down they work again so maybe get a load test done on those or replace with a borrowed known good unit.Soft and hard seizing can be caused by damaged cylinder, piston rings, cracked crown, cracked piston, also a failing exhaust will cause merry hell with running.
possible air leak, check your vacuum lines. There should be one coming off the carb and gas tank. You may want to check your wheel hub bearings and rear brake shoes. Now that you provided a little more details about your problem, i would forget about the vacuum lines, and look at those wheel bearings.
some people try to access the spark-plug from under the seat..
- however the easiest way is to unmount the rear shock absorber (1 screw at the bottom) and rise the Vespa to reach the spark plug....
- this is far better than to reach it from above....
the only thing which has to be taken care of is not to lower the rear wheel too much-otherwise the spark-plug cable will be ripped out.
perhaps something wrong with the (coded) key - it has probably to be reprogrammed
the brown is the master key & the blue the normal onel
-try the brown rone first!
-such strange behaviour very often occurs when the rollers (& belt)in the variator case are worn, they have to be replaced by a dealer.
-they have a lifetime of only 12'500miles (20'000km) and have to be changed more than you would expect.....!
new rollers:
worn rollers!
service-kit for every 12'500miles:
The battery that powers your scoot has nothing to do with your clock battery. The clock runs on a small round battery directly under the clock. I had to have my shop do it because you have to open up the entire top cover. Cheap fix, and having the date show is great for us oldsters!
in front of the kickstart lever is a nut bolt which you must unscrew.
- but before you do that you need to mark the precise position on the lever axle with a permanent marker - after removing the bolt you can tear off the lever (use WD40 and wobble action)
To work on an ET2 engine, there in no need to remove the body parts on a 2005 ET2 Vespa 50cc, as most maintenance tasks it can be performed without disassembling the body parts.
moved you vespa, no Shanghia here.
you wired it wrong, and not only that fuses left out of cicuits.
fuel + wires burning is never safe to mix
so find real help in a real shop. for scooters.
Press the lid down as you try to unlock it. The jacket is probably causing the lock to bind.
Please add 'make model (what it is)' to all questions. I moved from the Seat category, they are a Spanish car manufacturer. You may be talking about a mobility scooter, but Vespa has a place in my heart from the late 1960s.
worn rollers!
service-kit for every 12'500miles:
