395 sat in truck in rain started then died

[Normzilla]

Good morning everyone my 390 and 395 have been in back of my truck in the rain. 399 was fine 395 started ran a minute. Then died like it lost spark. I parked it in my shed later it ran fine. What would have gotten wet or caused this? Thanks Norm....

 

[Canadian farm boy]

I’d guess that some water was shorting out the ignition. (Like you hit the off switch) Once the water evaporates the short is gone.

 

[ucm931]

I'd check the wiring, spark plug insulation, and plug boot. May have rubbed through or is cracked a bit somewhere. Water gets in, things shift a bit while running/vibrating and it ends up being enough to ground it out. Dries out and the path to ground is gone.

 

[5000+]

Most likely water got in the shut off switch. Not sealed, easy for water to get in and short to ground.

 

[Normzilla]

Thanks Amigos. Luckily I always carry two saws for that reason. I pulled filter cover all good and dry. But doesn't mean no moisture I guess. On off switch doesn't work I choke or out. But figured it could still ground out of wet

 

[Normzilla]

Just never had that happen before.,and thought what if I was packing one saw and I'm a jam how could I revive it in a pinch

 

[5000+]

Pull the wire off the switch or coil.

 

[5000+]

One time I lightly sprayed off a 257 with the hose, carefull not to direct the shower near the switch. Yep, no spark, pulled the wire, ran fine, blew out the switch , ok

 

[Canadian farm boy]

Just never had that happen before.,and thought what if I was packing one saw and I'm a jam how could I revive it in a pinch

WD-40 dissipates water.

 

[kneedeepinsaws]

Try some compressed air on that switch, it could retain moisture for a while otherwise

 

[Nutball]

My dad would leave his saws outside in the sun and rain, and they still ran, Husqies too.

 

[Stump Shot]

Good morning everyone my 390 and 395 have been in back of my truck in the rain. 399 was fine 395 started ran a minute. Then died like it lost spark. I parked it in my shed later it ran fine. What would have gotten wet or caused this? Thanks Norm....

The 395xp has a little hook in the top cover to hold the spark wire, this can lead to a worn wire and when wet have a short path to ground. I would check the wire for abrasion damage in this area and replace if found.