So ive finally had chance to have a look at the bike today heres what ive done so far - taken the tank of and checked the hoses and fuel tap, this all seems to be fine - i am presuming that the strainer filter which is part of the tap is what was referred to earlier as the in tank filter - any way this was clean and had no holes in it. The foam hasnt come of the underside of the tank and there isnt anything obstructing air flow into the filter or the carbs, however there was some fuel in the bottom of the air filter housing - is this normal? I dont know if i fancy attempting a full carb re build myself but before this happened i did run some redex through the system anyway. I will mention that on the day this happened i had a pillion on the back for the first time - the problem started straight after, dont know if thats relevant or not.
Any more diy ideas or is it off to the garage for the carbs sorting??