Cold starting is an issue on my 1968 420G. It needs lots of Easystart and a very gentle foot to coax it into life. Once warm it runs well and evenly, mixture and idle are set nicely.
So I have read most of the forum’s posts on the ‘hisser’. I undid the Otter switch and checked the solenoid was working. It was. I then tried to start it without the Hisser connected and that was better, but it still idled at very low rev’s and needed as much coaxing into life as before… gentle foot, if pressed too hard too quickly, it died.
Then I got it running by itself at very low idle and decided to re-connect the Otter switch. Initially nothing happened, no hiss and no engine idle change, but then with a throttle blip, the solenoid clicked, the needle sank all the way down and the engine died immediately.
Plugs are clean, no black smoke at all.
I’m thinking the adjustment on main carb as well as the hisser may be too lean…?
I’m going to take the hisser apart to clean/inspect and see if I can find the blow-back valve to see if that may be sticky, though some on the forum state that would not have been fitted on my car…
Then I think I will try adjusting the carbs from step one. I have the manual.
Any other suggestions very welcome.