Hay hay hay
Well-known Member
Need diagnostic help ZTM
2007 Bad Boy ZT 60” zero turn (bought new, 500 hours, now used as a backup, and rougher jobs)
Briggs and Stratton V Intek 26HP
Won’t run consistently. Has started and run, then the next day won’t start.
Sometimes it will start on the key, next day won’t turn over with the key, but will crank with jump to post.
I am beginning to think I have a combination of random, intermittent problems.
So here is what I have tried over the last few weeks.
It had been sitting so I squirted a little gas in the air intake and it fired up and ran until out of gas.
I thought the problem was fixed so I filled the tank…..no start…checked the fuel pump…working fine.
Smelled like it was flooding. (all the while sometimes it would crank with the key, sitting in the seat (but sometimes not)
Changed a couple relays…that helped a few times…then will crank with key/ won’t crank with key started again.
Intermittent problems.?????
I decided to put on a new carburetor…3 hours and 2 cans of wasp spray later new carb installed…turned the key, SUCCESS ! it fired right up a ran mid-throttle setting in the shed for about 5 minutes, but was beginning to miss and back fire slightly. I turned it off. When I tried to restart it….no key crank.
Today it won’t crank with the key, will crank with the jumper, but it won’t start.
Here is my list:
New carb works OK
Fuel pump OK
Battery OK
Starter OK
Problems:
Could the ignition be intermittently? (the miss and backfire makes me think I have a spark problem)
Could the relays be popping in and out, to make the key start work intermittently?
Could a safety switch or relay be turning off the ignition fire?
Should I change all the relays on a 13 year old machine?
I really need this machine for backup mower.
When it runs it is still a very strong engine.
Thanks for your ideas and suggestions
2007 Bad Boy ZT 60” zero turn (bought new, 500 hours, now used as a backup, and rougher jobs)
Briggs and Stratton V Intek 26HP
Won’t run consistently. Has started and run, then the next day won’t start.
Sometimes it will start on the key, next day won’t turn over with the key, but will crank with jump to post.
I am beginning to think I have a combination of random, intermittent problems.
So here is what I have tried over the last few weeks.
It had been sitting so I squirted a little gas in the air intake and it fired up and ran until out of gas.
I thought the problem was fixed so I filled the tank…..no start…checked the fuel pump…working fine.
Smelled like it was flooding. (all the while sometimes it would crank with the key, sitting in the seat (but sometimes not)
Changed a couple relays…that helped a few times…then will crank with key/ won’t crank with key started again.
Intermittent problems.?????
I decided to put on a new carburetor…3 hours and 2 cans of wasp spray later new carb installed…turned the key, SUCCESS ! it fired right up a ran mid-throttle setting in the shed for about 5 minutes, but was beginning to miss and back fire slightly. I turned it off. When I tried to restart it….no key crank.
Today it won’t crank with the key, will crank with the jumper, but it won’t start.
Here is my list:
New carb works OK
Fuel pump OK
Battery OK
Starter OK
Problems:
Could the ignition be intermittently? (the miss and backfire makes me think I have a spark problem)
Could the relays be popping in and out, to make the key start work intermittently?
Could a safety switch or relay be turning off the ignition fire?
Should I change all the relays on a 13 year old machine?
I really need this machine for backup mower.
When it runs it is still a very strong engine.
Thanks for your ideas and suggestions