Hi,
Thanks for all the suggestions for my problem.(self induced?)
Today I got around to tackling the problem.
I fitted a Yamaha petcock as recommended, it of course worked as advertised. I have never liked vacuum petcocks, why complicate such a simple system.
I put back my shaved plastic washer .076" which is one Mikuni notch, .9mm. The bike ran perfectly with quite an improvement in pick up off idle!
What happened last time- no power- could be due to my putting only a pint of gas in the tank or faulty reassembly of the top of the carb. I did try running on prime but it was the same as reserve. I put a pint of gas in it because I didn't want to have to drain a lot of gas if I didn't like the results.
Does anybody think it is possible to thingy the slide spring when putting the top of the carb together?
Changing the subject:
New Bonneville .com sells no tool seat screws which fit the Suzuki perfectly and of course make the seat removable with "no tools"
Thanks to everybody who gave me the benefit of their experience.!!
Norman