any one got any ideas or thoughts for this ?

[rbgaz]

hi all, took scoot out for short ride and was splutering till i got enough revs up and it would clear so thought it was just still cold done another couple miles still doin it so i pulled over and gav it few blips like u do with the throttle to try and clear it , then it sounded like a backfire and dies on me, changed the plug and kicked it over now it fires an runs for 1 or 2 seconds and thats it , pushed it home and swaped and tested stator,flywheel,coil, lead, 5 plugs , 3 caps still same , so now the carb checked petrol flow that was fine carb is filling with fuel , cleaned all jets and they werent blocked , swaped an tested needle an slide, checked choke was going on an off , still same , but i hav noticed excessive vapours coming out of the carb when im trying to start it, but plug isnt really badly wet , so im thinking now hav the reed valves bust or not workin in some way ? your thoughts gents please

[Dazza]

Could it be stale fuel?

[sean brady scooters]

ignition /green wires shorting out in handlebars...?

remove green loom wire from coil to isolate and check..

[rbgaz]

fuel only couple days old, hav tryed removing green wire still same

[sean brady scooters]

big end bearing gone .....?

[thackers]

Have you checked your bulbs to see if they've blown? It could be your regulator, when mine packed in i lost power with the spluttering etc.

[rbgaz]

bulbs fine, if the big end bearing had gone wolud it not sound really bad ie crunching and grinding typs noise ? when it fires for them couple seconds it sounds fine, anyone on here had there reeds mess up ?
startin to lose the will to live lol when it fires into life it dies soon as u try to giv it throttle as if theres no fuel ?
p.s it only backfired the once when it first died, it dosnt do it when it fires up for couple seconds

[sean brady scooters]

ok then try this...
pour a couple of CC,s of petrol down the throat of the carb....
if all else is ok ,it should fire up a run for a bit....this would show that the prob maybe fuel supply related.

also ,does compression seem ok,
a dropped ring could be the cause....

[rbgaz]

k done that still same , looks like theres more coming out the carb than going in just big vapour fuel as if the pertol cant get past the reed block ?

[sean brady scooters]

looks like you will just have to strip it then....
but before you do .....just rotate flywheel back and forth by hand.....just to see what you may hear or feel.