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I have a Exmark Lazer Z HP, model #LHPUV4448, Serial No 235939 with a Kawasaki 21HP, model FH641V. The engine will intermittantly turn over and start. It will run for a few minutes and then cut off. When I then turn the key, the engine will not turn over. After a period of time, it will then turn over again and this sequence is repeated.

I replaced the ignition coil, ignition switch, and have temporarily bypassed the mercury safety switch and seat safety switch. The oil level and battery are good. I can jump it and turn the engine over with a screwdriver at the ignition coil.

Any help is appreciated!

ged said:

I have a Exmark Lazer Z HP, model #LHPUV4448, Serial No 235939 with a Kawasaki 21HP, model FH641V. The engine will intermittantly turn over and start. It will run for a few minutes and then cut off. When I then turn the key, the engine will not turn over. After a period of time, it will then turn over again and this sequence is repeated.

I replaced the ignition coil, ignition switch, and have temporarily bypassed the mercury safety switch and seat safety switch. The oil level and battery are good. I can jump it and turn the engine over with a screwdriver at the ignition coil.

Any help is appreciated!

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Your bypassing the safety switch system by doing this.

Start here: Do you have spark when you do the bypass? You obviously have some spark when it's running, so testing for spark should be done when it's acting up.

Rokon said:

Your bypassing the safety switch system by doing this.

Start here: Do you have spark when you do the bypass? You obviously have some spark when it's running, so testing for spark should be done when it's acting up.

Click to expand...

Yes, I do get spark.