new member , chainsaw advice

[kier]

Hi everyone , my first post

just to start Im a Farmer , grow and retail xmastrees and still learning about that job too after 22years of trees

 

I'm after chainsaw advice mostly, good or bad I have bought a ms391 secondhand one year old thinking of getting it ported, enough to improve it

but not enough to shorten its normal life, thought I might do it myself but the more I read the more complicated it gets , cost is a concern and I would want a solid result no overheating etc , is it possible to do a simple job myself just to improve the saw ?

 

read also that 32/1 makes a saw last longer than 50/1 oil ratio is it true!

 

I heat my home with log burners and use the saws mainly for that , just incase your wondering why I use a 391, my favourite saw is a Husqvarna 385xp it just cuts so fast its a pleasure to use

probably I need to speak to spud but is there anyone nearer to kent who is good at porting

any advice would be helpful

Kieron

[WoodED]

Hi everyone , my first post

just to start Im a Farmer , grow and retail xmastrees and still learning about that job too after 22years of trees

 

I'm after chainsaw advice mostly, good or bad I have bought a ms391 secondhand one year old thinking of getting it ported, enough to improve it

but not enough to shorten its normal life, thought I might do it myself but the more I read the more complicated it gets , cost is a concern and I would want a solid result no overheating etc , is it possible to do a simple job myself just to improve the saw ?

 

read also that 32/1 makes a saw last longer than 50/1 oil ratio is it true!

 

I heat my home with log burners and use the saws mainly for that , just incase your wondering why I use a 391, my favourite saw is a Husqvarna 385xp it just cuts so fast its a pleasure to use

probably I need to speak to spud but is there anyone nearer to kent who is good at porting

any advice would be helpful

Kieron

 

spud or petemate390xp on here are the dons of uk porting

[Garyjp]

Adding a dash more oil sounds obvious in principle but in reality its just as likely to cause a premature death due to additional carbon deposits.

 

The cost of using an extra 30% of oil in ur mix would outweigh any benefit even if the saw didnt die as a result of an excess of oil. (quality 2t oil aint cheap!)

 

Not to mention extra servicing hassles (fouled plug) and ur eyes streaming due to additional smoke.

 

Use a good quality oil at specified amount by the manufacturer (some saws are 50:1, but can vary...and u need to go by the saw manf....not the oil manf!)

[Rich2484]

Would the husky not be better to port out?

 

I've tried porting once and it went wrong so I'm waiting for a knackerd saw to come along so I can try again.

 

You can post the saw to spud with not much trouble.

 

Porting is more complicated than it looks.

 

If the old stihl is not very powerfull but a old have you tried a service on it and cleaning out the exhaust. Just a simple clean out can make the gasses run more freely without going to the trouble of porting it out.

 

You say near kent. Just where abouts in kent are you? I'm not going to offer to port it for you as I will admit its not my strong point.

 

Have you comp tested the stihl. May be low in comp causing it not to run as powerfull as it should. It is old after all.

[spudulike]

 

Sorry Gary, this is wrong:blushing:, you go by the oil manufacturers recommendation and not what the saw is specified at.

 

Old 1980s saws had a recommendation of 25:1 but modern oils are far better now so they can now be used at 50:1, some specialist oils can be used at 100:1 - Amsoil is one of them!

 

The rest of your post is good though:thumbup:

[Eddy_t]

Just a muffler mod would do, doesn't lessen the life really

[kier]

Would the husky not be better to port out?

 

I've tried porting once and it went wrong so I'm waiting for a knackerd saw to come along so I can try again.

 

You can post the saw to spud with not much trouble.

 

Porting is more complicated than it looks.

 

If the old stihl is not very powerfull but a old have you tried a service on it and cleaning out the exhaust. Just a simple clean out can make the gasses run more freely without going to the trouble of porting it out.

 

You say near kent. Just where abouts in kent are you? I'm not going to offer to port it for you as I will admit its not my strong point.

 

Have you comp tested the stihl. May be low in comp causing it not to run as powerfull as it should. It is old after all.

 

Hi the stihl is 1 year old not had a lot of use by the look of it

 

I have a compression tester and will try to see if it fits

 

Im near Sevenoaks

[kier]

Just a muffler mod would do, doesn't lessen the life really

 

Yes perhaps a muffler mod would the trick

 

thinking of gettng a rev counter are the cheap ones on ebay any good? then it would be easy to see what was making a difference

[BabyBuzz]

Best thing you can do to make your saw last longer is leave it standard and take care of it. If you want the saw to cut faster my advice would be to focus on your sharpening more than anything.

[Eddy_t]

Yes perhaps a muffler mod would the trick

 

thinking of gettng a rev counter are the cheap ones on ebay any good? then it would be easy to see what was making a difference

 

To be fair with a muffler mod all you need to do is rich the low revs up until the chain stops creeping, so no need for a tach