Carb tuning

[Doyleyburger]

Hi again guys,

Some of you may remember my issue with my husky 141. ( pulse seal was knackered)

Anyway I replaced the pulse seal but the saw is still playing up slightly and I'm pretty sure the carb needs a bloody good tune up.

All filters and spark has been replaced with new !

The saw doesn't tick over nicely at all and pretty much dies down after its started, and seems to smoke quite a lot. The top cover of the saw is also starting to get very warm. (Never did before)

Now this carb problem could be my fault to be honest as my previous chainsaws have always been run at a 25:1 ratio. I'm pretty sure huskys are 50:1 ???

I was told before that this shouldn't be a problem as its better to put more oil in than not enough.

As a novice to all this malarkey I should really take it to a pro to get the carb tuned up but if I can save myself a few notes, and its an easy enough task then I'd rather have a shot at it myself and learn a few things in the process.

So..... Having seen various ways to tune your carb on the web, YouTube etc, I would like you guys to voice your opinions on the best way to do it please.

Regards

Grant

[spudulike]

Firstly, if you are using a deent quality oil then the mix will be 50:1 and if you are using 25:1 then that is the cause for the smoke.

 

As far as carb tuning goes, set bith screws to 1 turn out from fully in and then set the idle speed.

 

I usually then screw in the L screw slowly, the revs will pick up and then start to die, turn the screw out past the maximum revs and as the saw revs start to drop, the note gets sort of poppy and nice sounding. I leave the L screw there, adjust the idle and then rev it out and see how it picks up etc. If it sounds fine, I leave the L screw there and use a tach to get correct max revs!

 

There you go:thumbup:

[Doyleyburger]

Firstly, if you are using a deent quality oil then the mix will be 50:1 and if you are using 25:1 then that is the cause for the smoke.

 

As far as carb tuning goes, set bith screws to 1 turn out from fully in and then set the idle speed.

 

I usually then screw in the L screw slowly, the revs will pick up and then start to die, turn the screw out past the maximum revs and as the saw revs start to drop, the note gets sort of poppy and nice sounding. I leave the L screw there, adjust the idle and then rev it out and see how it picks up etc. If it sounds fine, I leave the L screw there and use a tach to get correct max revs!

 

There you go:thumbup:

 

Excuse my ignorance on this, but if I screw in both to fully loaded, I'm assuming that fully loaded would be turned anti clockwise all the way and then turn them both 1 turn each ????

 

Many thanks

[Wolfie]

Screw them all the way in (clockwise), then 1 turn out (anticlockwise).

[Doyleyburger]

Thank you

[spudulike]

Yeah, as Wolfman Ed says:thumbup: