Scag Tiger Cat Issue

walker45

LawnSite Member
Location
va
I have a 27HP Kohler 61" Tiger cat recently when I mow doesn't happen everytime after I am mowing for a little while the engine sounds like it starves for gas and bogs down. I have replaced filters air and gas fuel pump and replaced the fuel valve that changes tanks. Sometimes it picks back up other times it doesn't, can bring it back in go back out and mow an hour without any problems. Anyone have any ides what to look at.
 

AlohaMowing

LawnSite Senior Member
Location
Hilo, HI
What you describe can happen when the deck becomes clogged. If you are mowing dense, wet, long vegetation even the Scag decks can clog and the engine bogs down until the clog blows free, or the engine can even stop. This is especially true if you are mowing at a low deck height and if you have the discharge chute in place.

Take a look at the underside of the deck to make sure you do not have a build up of grass sticking there. If you do, use something like a 3" paint scraper to clean it. At the first sign the engine is bogging down, stop and lift the deck to see if accumulated grass blows free.
 
OP
W

walker45

LawnSite Member
Location
va
What you describe can happen when the deck becomes clogged. If you are mowing dense, wet, long vegetation even the Scag decks can clog and the engine bogs down until the clog blows free, or the engine can even stop. This is especially true if you are mowing at a low deck height and if you have the discharge chute in place.

Take a look at the underside of the deck to make sure you do not have a build up of grass sticking there. If you do, use something like a 3" paint scraper to clean it. At the first sign the engine is bogging down, stop and lift the deck to see if accumulated grass blows free.

Deck is clean no buildup it may run 30 minutes then start to bog down doesn't shut off sounds like it is starving for gas. Restart again ans may not happen at all.
 

hal

LawnSite Fanatic
Location
Georgia
How many hours on it? Have you looked at electrical? Sounds like it is heating up something, like coils, spark plug, connections, fuses.....
 

prezek

LawnSite Senior Member
Location
Baltimore, MD
My money is on a bad coil. I’ve had it on 2 different Kohlers this year. When it happens, try pulling plug wires one at a time. The bad side should have no or very little change...the good one will cause the engine to die most likely.
 
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