84 2pg not running right after HEI install

1989Marathon · 07-24-2014, 08:16 PM

1. Pull the plug out of the head and check the spark while turning the motor over. With the HEI, it should have a very good consistant spark.

2. Check for any air leaks between the carb and the block.

3. Check to see if the throttle plate inside the carb is doing what is supposed to. Closed with the pedal not pressed, and fully open with the pedal all the way down.

4. Check to see if the choke plate inside the carb is doing what it is supposed to.

5. Check the reed cage to see if the reeds are closing completely.

It sounds like the fuel pump is delivering enough fuel if it is squirting 6".

07-24-2014, 08:16 PM	#11
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: 84 2pg not running right after HEI install 1. Pull the plug out of the head and check the spark while turning the motor over. With the HEI, it should have a very good consistant spark. 2. Check for any air leaks between the carb and the block. 3. Check to see if the throttle plate inside the carb is doing what is supposed to. Closed with the pedal not pressed, and fully open with the pedal all the way down. 4. Check to see if the choke plate inside the carb is doing what it is supposed to. 5. Check the reed cage to see if the reeds are closing completely. It sounds like the fuel pump is delivering enough fuel if it is squirting 6".
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

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