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| previous 23 HP briggs fuel problem http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=58936 |
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| Author: | joesoutfishing [ Sat Dec 27, 2014 3:11 am ] |
| Post subject: | previous 23 HP briggs fuel problem |
I posted earlier of my 23 briggs / mikuni fuel problem. I've diagnosed to the motor receiving too much fuel. After several hours, the plugs fail. They are wet when I check after changing and running a little bit. Can someone give me a run-down of possible causes for this, so I can go through the motor? I checked the valve clearances yesterday to ensure they were still tight and correct, and made a minor adjustment. Also, I believe the throttle cable is correct, as it is closed fully within the carb when idling. My fuel / air mix screw on the carb seems to need to be turned way out for the motor to idle correctly. I know the factory setting is like 1 1/2 turns, but, at that setting, my motor is revving really high. I need to back it out another couple full turns to get it to rev down. That seems weird... Any suggestions? |
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| Author: | mud slinger 69 [ Sat Dec 27, 2014 4:47 am ] |
| Post subject: | Re: previous 23 HP briggs fuel problem |
Re jet to a smaller size? |
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| Author: | cb5331 [ Sat Dec 27, 2014 9:28 am ] |
| Post subject: | Re: previous 23 HP briggs fuel problem |
| Author: | deadbird8 [ Sat Dec 27, 2014 10:46 am ] |
| Post subject: | Re: previous 23 HP briggs fuel problem |
It should idle fine at 1.5 to 1.75 turns out, set the idle there (engine warmed for 5 mins). If not, you have another problem and should check the idle jet and float. You tune the Mikuni carb from idle up to WOT. |
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