I have a 2011 Vespa LX150 that has trouble starting every time. Most of the time, it continues to turn over but won't catch; sometimes it just makes a winding noise (like a wind up toy). I can usually get it started, but it takes several attempts, turning the ignition off & back on & letting it turn over until it finally catches and starts. Once started, it runs fine, but if I turn it off to go into a store or the bank, I have the same starting problem, even if it was only off for a short time. The scoot is plugged into a battery tender when not in use, and the battery was replaced last year.

SOURCE: strting problem on my wind 125

what else could it be? I'm with stupida dead battery WILL NOT be recognized by a battery tender thats why the light wont come on. Are you trying to jump the bike using a car that is TURNED OFF? You can hook the 2 batteries together and that will help equalize your bike battery enough that the battery tender will recognize that you are indeed connecting it to a battery or you can buy a battery charger and charge it for 20 minutes (or barrow one) which will be more than enough for the battery tender to recognzie the battery. *edit I should mention that the reason a battery tender wont recognize a dead battery is it must see (feel) electricity from the battery. I dont know all the exact properties as in what votage it must see but if it doesnt see it it thinks its not a battery. A charger will try and charge it no matter what it may be. I mean you connect a charger to a metal bar and it will try to charge it. oh if you hook the two batteries together im not sure the bike will start though it may. I have never tried it with a bike but at work we connect two forklift batteries together for 30 minutes and that gives it enough of a charge for our battery tenders to recognize that its charging a battery.,

SOURCE: trouble starting

use fresh gas, old gas will possibly have gone OFF and gummed up the carb or injector whatever your bike has. get a good fuel system cleaning additive, (Berrymans B12 if you are in the States) also check your fuel filter. is gas getting to the plugs? i suspect not.

SOURCE: engine won't start when hot

First, if you do a push start then put the bike in 2nd or 3rd gear, never in first gear. You will get better results.

Drain the carburetors. There should be a screw on the lower side of each carb float bowl. Remove the screw then replace it after the fuel drains. Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, (not all bikes have a water trap bowl). Turn the gas back on and wait a minute for the carbs to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetors from the engine.

FOR EACH carb > Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
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Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Before putting the slides back in the throat of the carbs, Move the clip on the jet needle one notch lower. Install an in-line fuel filter. Let the float bowl fill then start the engine. This process should get you back on the road.

By the way, after the next store visit, start the bike but don't turn the throttle open. Leave it closed or just crack it open a little bit.
Also, sync the carbs such that the slides on both carbs move at the same exact instant when the gas is slowly increased from idle speed.

Please rate this solution. Thanks!

Arnie Burke

• 7339 Answers
• Posted on Oct 31, 2011

SOURCE: I have a 2006 sportster that won't start; it

its probly worn--get a clymer manual to see if ur comfortable wrenching--