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Wayne
Wayne, Engine Rebuilder
Category: Small Engine
Satisfied Customers: 8456
Experience:  many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines
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My 25 horse kohler engine pops and backfires under load

Customer Question

my 25 horse kohler engine pops and backfires under load
Submitted: 9 months ago.
Category: Small Engine
Expert:  Wayne replied 9 months ago.

Hi I'm Wayne

I will try to help you with this

what is the age of this engine

is it used under heavy conditions

let me know , Please

Customer: replied 9 months ago.
14 years old. used under heavy load
Expert:  Wayne replied 9 months ago.

Thank you for that

This is indicating that the valves

or lifters are worn

I suggest to do a valve replacement, and the lifters

they are Hydraulic, so no adjustment

I hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

Customer: replied 9 months ago.
my compression is 90 lbs. on left cyl. and 120 lbs. on right . cyl. left cyl.is dead
Expert:  Wayne replied 9 months ago.

Thank you for that

if one side is dead, squirt some oil in the plug hole and try again

see if it will raise a little

Customer: replied 9 months ago.
have to call back later . hope there's no charge.i don't havea compression gauge right now
Expert:  Wayne replied 9 months ago.

Hi

There is no charge after a accept, for follow up

but you did request a phone call, that is a extra charge

do you still want me to call