I am working on my neighbor's Briggs 6.75 HP powered push mower. He had problems with it stalling and not running so he changed the plug, coil, and choke thermostat to see if he could fix it. He then brought it to a local repair place (not a Briggs Dealer) and they replaced the carb with no luck. So I offered to give a look at it.
I have thoroughly cleaned the carb (the repair guy didn't leave the new carb on it) and jet, verified the auto choke is adjusted and working correctly and checked the air gap on the mag/coil. If I pour gas into the throat of the carb I can get it fire off and run as it should. But if shut if off I can not restart it (hot or Cold) without pouring gas into the carb. Without pouring gas in the carb it sometimes will sputter for a few seconds and stalls but never gets up to full RPMs.
I now have put a new primer carb with a primer bulb. If I prime it will do the sputtering thing all the time now. If I hold my hand over the carb and someone else pulls it, I have gotten it start but mostly I still need to pour gas in.
Any I ideas on what to do next?
Poor Compression not bringing in enough gas?
the Compression release getting stuck and not allowing it to go to full compression?
The mower is only 3 years old and does not have hard/ a lot of use.
I have thoroughly cleaned the carb (the repair guy didn't leave the new carb on it) and jet, verified the auto choke is adjusted and working correctly and checked the air gap on the mag/coil. If I pour gas into the throat of the carb I can get it fire off and run as it should. But if shut if off I can not restart it (hot or Cold) without pouring gas into the carb. Without pouring gas in the carb it sometimes will sputter for a few seconds and stalls but never gets up to full RPMs.
I now have put a new primer carb with a primer bulb. If I prime it will do the sputtering thing all the time now. If I hold my hand over the carb and someone else pulls it, I have gotten it start but mostly I still need to pour gas in.
Any I ideas on what to do next?
Poor Compression not bringing in enough gas?
the Compression release getting stuck and not allowing it to go to full compression?
The mower is only 3 years old and does not have hard/ a lot of use.