On my 25 tt only way I can get it to start is to close mixture and choke crap out of it and turn it over till it fires about 20-30 seconds then try to keep it running with the mixture float is set level all clean good gas flow I think it is a holley
Will post picture in a few
I can't get the picture to resize and save any ideas
With the mixture screw closed completely, I'm surprised It will start at all, even with choking.
Is your mixture needle and jet in good condition ?
What throttle and spark position is set when you try to start?
Has your starting difficulty changed from an earlier time?
Ronnie I would check for an air leak somewhere most likely the carburettor gasket if that is not it then try spraying a little WD40 where the intake bolts to the head with the motor running if the motor picks up speed then slows when you stop spraying that is where the leak is.
Bought it about 4weeks ago still messing with it but 2weeks ago drove it to a local car show no problems crept it got a little hot show was 3-4miles from house jet needle look ok will try wd40in morning
If you believe that you have a vacuum leak or valve or other problems causing a vacuum leak or low vacuum, this will help you diagnose it.
It slips temporarily between the carb and the manifold.
Langs carries it.
Ordering parts how can I tell what type of carb I know it is a Kingston but langs has a L and a L4
Here is a picture of a Russ Potter freshly restored Kingston L4 for reference, hope this helps. If your carb still has its nameplate, check it, my carb's nameplate has "Kingston Mod. L-4" on it.
That's it thanks now to spend $$$$
Ronnie, kingstons are easy to rebuild and very reliable. A good friend of mine has been running one since 54 with one rebuild and countless thousands of miles. KGB
I am a new owner of a 1920 touring that has been stored for 23 years. I have rebuilt the L4 carb but it is leaking from the bottom. Back to the bench we go.