Scag tries to start in " on position ".

Iowa Guy

Forum Newbie
Joined
Jun 1, 2022
Threads
1
Messages
5
My 2008 Scag Tiger Cat tries to start in the "on position ".

When you turn the key to start position it does nothing.

I have 12.7 volts.

I have checked a replaced all fuses.

I have installed a new key switch.

I have replaced the starter and starter solenoid.

I have replaced the relay switch with diode.

Any ideas on what is going on?
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
Threads
64
Messages
24,647
Does it have a "tiger Eye" module ?
Sounds very much like what happens when they go south .
 

slomo

Lawn Addict
Joined
Jul 14, 2019
Threads
76
Messages
4,677
Hope you kept all the old parts that were removed.
 

geelee

Well-Known Member
Joined
Sep 2, 2018
Threads
1
Messages
150
if its a kohler engine there is a diode in the engine wire harness that goes that will cause this when it shorts
 

7394

Lawn Addict
Joined
Sep 5, 2014
Threads
84
Messages
4,608
Interesting..
 

Iowa Guy

Forum Newbie
Joined
Jun 1, 2022
Threads
1
Messages
5
if its a kohler engine there is a diode in the engine wire harness that goes that will cause this when it shorts
Yes,it is a Kohler 25 Hp Command Pro.

Is it possible that diode is in the wire that goes to the starter solenoid?
 

geelee

Well-Known Member
Joined
Sep 2, 2018
Threads
1
Messages
150
the diode is about 2 inch up from connector on engine side. on scag there is no power to ign and carb solenoid with key in crank position so they feed power off starter through the diode, when it shorts it feeds power back to starter in on position. need to cut heat shrink coating back
 

Iowa Guy

Forum Newbie
Joined
Jun 1, 2022
Threads
1
Messages
5
the diode is about 2 inch up from connector on engine side. on scag there is no power to ign and carb solenoid with key in crank position so they feed power off starter through the diode, when it shorts it feeds power back to starter in on position. need to cut heat shrink coating back
Thanks for the information.
 
Top