scag won't start no fire

[daveyk]

Hello,
My 6 yr old Scag tiger cub with 24hp Briggs engine won't start. Replaced battery, solenoid,relay switch, fuses. I'm stumped. Any help will be appreciated. I also jumped solenoid it just turns over and won't fire.
Thanks,
Daveyk

 

[mullins87]

Is it getting fuel and spark? What about a clogged air filter? It has to have all three of those to run. Begin by pulling the air filter to make sure it's getting air. Next pull a plug to check if they are getting a spark. Then make sure the engine is getting fuel through the carb. At this point, your problem could be anything.

BTW: Make absolutely sure you have everything disengaged and all safety switches are working. Accidentally leaving the blades engaged or a bad safety switch will cause these symptoms.

 

[Raw Dodge]

In addition to the above,when your jumping the solenoid,you need to check for spark while its cranking...if you have spark,fuel and compression....only other things i can think of are the fuel solenoid at the carb doesnt have power,or some mice got in the muffler over the winter,and made a nest so tight that the exhaust is blocked and that can drive you nuts(dont ask me how I know this)....

 

[bfcg]

Check your hand brake and switch, chech the PTO switch and your seat switch.

 

[daveyk]

Hi,
Thanks for everyone's feedback. I got it started. I guess when I changed the solenoid, I missed a wire that I found unconnected in the boot. My bad!
Thanks again.
Daveyk

 

[Mad Mackie]

Where recent maintenance has been done is always the first to be checked. I both performed aircraft maintenance and taught aircraft maintenance in the military and I hammered this at my students on a regular basis. I would write exam and quiz questions purposely to make this point across to them. Needless to say if I was caught in this type of situation my students would hammer it back at me, but this was a rare occurance!!!
On many ZTRs, the seat switch is the first suspect as it affects several circuits particularly on machines that have electric clutches. I replaced mine last fall and it is now intermittent. I leave the seat in the up position all winter with a trickle charger on the battery. I keep new seat switches in my parts stash, but there ain't no seat switches in my stash right now!!! My bad!!! HaHa!!!:biggrin::laughing:
Mad Mackie in CT