Got a 1983 XC 180cc yamaha riva scooter ok bought it from a person ok did not know it leaked gas next step it was that filter below tank so tighten that part so now only put about 1/3 of fuel about 12minutes still leaking below scooter below the carbeutor ok i gave up on the situation so now i take another carbeutor from my baja scooter 2have it installed but its 2small back 2the orginal carbuetor am seeing something which below the carbeutor there is like 4more outlets for gas air or something which me dont know it missing some part that belong at the side of the bike perhaps that need 2b hook up with the carbeutor so need detail scamatic so i can know where all of this 9 line air fuel all go to but not only that am gonna need to buy that missing part as well

SOURCE: 2000 Yamaha R6 leaking gas - coming out of winter

this is a carb model yes? if you stored bike with fuel tap on then it could be your carb floats stuck. there is nowhere on the engine itself that gas would be going. is it dripping from the tank? fuel petcock? fuel pump (probably under the tank) ethanol in gas can completely screw up pumps.

if it's a carb problem shut off gas, remove aircleaner let fuel in carbs evaporate for a week. get some Berrymans B12 spray carb cleaner and get a bunch of it in there, it will break down the gum/varnish from the gas. also get Berrymans B12 fuel additive and put some in the tank. re-assemble and see how it goes.

SOURCE: gas leak from bottom of carburator

The line you are talking about is the carb overflow line. It does not connect to anything. It sounds like the carb needle valve or carb float is sticking in the open position allowing fuel to constantly flow into the carb. You should take the carb apart and examine the two parts I mentioned.

Ned C Cook

• 3433 Answers
• Posted on May 21, 2009

SOURCE: Leaking Fuel tap (petcock)

This sounds like a vacuum lock pet ****. 3 position? run, prime,and reserve? If you have it on pri, You will fuel running or not. If set on run, then you will only pass fuel when engine is running, and of course res. when tank is used up. Is this leak at the valve? or from the tank or internally flowing? Tis should also be a gravity feed fuel system, please correct me if I'm wrong. good luck. Long fuel lines are not prefered on gravity feed systems.

Steve Brown

• 688 Answers
• Posted on Jul 21, 2009

SOURCE: Fuel leaking into crankcase on 2001 Honda CBR 600

it's probably leaking from the carb and down the cylinder into the crankcase.
it is probably due to a stuck float in the carb. take the float bowl off and make sure it is clean. the float can also be full of gas not letting it float up and stop the gas flow. the carb will fill up and leak wherever it can which is likely the case

SOURCE: Fork seal replacement on 82 yamaha 750 seca

On the top and bottom parts of the triple tree either both or one will have bolts. First take the fender off. Take the front tire off. Loosen the bolts on the triple tree. They should slide down. If not you have to get a rubber mallet and tap on the top of the fork and twist the fork as you are doing this. Once it is out, pull the dust seal off the top of the lower fork. There will be a clip inside, take the clip off drain the oil out of the top or bottom depending on how the forks are made. Push the fork tube down into the lower fork slightly, pull both apart with a firm tug and they should separate.

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