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Another quick update, it seemed to get progressivly worse the more I tried and eventually I concluded that it was, in fact, fuel starvation. It took ages to get fuel pressure and often made the battery go flat trying to start it so I mounted a remote electric fuel pump in the right hand dummy...

Update on the problem for anyone who is interested. I checked for leaks with a spray and there was no change in the engine revs so it would seem that all is tight. I changed the pilot for a 65 jet and there was a slight improvement but then I tried an 80 jet. Much, much better, engine ran clean...

I know it is on another forum but I have posted the build of the whole thing here https://ngwclub.com/forum/viewtopic.php?f=30&t=64616

Still trying to find information on the power valve, found this which might help https://www.carbparts.eu/exploded_view/WEBER_32-34_DFT It looks like my carb does have one, the top picture shows a 3 screwed cover plate on the carb side below the float bowl. What does it actually do in the...

Thanks for your complimentary comments joedrum, gives me a real boost in believing in myself. I don't know what you describe as a power valve and where it goes on the carb. The only power valve I have experience of is in the exhaust systems of Yamaha 350YPVS or the Exup Thunderace and these are...

Thanks joedrum, here are a few pictures to show the conversion

Thanks for your advice kerryb, I will try this test but there is no hole in the butterfly to squirt gas through though. Also when the engine starts to die, if I open the butterfly to allow more air in without pumping the accelerator pump, it just dies. If I squirt gas in then it comes back to life.

Thanks for your input joedrum, I have read it but I am still confused. I took the original 4 carbs off because of crap mpg and put the single Weber on. I have not tried it on the road yet as I cannot get it to run on the slow running circuit of the carb, it will run above 3k just fine but as...

Hi Guys, I'm new to this forum and seeking advice. I have been through the Carb thread but not found a definitive answer so the mods can redirect my questions if necessary. I have a GL1000 trike conversion I have done myself and it has run fairly well for 4 years since I did the conversion...