s3 only running on 2 cylinders

Stef · Post by **Stef** » Wed Sep 23, 2009 8:46 pm

Hi wonder if any body can help

I've got s3a will only run on 2 cylinders its got good compression, carbs been cleaned, have strong spark. No petrol seems to be going into cylinder. Any ideas?
thanks
Stef

the180kid · Post by **the180kid** » Wed Sep 23, 2009 9:39 pm

ave you checked compression on that cyl with compression dial gauge,

is the carb filling with petrol ?,

so the plugs not wet then ?,

oh Hi, and welcome to the board,..

Post by **Wolfie** » Thu Sep 24, 2009 7:38 am

Cosh the carb with your biggest screwdriver....

SAM · Post by **SAM** » Thu Sep 24, 2009 8:19 am

Pilot jet is very small check it! Use air line on air ways. Swap carb over to confirm if carb.

Olde Coney · Post by **Olde Coney** » Thu Sep 24, 2009 9:03 am

Wolfie wrote:Cosh the carb with your biggest screwdriver....

mmmm. the technical approach eh Graham if all else fails Easy Start might help

SAM · Post by **SAM** » Thu Sep 24, 2009 3:00 pm

Louis wrote:swap the carbs around and see if the problem carries over to another cylinder.

I just said that!
Some people!!!!!

Stef · Post by **Stef** » Thu Sep 24, 2009 5:34 pm

I've just striped part of engine down to find out crankshaft oil seal knackered and think the crank may be worn.

simonh · Post by **simonh** » Thu Sep 24, 2009 8:01 pm

maybe all is not lost depending on which seal it is

Post by **Wolfie** » Thu Sep 24, 2009 8:38 pm

Olde Coney wrote:mmmm. the technical approach eh Graham if all else fails Easy Start might help

A tin of easy start isn't as easy to hit the carb with... Screwdriver is definitly better.

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s3 only running on 2 cylinders

s3 only running on 2 cylinders

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