Advice.. Chainsaw newbie and jonsereds 49

[champagnecharly]

Hello,

 

I'm waiting to receive from ebay a £40 jonsereds 49. This is going to be my first chainsaw so I would appreciate a little advice.

 

I've been told it's in working order but needs a sharpening. Service history question were not answered by the fleabay seller.

 

Given it's my first chainsaw, I'd like your advice on what to look out for before I start using it.

 

I've read that these use points so I would be looking to replace with a module. Does anybody know which module to use or where to source?

i've got a carb overhaul kit on it's way..

Any idea what ID fuel lines this requires?

Also what rpm should she be ticking over at?

My first task will be to run a compression test.. What psi should I be getting it to after 1 and 3 pulls?

What concerns me more is the chain mechanism. What should I check. Where are common areas of wear that could cause issues?

Also.. chains are 'relatively cheap' is sharpening really worth the time?

 

Hope you can share your wisdom.

[peatff]

Does it have a chain brake ? If it runs just use it while you look or save up for something more modern they've been out of production for about 30 years so service history will probably be long lost. Chains, bars sprockets and clutches all wear out eventually. Sharpening chains is standard practice and depending on use if you threw a chain away when it became blunt the "relatively cheap" would soon become a matter of opinion when it takes you an age to cut or rather burn your way through wood with a blunt chain for the sake of 15 minutes with a suitable file to rejuvenate it.

[Ray1]

This one? jonsereds 49 spchain saw | eBay Looks alright for £40

 

mike acres has this listed about it Model Profile: 49SP

[Stubby]

Hello,

 

 

Also.. chains are 'relatively cheap' is sharpening really worth the time?

 

Hope you can share your wisdom.

 

Chains are definitely worth sharpening if you want your saw to cut . Once you get the hang of it it will take no longer than fitting a new one !

[fergusonforestry]

if you have a day like I did a few weeks back where I hit stones and wire and crap nearly every cut 'relatively cheap' wont be for long!

[champagnecharly]

This one? jonsereds 49 spchain saw | eBay Looks alright for £40

 

 

mike acres has this listed about it Model Profile: 49SP

 

 

 

Yup, that's the girl.. I'd read decent reviews with regards to these. the one biggest issue in terms of maintenance was that of getting hold of pistons.. hence why I wanted to make sure she was running at correct rpm i,e not lean.

 

Useful info that link.. thanks

 

So no chain brake.. but excuse my ignorance. peatff but why do you ask?

 

Seems that I'll be learning how to sharpen then.. I may buy a new to start as to know how a new blade should be..

 

Any more thoughts/ tips would be appreciated.

 

Any ideas on ignition module that will work?

[peatff]

So no chain brake.. but excuse my ignorance. peatff but why do you ask?

 

Just out of curiosity really as it sounds like you are going to be using it as a firewood saw. Anything without a brake these days is more of a curio or collectors item than a regular user. You say it's your first saw so be careful with it as any kickback will not stop the chain like a modern saw.

[s.varty]

This is your first saw? No chainbreak! Have you had much experience with a saw?

[fergusonforestry]

a chainbrake was available to fit the 49 (if you can find one!) I have one too but it has an intermittent spark, mines just a collectors piece really along with my 621, but wouldn't mind getting them up and running

[champagnecharly]

Just out of curiosity really as it sounds like you are going to be using it as a firewood saw. Anything without a brake these days is more of a curio or collectors item than a regular user. You say it's your first saw so be careful with it as any kickback will not stop the chain like a modern saw.

 

Firewood.. Well yes and no.. 2 trees 8 -10 inch diameter trunks x 20ft to come down and chop up and 1 twice to three times diameter that that needs chopping up. So although not much, enough room for error.. I'll look into chain brake.. i see exactly what it is now/ how works.. Thanks.

 

s.varty.. Experience.. as good as none.. only with a comparatively small stihl and there wasnt much to do.

 

fergusonforestry.. thanks for the tip.. I'll try and search for one.. with any luck like the clutch one from another will fit..

... itermitant spark.. http://www.lilredbarn.net/Jonsered-49SP-Ignition-Coil-and-Chip-s/50073.htm ?

 

My clutch cog has 1 or 2 1.5mm grooves on each tooth.. should I presume that needs replacing?

 

She started like a beast. a fair old grunt to it. Compression was 100,160,180psi 1st,2nd 3rd pull.

Edited June 16, 2014 by champagnecharly