Try adjusting the screw on the top of the linkage on the offside carb.
You can see it on the third picture of:-
Difflock :: View topic - Su Carb Id help
Directly up from the dish in the centre.
Seems to work on mine
You can see it on the third picture of:-
Difflock :: View topic - Su Carb Id help
Directly up from the dish in the centre.
Seems to work on mine
chris200100
New Member
Is your choke adjusted correctly? That could
Be the cause
Be the cause
chris200100
New Member
To me it sounds like it's your choke, have you checked the adjustments on the carbs for the chokes. And the arrows all line up. I take it you got su carbs.
discool
Well-Known Member
Presume that u have tried adjusting the idle speed down when the engines hot and so can idle normally.
if u did then the cold start idle would be zero maybe but then the choke (manual or automatic) if adjusted correctly would give u an idle until the engine warms up and the choke can be pushed-in in your case.
if u did then the cold start idle would be zero maybe but then the choke (manual or automatic) if adjusted correctly would give u an idle until the engine warms up and the choke can be pushed-in in your case.
Last edited:
discool
Well-Known Member
Going back to my carb days, the only temperature sensor/ switch was for the dash temp gauge, so no bearing on the running of the engine.
To save me getting my manuals out what other temp switch do u have?
Also as a thought do u have standard air filter/s fitted and not ones with with the emissions gubbins that were fitted to some engines in the past?
To save me getting my manuals out what other temp switch do u have?
Also as a thought do u have standard air filter/s fitted and not ones with with the emissions gubbins that were fitted to some engines in the past?
discool
Well-Known Member
Various emission items that work via bi-metal and vacuum controlled valves and are now always done away with, as they never worked and caused problems.
Could it be the timing not unless it's been altered.
chris200100
New Member
Have you taken off the throttle link bar that connects the two carbs together?
And then in unscrew each idle screw.
Where abouts are you from??
And then in unscrew each idle screw.
Where abouts are you from??
chris200100
New Member
Shame your not local to me as I would have had a look at your carbs.
Which idle screws have you been adjusting. There's three idle screws.
There's the one common one on the throttle link bar, and there's one on each carb.
And each carb has a choke adjuster too with a link bar that needs adjusting too.
Which idle screws have you been adjusting. There's three idle screws.
There's the one common one on the throttle link bar, and there's one on each carb.
And each carb has a choke adjuster too with a link bar that needs adjusting too.
chris200100
New Member
Sounds like your carbs need a full set up to be honest.
that screw you've been adjusting is the very last step if you can't slow it down with that then they need to be fully setup.
it's not to hard to do but you need a carb balancer and you need to do step by step.
that screw you've been adjusting is the very last step if you can't slow it down with that then they need to be fully setup.
it's not to hard to do but you need a carb balancer and you need to do step by step.
