038 Warm start help

[Nick B]

My 038 starts and runs OK But when it is hot it will sometimes cut out

and it will not start when it is hot any ideas

 

It has new plug and filters Piston & rings are not Marked and Saw is clean

no sawdust on the fin or cases

[Mick Stockbridge]

The next time it happens remove filler cap and replace, if it starts you may have a blocked tank breather creating a vacuum.

[THE88MAN]

The next time it happens remove filler cap and replace, if it starts you may have a blocked tank breather creating a vacuum.

that's worth a try,my old jonsereds used to do that regular,unscrew the fuel cap and would virtually pop in your face

[Nick B]

I have done that did not help and no sign of a vacuum any other ideas

[Dean Lofthouse]

I the same symptoms and it turned out to be crankshaft seals letting out the bottom end compression, new crankshaft bearings and seals.

 

Just take off the flywheel cover and check see if theres a bit of play up and down on the flywheel, if not they should be ok

[Nick B]

Thanks I will look at that in the morning

The saw cuts fine for about 20 mins been using it today to fell and ring up a 30" Dia conifer then it just stopped almost like fuel or being turned off

I left it for 20 mins while we chipped up and it went again lasted about 15 mins then stopped again

[tree_beard]

next time it cuts out, check the spark....

 

 

i would be suspicious of a bad coil

[Jonesie]

Sounds like your coil is breaking down when hot. Next time it cuts out check the spark with the same plug from it. Leave it 20mins or so check the spark again.

[Dean Lofthouse]

next time it cuts out, check the spark....

 

 

i would be suspicious of a bad coil

 

Yes, if it's just a sudden cut out I would check that first

[Nick B]

I will look at that Thanks for your help

can i still get a coil for the O38 & what sort of cost