Scooterotica

hi,my lambretta gp 175 starts 2nd kick from cold,no problem,runs great then when its switched off and left for a few minuets it wont start again,stinks of petrol like its flooded,happened this morning ,had to sit and wait 20mins in the p1551ing rain,then the f---er went again,im switching the tap off and the fuel cap is breathing ok,
any sugestions welcome, brian.

electronic ignition? if so pick up's dead....

yes mate it does have electronic ignition,if the pickup is dead would it not run at all ?
brian.

when it won't start when its hot, do you have a spark anyway?

If yes, then its probably carb or rings or seals

If No- then its probably ignition side.

When it happens next time check out the spark and report back on here please

Chris

im pissed off with it at the moment,its a fully rebuilt motor with new 12v elec ign,next time I take it out il take some tools,
brian.

just went and had a look at it,now it wont start at all but it does have a good spark,
brian.

OK

carb- what carb is on there? jet / slide/ atomiser etc sizes etc

carb is a new jetex 22mm,dont know what sized jet,atomizer,need to take it off and check,
brian.

shouldn't really happen on a new carb (jettex) but.

check if the plastic float is moving properly, they have a tendency to rub on the side of the bowl or jam on the swivel pin.

Two likelyhoods.
One you are screwing the throttle open on hot starts, causing flooding.
Or the pilot jet is oversized. Jetex will work with a 42, 43, 45 or even a 48. You need to find out which is best.