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PP4218a chainsaw carb adjustments.

#1

1

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?


#2

I

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.


#3

Boobala

Boobala

1947 said:
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?
Click to expand...

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


#4

primerbulb120

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.


#5

1

1947

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


#6

Boobala

Boobala

1947 said:
1 1/2 allowed me to start and make needed adjustments. Thanks to all!
Click to expand...

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


#7

primerbulb120

primerbulb120

1947 said:
1 1/2 allowed me to start and make needed adjustments. Thanks to all!
Click to expand...

:thumbsup:


#8

able43

able43

Just helped me, thanks and all the best


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