1810 Hard Start After Sitting
My Cub is a 1986 1810 with the Kohler Magnum 18 HP. I've owned it since 1996 and have performed every service done since. The Cub retired to my beach house years ago and returns here in late winter for oil and such related stuff. Sometimes it can sit for 2/3 weeks between uses. A few years back it got hard to start after sitting. That can be remedied by pulling the air filter lids and shooting a squirt of gas into the carb. After the initial start it starts as it should and also runs as it should. The carb should be clean as I hit it a couple of times a summer with Sea Foam in the tank. Now in past research I concluded the gas in the fuel bowl was simply evaporating and it was taking an extreme amount of cranking to get gas back in the bowl. Being it was an 86 and I knew the fuel pump looked original I suspected that. I researched again. I ended up mounting a Holley electric pump that's gravity fed from the tank. I also added a Wix clear filter to observe fuel flow. Alls good there. It didn't solve the issue nor did it help. It is an 86 and still running with an all original engine though. I try and keep it humming. Any thoughts on the hard start issue??? Temps don't seem to matter and even after a 24 hour sit it starts to become difficult and increases with time. It has only had non-ethanol gas ran in it.
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