Husky Chainsaw and Stihl Blower Q's

[CruisinGA]

Had both of these for quite a while. Both still work pretty well, but have annoying quirks that I would like to fix for my dad, who is the primary user.

The Rancher 55 works great and always has, but has always leaked bar oil when not in use, see the case. It will leak out all the bar oil in between uses, but seems to oil the chain fine. Before I tear into it, any parts I am likely to need?


The BR 400 starts and runs fine, except for full throttle. It will occasionally reach top RPM but often won't. Notice the air filter cover is removed, with this cover removed, the blower stays at top RPM more than with it on. This points to an air restriction, but the air filter is clean. Fuel is carefully mixed with fresh, no ethanol gas and Stihl oil. Perhaps I should replace the air filter anyway, and go from there.

Also have an FS 85, great trimmer, no problems there.

Thanks for any help, tips,
Bailey

 

[bigndn]

https://forum.ih8mud.com/workshop-h...4-stihl-saw-leaks-bar-oil-all-over-place.html

Start there. Where's the picture of the Stihl?

 

[CruisinGA]

The Stihl blower?

Thanks for the link. I will check for a clogged vent similar to what D'Animal describes for a Stihl.

 

[bigndn]

The Stihl blower?

Thanks for the link. I will check for a clogged vent similar to what D'Animal describes for a Stihl.

Uhhhhh, yeah, the stihl blower pictured in the picture in post 1.

 

[lcruzrlvr]

BR 400 issues

Had both of these for quite a while. Both still work pretty well, but have annoying quirks that I would like to fix for my dad, who is the primary user.

The Rancher 55 works great and always has, but has always leaked bar oil when not in use, see the case. It will leak out all the bar oil in between uses, but seems to oil the chain fine. Before I tear into it, any parts I am likely to need?


The BR 400 starts and runs fine, except for full throttle. It will occasionally reach top RPM but often won't. Notice the air filter cover is removed, with this cover removed, the blower stays at top RPM more than with it on. This points to an air restriction, but the air filter is clean. Fuel is carefully mixed with fresh, no ethanol gas and Stihl oil. Perhaps I should replace the air filter anyway, and go from there.

Also have an FS 85, great trimmer, no problems there.

Thanks for any help, tips,
Bailey

Bailey,

Check your exhaust filter screen - it clogs with exhaust particles.

 

[CruisinGA]

Bailey,

Check your exhaust filter screen - it clogs with exhaust particles.

Good suggestion. Got the last of the leaves to blow, I'll check that first.

 

[lcruzrlvr]

Good suggestion. Got the last of the leaves to blow, I'll check that first.

Its a spark arrestor - I just removed mine (after drilling two holes in the muffler thinking it was clogged up). Solved the problem right away.

 

[D'Animal]

You can remove the spark arrestor with a pair of needle nose pliers. Some of the olders ones have a clamp on the outside of the exhaust nipped that hold the spark arrestor in place.

You can also pull the prefilter off the airfilter and make sure the filter is not plugged. The spark arrestor plugged for a reason.

 

[CruisinGA]

Last time I used the blower, I pulled the prefilter off and checked the main filter, it's clean as a whistle. Prefilter/no prefilter made no difference in how the blower ran.

Got home and pulled out the blower to start using it, and my dad had already pulled the spark arrestor off. Blower definitely runs better, but still not 100%.

The muffler outlet and the spark arrestor are awfully "wet." Are you thinking a rich mixture could be the culprit and the clogged spark arrestor is really just a symptom, Dan?

Thanks for the help! Hoping to dig into the chainsaw once I get all the leaves delt with. A big pain in a yard full of big, old hardwoods.

 

[D'Animal]

I cannot see if all the tubes are on the blower.

With the blower tubes removed, the back pressure will drop and the RPM will drop.

 

[CruisinGA]

All tubes are on. Whether or not the last tube is on doesn't seem to make a difference. Tried it both ways.

 

[D'Animal]

Time to maybe adjust the throttle cable.

With the engine running, pull the throttle trigger to the wide open position. Look in the area of your choke knob on the carburetor and you will see the throttle lever move. Make sure it is moving to the Wide Open position.

 

[TheJackRabbit]

A big pain in a yard full of big, old hardwoods.

-cruisnGA

You will forgive me if I am not sympathetic to your "plight" we have no hardwood here in the Southern Rockies. Pine, Spruce, Fir, Juniper and the occasional cedar are as good as firewood gets. However, Chinese or siberian elm has been introduced ubt not developed like those great old English elms.

So, if you want to load up all them hardwook logs and send them west...

 

[CruisinGA]

Time to maybe adjust the throttle cable.

With the engine running, pull the throttle trigger to the wide open position. Look in the area of your choke knob on the carburetor and you will see the throttle lever move. Make sure it is moving to the Wide Open position.

It doesn't.

If I have dad squeeze the trigger all the way, there is still a few degrees of movement left in the thottle plate. If I push the plate wide open with my finger, the blower revs to where it should. Suprised the local Stihl guy didn't catch this when my dad had it in there for a "tuneup."

Where do I adjust the throttle cable? I guess it has just stretched over time...

Going to go ahead and replace the air filter and sparkplug as well, no reason not too.

 

[D'Animal]

Grab your T-27 thorx tip screw driver

Remove the three screws holding your starter on.

Remove the spark plug.

Remove the 4 screws holding the big orange housing on. The bottom two are are above the gas tank and hard to find when doing it for your first time.

With the Orange housing removed, you can clearly see the carburetor. On the blower side of the carburetor you will see the cable connected to the throttle shaft.

Follow the cable down to the silver tipped black conduit.You will see a slotted black piece that clamps the cable. Loosen that screw and adjust the cable so the trigger opens the throttle all the way. Snug the screw down and reassemble the unit.

Cables stretch.

 

[CruisinGA]

Thanks!

Still got a few leaves in the trees waiting to come down, so the blower has still got a little more work to do.