Scooter drinking petrol?

Question

My scoot just seems to drink lts petrol.. My 2-stroke oil ls fine!

Thanks for any suggestions!

Answer 1

There is something strange here, you say that the 2 stroke oil consumption is fine but that it is drinking petrol at a high rate. That would indicate that the problem is not in the engine itself, as the two stroke and the petrol get mixed before they hit the cylinder, so don't start looking at rings etc just yet.

Are you sure it is not leaking out some where? If it has a vacuum operated fuel tap then check around it, as maybe there is a leak that only shows when the engine is running and thus you are moving, so won't see it leaking out.

Have a good look at the system by removing all body work to allow you to see the fuel pipe run from the tank to the carb, take the bike outside and start it up. Rev it hard and keep a good eye on things to see if there are any tell tale signs of a leak. It may take a while to appear but that would be my guess from the limited information that you have given us but the data about the 2 stroke oil was very relevant.

Cheers and good luck

Answer 2

you dont say whether this has always been the case and what make / model / engine size it is. If you cane it everywhere then it will use a lot of fuel, when I had an RXS-100 and I used to flat out everywhere £5 used to do for about 80 miles (and this was in the 65p a litre days)

If it hasnt always been a petrol-junkie then check the following:-

Exhaust baffles and couplings - if these are loose it can cause a rich mixture

Exhaust pipe and silencer - a small hole in these can also cause a rich mixture

Carburettor seals and fuel pipes - check these for leaks and cracks as this can often be a source of trouble. The giveaway here is a strong smell of petrol. Check around the fuel tap as well

Carburettor jets - this one is really a job for a pro, but if the jets are blocked (they get this way sometimes as a result of all the c**p in the petrol storage tanks at service station) this can cause high fuel consumption

Crankcase seals - Drain the oil from the gearbox. If it smells of petrol then the crankcase seals need replacing and soon, when petrol is leaking through the crankcase seals it will eventually reach a point where the bike wont start (as happened with my first bike)

Air filter - If its clogged or dirty this is another reason. If it is a paper type and its heavily clogged then it must be replaced. If its a sponge type and its clogged then you can actually clean it by first rinsing in petrol, then soapy water but make sure it is bone dry before you put it back in!!! Despite what anyone else says, resist any temptation to run it without an air filter!!

hope you get it sorted

Answer 3

Always, give year, make, engine size and model # when asking questions. We need all of that info to give an informed answer.
How many miles on the odometer would have been helpful.
Probably needs piston & rings.
Check the compression.

Answer 4

nice, i think scooter drinks diesel....
very stupid ques..