another mate has heard of doing a conversion on the carb to do away with the diaghram. any ideas?
??
Never heard of that one ! Sounds a bit dubious to me !
And how is a CV carb going to be converted to a Slide set-up ?
As it has been stood for a long time I'd check the compression,as rings can gum up and stick.
Check adjust valve clearances,new plug.
Strip and clean carb.But dont get carb cleaner anywhere near plastic or rubber bits.It eats the stuff !
Check the slide is moving freely in the carb body.
Check the diaphragm for pin holes or cracks.Pull it about whilst holding it up to the light.
Be firm with it.If its alright then reassemble.
Again check to see if everything moves freely.
If the slide doesnt then make sure you have cleaned off all the old stale petrol that has now turned to a horrible laquer type stuff.
Make sure the slide moves to its full extent,and snaps shut under spring pressure.
If it doesnt go up all the way when lifting with your little pinky then the spring is bunched up.
Then looking at the venturi from the air box side you will see an oval type slot at the top of the venturi.
I know its not very nice...put it up to your mouth and give a good hard blow through it.
The slide should raise as you blow then snap shut when you stop.
If it doesnt then recheck your diaphragm.
Also ckeck the petrol tap.Remove from the tank and make sure that is clean and no deposits are restricting the flow.
I know some of this is old ground and has been done before.
But I do know from experience that quite often a carb will have to be stripped and cleaned several times before it will work properly after a long period of being dormant.
Modern,stale fuel is a horrible thing.
Jethro
