Isnt it a pain when an engine won't run properly, it seemed to be fuel starvation but not sure.
Petrol tank was dirty - removed, filled with gravel and bounced around and agitated until clean. It was then flushed dried refitted.
New fuel lines all through - check
New fuel filter - check. Old one was full of Shiite.
Small ancillary automatic fuel pump bypassed.
Small in line hand operated fuel pump cleaned. check. That was shockingly full of crud, I was convinced I had found the cause.
The engine will then start but not rev freely, will not pull any power and cuts out.
Previously, the carb had been removed, all gaskets renewed and main jet cleaned, float checked.
Still wont pull any power and I am losing the will to live.
Oh yes, plugs points leads gaps etc all checked and good.
Clean fresh fuel put in.
NOPE, still wont work
Hmm, there are 3 small screws on the carb, one of which is idle speed but I don't know what the other 2 are. I guess mixture and something else. I think from the colour of the plugs and that it wont take large throttle openings that it is running rich but it seems to start better with choke.
So I counted the turns on one screw, remove it, and it is a needle screw. A dammed good squirt of brake cleaner through it and woohoo.
That seems to have done it. Now I have to play gently with the screws to try and maximise performance.
Happy motoring folks
Dave