Question about 1994 Cagiva Supercity 125
Hi there I have a '94 Cagiva Supercity with starting problems. Upto recently it was all ok but i have had to have it in the repair show 3 times in as many weeks. Each time it comes back ok and i am able to ride it home (approx 1 mile) and i can then use it for anything from a couple of hours after bringing it home upto a week or so (with a 50km commute monday to friday) with no problems then it cough's, splutters and then dies and then will not start again. For reference the plug and battery are both new and the bike shop seems to think its the throttle cable thats at issue I am slowly loosing confidence in the bike and fear for taking it out anymore :-( Please can someone help.....!!! Many Thanks Drew
I question the repair shop more than the bike. Three repairs in three weeks and all for the same problem and they THINK the cable is the problem? What planet do they live on? Chances are you have some water in the gas. I am not familiar with Cagiva bikes but mechanical principles don't change. I am going to assume the bike has a carburetor and not fuel injection.
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 ).
Drain the carburetor. There is likely to be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.
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 adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.
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Posted on May 20, 2009
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Posted on Jan 02, 2017
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