Kohler 20 hp starting problem

[briande]

Have a Scotts brand 20 hp Kohler, 48inch deck mower. Been runnng great for 13 years.

With cold engine, it cranks strong, but wont start until I put some fuel directly into carb. Starts right up then. runs like a champ, and will re-start with no problem after engine is warm

fuel line from tank to plastic fuel pump not leaking. replaced fuel filter - had no effect.

Also checked choke. closing and opening as it should. Fuel is fresh, and I always use Sta-bil with every tankful.

Any ideas of what to check next?

 

[504-1]

Without knowing the complete fuel line set up, I would look for a bad pick up in the tank. JDs are famous for lines coming apart, or falling off completely. I have one right now that will quit running with six inches of gas in the tank, I assume the pick up screen has come off the hose in the tank.

 

[briande]

but it runs perfectly after I get it started...if pickup tube was malfunctioning...seems like problem would be present all the time.

 

[Butch(OH)]

Remove the air cleaner and pull the choke. Then look to see if the choke plate is being pulled all the way closed, I bet it isn"t. Adjust cable at the clamp so it closes all the way.

 

[HCooke]

I have a similar problem with a Kohler 20 hp in a MAX 4 ATV. I deal with it like you do by priming the carb. If I start if every day it is not a problem. Somehow the fuel pump and line loose prime.

 

[JT Britt]

I agree with Butch.I have adjusted a many of mowers that would not start due to the cable being just a little out of adjustment.

 

[briande]

Fixed the problem!

Seems there is a fuel shutoff solenoid (correct nomenclature??) at base of carb.

Removed it, sprayed it liberally with carb cleaner, jumpered it to the battery so I could operate it while holding it in my hand, then reinstalled it.

Works like a champ now. Starts fine...no manual priming required.

 

[Phillip Tibbetts]

Do like somebody else said, make sure the choke plate closing tight.