SigSaurP229
Commander
- Joined
- Oct 1, 2008
- Messages
- 2,123
Bought a motor several months back just for curiousity ran it three or four times. Suppossedly a good runner and regularly maintained. Took it out one day and it just stopped getting fuel.
SOOOO Here we go.
Things done so far.
New Gas Tank
Brand new fuel lines all the way from the Carb to the gas tank including primer bulb Primer Bulb does get rock hard after four pumps
Cleaned carbs rebuilt with new gaskets.
Fuel Pumps are on the side of the carb and were rebuilt when doing the carbs
Weighed floats they are within spec 7 grams
Replaced Needles and Springs.
New Water Pump impeller.
Compression Check 122 124 123 121
Adjusted mixture screws to 1 and 1/2 turn out.
Motor will start and run for a few seconds and then die.
Adjusting the mixture screws makes no difference.
It is acting like the bottom carb is not working.
Both butterflies open and close at the same time both seal about a 1/16th of being totally closed.
Motor will start and run and stay running if I hold the butterfly slightly open on the bottom carb.
What would the most likely cause be.
Good strong fat blue spark on a four cylinders.
Maybe a float adjusted wrong? What else?
SOOOO Here we go.
Things done so far.
New Gas Tank
Brand new fuel lines all the way from the Carb to the gas tank including primer bulb Primer Bulb does get rock hard after four pumps
Cleaned carbs rebuilt with new gaskets.
Fuel Pumps are on the side of the carb and were rebuilt when doing the carbs
Weighed floats they are within spec 7 grams
Replaced Needles and Springs.
New Water Pump impeller.
Compression Check 122 124 123 121
Adjusted mixture screws to 1 and 1/2 turn out.
Motor will start and run for a few seconds and then die.
Adjusting the mixture screws makes no difference.
It is acting like the bottom carb is not working.
Both butterflies open and close at the same time both seal about a 1/16th of being totally closed.
Motor will start and run and stay running if I hold the butterfly slightly open on the bottom carb.
What would the most likely cause be.
Good strong fat blue spark on a four cylinders.
Maybe a float adjusted wrong? What else?
