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Jerez 22 leaking
Posted: Sun May 10, 2020 9:58 am
by Fudgy
Had my carb off a few times and replaced the float chamber gasket.
Can't seem to stop it leaking. Bike runs fine.
Better gasket material maybe?
Re: Jerez 22 leaking
Posted: Sun May 10, 2020 10:01 am
by Fudgy
Sorry Jetex 22
Re: Jerez 22 leaking
Posted: Sun May 10, 2020 11:04 am
by cgt75b
Hi
Check that the float pin is fully seated this is critical on Jetex carbs.
Or the other method is chuck the fecking thing in the bin
And buy a decent replacement/Dellorto.
Re: Jerez 22 leaking
Posted: Sun May 10, 2020 2:48 pm
by essexgp
Fudgy wrote: ↑Sun May 10, 2020 9:58 am
Had my carb off a few times and replaced the float chamber gasket.
Can't seem to stop it leaking. Bike runs fine.
Better gasket material maybe?
Where did you get your gasket from? I got some from Glasgow Lambretta couple of years ago, seem slightly thicker and more forgiving, cured my leak on a jetex
Re: Jerez 22 leaking
Posted: Sun May 10, 2020 2:56 pm
by Fudgy
essexgp wrote: ↑Sun May 10, 2020 2:48 pm
Fudgy wrote: ↑Sun May 10, 2020 9:58 am
Had my carb off a few times and replaced the float chamber gasket.
Can't seem to stop it leaking. Bike runs fine.
Better gasket material maybe?
Where did you get your gasket from? I got some from Glasgow Lambretta couple of years ago, seem slightly thicker and more forgiving, cured my leak on a jetex
I must have read your mind.Just ordered one from there before I read your post.
Cheers.
Re: Jerez 22 leaking
Posted: Tue May 12, 2020 12:51 pm
by Monty
Is it leaking from the gasket seal or running down the carb when the engine is not running. All the jetex carbs I have had the gasket is not the problem its the float or needle not stopping the flow when full. Check the float has a bit of play sideways on the pin. they are often a tight fit between the 2 posts and running a file down each side to get a bit of movement will help. 2nd run a drill bit down the hole that the pin fits through the float again to stop it sticking. Next, the needle should be a red tip not black, bit hard to compare without an original one but I had some needles that are a bit short so they don't turn off. Someone Im sure will correct me but the Jetex ones are not the same as the Delorto ones
Re: Jerez 22 leaking
Posted: Sun May 17, 2020 12:27 pm
by Fudgy
Monty wrote: ↑Tue May 12, 2020 12:51 pm
Is it leaking from the gasket seal or running down the carb when the engine is not running. All the jetex carbs I have had the gasket is not the problem its the float or needle not stopping the flow when full. Check the float has a bit of play sideways on the pin. they are often a tight fit between the 2 posts and running a file down each side to get a bit of movement will help. 2nd run a drill bit down the hole that the pin fits through the float again to stop it sticking. Next, the needle should be a red tip not black, bit hard to compare without an original one but I had some needles that are a bit short so they don't turn off. Someone Im sure will correct me but the Jetex ones are not the same as the Delorto ones
Done all that and checked 3 times.Everything is loose and it's the red tipped needle.
It's only leaking in one area not all the way round.
Not taken the carb off and fitted the new gasket as yet.