PP4218a chainsaw carb adjustments.

[1947]

What is the starting adjustments after repair for a Poulan Pro chainsaw modal #PP4218a? I had it running but it wouldn't idle. so I started adjusting the L & H adjustment screws and now it won't start.
So how many turns should I back them out after running the in all the way?

 

[ILENGINE]

The old adjustment used to be 1 turn out, but some of the newer carbs run 3 turns out. So it is a guessing game.

 

[Boobala]

What is the starting adjustments after repair for a Poulan Pro chainsaw modal #PP4218a? I had it running but it wouldn't idle. so I started adjusting the L & H adjustment screws and now it won't start.
So how many turns should I back them out after running the in all the way?

Doesn't the carb have an IDLE screw ?? ....... separate from the Low/speed ...High speed jets ...??

 

[primerbulb120]

I'd try 1 1/2. If that doesn't work, try 2.

This carb has a separate idle speed screw, but if the mixture isn't adjusted right it won't idle no matter what you do with the speed screw.

 

[1947]

1 1/2 allowed me to start and make needed adjustments. Thanks to all!

 

[Boobala]

1 1/2 allowed me to start and make needed adjustments. Thanks to all!

AND WE thank you for posting the outcome...it may help someone else down the line ... Boobala

 

[primerbulb120]

1 1/2 allowed me to start and make needed adjustments. Thanks to all!

:thumbsup:

 

[able43]

Just helped me, thanks and all the best