Hi, I have a HT 131 Pole Saw, The manual says it should max out at 10,500 RPM, I checked it with my Tach and it is only getting to about 9,800 sometimes ten, If I hold it long enough it starts to cut out or break up like there is a rev limiter on it or something. I tried turning the H Speed screw and nothing happens Rpm's barley Change if at all. I can only turn them less then a full turn.
Stihl HT 131 Pole Saw Carb Adjustment issue.
- Thread starter JOE.G
- Start date
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Roll Tide
Trolltide
It is rev limited so be careful tuning it as you will lean it out and not even know. It will turn 10500 without any string on it. Be very careful.
You Mean Chain? It is a Saw not a trimmer, So then how should I set this thing?
Clockwise is leaner and counter clockwise is richer correct? Is there a safe setting since I messed with it and since it has a limiter can't set it correctly?
Clockwise is leaner and counter clockwise is richer correct? Is there a safe setting since I messed with it and since it has a limiter can't set it correctly?
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Clockwise is leaner and counter clockwise is richer. Set high back to full rich stop (counter clockwise) on the H screw. The carb adjustment settings are dependent on which particular carb is installed, C1Q-SXXX. You need the spec number to determine your H and L settings.
I'm thinking that if it ain't broke don't go fixing it.
I did turn it all the way clockwise ( As far as it would turn with the stops anyway ) and it ran bad, I then did turn it all the way rich Counter Clockwise and it did run better then lean. Is it worth bringing it to teh dealer to adjust? I don't want to ruin the saw it cost quite a bit. Or do you think I wouldn't notice much of a difference if I just turned it all the way rich? Thanks
Roll Tide
Trolltide
sorry I missed the pole saw part just seen 131. If you feel that its not running correctly bring it dealer.
Ifishsum
ArboristSite Member
Richer is definitely safer than leaner - if it will run satisfactorily at the richest setting then I'd run it there, especially if you're unsure about it. Giving up a few hundred RPM is better than roasting the top end. You might have to lose the limiter caps to really get it dialed in well - and honestly if you're not comfortable with that I'd probably have it adjusted by a pro.
KenJax Tree
Terraphobic
In the wood.
XSKIER
Addicted to ArboristSite
Joe.g
Your saw not reaching peak rpm may indicate an ignition problem. In playing with my H screw on my HT KM130, it always hits the rev limiter no matter the setting. I just adjust by ear while in the wood. I would think that if you are too rich in a four mix engine, the exhaust valve, piston, and muffler may get sooted, and gummed up.
Your saw not reaching peak rpm may indicate an ignition problem. In playing with my H screw on my HT KM130, it always hits the rev limiter no matter the setting. I just adjust by ear while in the wood. I would think that if you are too rich in a four mix engine, the exhaust valve, piston, and muffler may get sooted, and gummed up.
imagineero
Addicted to ArboristSite
I may be wrong on the 131 here, but I know on the ht 75 the spec is quoted in some manuals as being measured without the bar head on. Presumably it also requres that your stick is straight.
Shaun
Shaun
imagineero
Addicted to ArboristSite
I don't have a 131 manual. I have a couple versions of the ht75 manual. One version states that the adjustment is without the bar head mounted (bare stick). The other doesn't specify. You can probably get a manual in the beg for manuals thread if you don't have one already.
Shaun
Shaun
KenJax Tree
Terraphobic
Go to the Stihl website and click on manuals
