tuning/modifying an ms 390

[william127]

Ms390 is a big semi pro plastic chainsaw saw! Leave it alone as you will only ruin it.

 

Based on the advice given ill just have a go at the muffler and the tune up the carb will need afterwards, I can always change the muffler back again. Thanks, William.

[Eddy_t]

Ms390 is a big semi pro plastic chainsaw saw! Leave it alone as you will only ruin it.

 

As opposed to a ms360/1/2 which is a big plastic pro saw?

 

 

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[Stubby]

As opposed to a ms360/1/2 which is a big plastic pro saw?

 

 

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[Eddy_t]

 

Tbf the 290's at work are good saws, bit underpowered but if you saw the muffler outlets, you would understand why, just a basic, baffle remaining mod can up the performance by 20 odd percent, they're not much different to a 280/380

 

 

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[william127]

Quick update, I drilled out the muffler a few months ago, then I screwed up the carb settings trying to get it to run right:thumbdown then I left it in the shed for a few months. Last week I dropped it of at a local garden machine shop, they tuned it up, replaced the plug and filter, repaired the back case and generaly cleaned it up for a£50:thumbup1:

I picked it up on Friday on my way to take out a 30ft cherry and used the saw, what an impovment:thumbup:really pleased with it:001_cool: