Give us a touch lads!

[DAVEYTH]

It sounds like fuel starvation more than timing. I think if it was timing the bike would not give the symptoms you describe.

Ok well what other things do i need to try then, i feel like ive exhausted every possibility fuel wise?

[Traveller]

Ok well what other things do i need to try then, i feel like ive exhausted every possibility fuel wise?

Struggeling a bit at arms length. Is there a fuel tap? If so run the bike up till it cuts out the instantly switch the fuel tap off. Then check for fuel in the float bowl.
Only other thought is its something electrical breaking down as the engine warms up? But you seem to have changed those bits.

[AIRWOLF]

Sounds like fuel starvation but you seem to have covered all the fuel stuff, . . . However this unleaded fuel can leave a gungy deposit in the carb (specially if the fuel tap was left on) and can reduce the effective size of the jet's. ie the brown deposit coats the jets inside, thus reducing the bore.
did you remove the jets to clean them ?

[DAVEYTH]

Sounds like fuel starvation but you seem to have covered all the fuel stuff, . . . However this unleaded fuel can leave a gungy deposit in the carb (specially if the fuel tap was left on) and can reduce the effective size of the jet's. ie the brown deposit coats the jets inside, thus reducing the bore.
did you remove the jets to clean them ?

Yes mate i basically had the carb completely to bits mate and thoroughly cleaned every aspect of it and also replaced a part in it, there was a brass lug that was causing the bike to idle incorrectly.

As you i thought it must have been fuel problem but im really beginning to think its something else, im gutted i cant get it going and i dont want to send it oo an expensive mechanic when im sure if i can get an idea what the problem is ill rectify it.

[datsun fan]

presumably it has been running OK at sometime, revs and power through the whole range?

[DAVEYTH]

presumably it has been running OK at sometime, revs and power through the whole range?

yeh mate it ran fine until i lad it up all dirty and damp for 3 months then started it up washed it too it down the road and its been goosed ever since.

Got to try and get it on the road for next year and work on it over xmas.

[chronyx]

How's the air filter?

[416cc]

Did you have the plug cap checked? You havn't said if you've tried some of the suggestions.

[Windmill John]

Double check float height. Had a similar effect on a Guzzi once. Turned out to be a loose float needle seat, but again, if the float height is wrong, you'd get the same problem.
Why timing? Have you touched it?
Tried a new plug? - breaking down under load.
But, if bike was okay before, the fact that it was left for a while, have you checked all connections for corrosion?