Super flooded Kohler 25hp engine

[Lesterz]

Hi to everyone on the forum. This is my first post here.

I have a Husqvarna ride on mower with a Kohler PS SV730-0022 engine. Twin cylinder, gasoline, 25hp.

It will not start & I have removed the air filter and I can see fuel down both sides of the air intake (if that makes sense). When I shake the mower this fuel sloshes around & some has actually spilt out the top of the air inlet.

I assume that whatever regulates the fuel flow in the fuel pump?? is no longer doing its job & fuel is just running into the carby.

Can anyone give me a heads up on what to do next or is it a job for the mower shop?

Cheers from Australia

 

[bertsmobile1]

Time to pull the carb off and clean the float needle and seat.
Fit it without the float bowl attached and hold the float up with your fingers when you crank the engine, checking that no fuel drips out.
Remove both spark plugs, place some rag over the holes and get some one to crank the engine to remove excess fuel in the cylinders.
Keep the plugs well out of the way or risk singed eye brows.
Change the oil it will be contaminated with fuel.
I like to fit an inline fuel tap like Victa did as standard to prevent a stuck needle doing the same again.

 

[Lesterz]

Time to pull the carb off and clean the float needle and seat.
Fit it without the float bowl attached and hold the float up with your fingers when you crank the engine, checking that no fuel drips out.
Remove both spark plugs, place some rag over the holes and get some one to crank the engine to remove excess fuel in the cylinders.
Keep the plugs well out of the way or risk singed eye brows.
Change the oil it will be contaminated with fuel.
I like to fit an inline fuel tap like Victa did as standard to prevent a stuck needle doing the same again.

Thanks Bertsmobile1. I will give that a go tomorrow & see what happens.

 

[bertsmobile1]

Check the dip stick oil level and also smell the oil.
If it is high & smells of petrol then you will need to change the oil now and after the first use.
Change the filter on the second oil change as well.
Contaminated oil does damage big time in very little time.

Down side is Kohler carb parts are expensive because they use really good carbs.
Fit that tap & when you have finished mowing for a while turn it off and starve the engine to prevent the same thing happening again.
You must be up the top somewhere, nothing to mow down here except fire weed & sticky nightshade.

 

[ILENGINE]

i am not a fan of cranking the engine to expel the fuel from the cylinders. Prefer to use compressed air to clear the excess fuel. Have had more than one case where the spark plug was in my hand and removed from the mower, and when the engine was cranked had the fuel ignite. So either the spark is jumping a long distance to ignite the fuel, or I am getting static discharge causing the poof with a 3 foot long flame.

 

[bertsmobile1]

Very good point.
But it is winter down here so not that much chance of fuel vapourizing enough to ignite.
Had it happen once to me so now I use those spark testers I am so fond of to shift the plug 6" away from the plug hole.
I suppose I could have mentioned that but I thought the singed eyebrows would have been warning enough.