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| Kohler hard to start when hot http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=71361 |
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| Author: | WIWaterFowler [ Wed Oct 04, 2017 7:17 pm ] |
| Post subject: | Kohler hard to start when hot |
My 27 Kohler Command sometimes won't start once it's heated up. I had this issue last year and replaced both coils and cleaned the carb, but today it happened again. Drove for about 20 minutes at part throttle then shut it off. It wouldn't restart. White puffs of smoke from exhaust when cranking. Eventually I got it to start by combination of choke and partial throttle. Got back to the launch and shut it off and tried again. It fired right up. Did this a few times, no issues. I don't get it. Seems like vapor lock. Any suggestions? |
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| Author: | Will C [ Thu Oct 05, 2017 7:05 am ] |
| Post subject: | Re: Kohler hard to start when hot |
The white puffs of smoke make me think it was flooded for a minute. Possibly need a carb clean with a new needle and seat. I would take a spare spark plug with me and the next time it does it remove spark plug cap and plug in the test plug to verify spark wich would verify its a fueling issue |
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| Author: | WIWaterFowler [ Fri Oct 06, 2017 6:28 pm ] |
| Post subject: | Re: Kohler hard to start when hot |
I agree with that theory. My plugs are more black than brown. I don't know how to lean the thing out. I've cleaned the carb numerous times. I'm running 87 octane no ethanol fuel. Gonna try going to a higher octane. I also run just the Champion® RC12YC plugs. Maybe I should change? |
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| Author: | Will C [ Fri Oct 06, 2017 10:33 pm ] |
| Post subject: | Re: Kohler hard to start when hot |
I was thinking maybe the carb is dripping fuel into intake when you turn it off |
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