One thing I didn't cover that I should have is the difference between the shafts. This one has the original style heavy duty shaft. It is heavier but, much better built. The newer style square tube is lighter and more like a glorified weedeater shaft. I would not recommend buying one of those.
I see Stihl tools used here. Where can these be purchased by the general public? Also, the feeler gauge you showed. I have standard design ones for larger engines. Can those be used?
@@maccurtinequipmentservice8915 Your local Stihl dealer can order those T-Handles. One is 8mm. part# 5910 290 2420. the other is T27 torx. part# 5910 890 2415. They are both VERY high quality. They also sell a T27 for your 1/4" impact but I don't know the part number. The feeler gauge comes with a valve cover gasket if I'm not mistaken. If you want to use a traditional .010 feeler gauge you'll have to trim the tip to fit in the slot of the rocker arm. You should prolly just order the feeler gauge from Stihl tho.... Thanks, Rich
Thanks, the info really helped me on the used HT 131 I bought. Any help for straightening the extended shaft that has a slight bend. I thought about removing it and forcing a pipe through it. Any other thoughts?
great information, I do not own one but I am intrigued by your teachings. one quesiton, how do you tell when valve has "botton out" to insert the gauge. Thanks and God Bless
I watch the rocker arm as it bottoms out and there is a little dwell there. I slide the feeler gauge in and find the point of least resistance, then make the lash adjustment.
@Tim O'Hara that vice is far away from a "stump vice"... stihl sells one similar for about $700. Scott kunz has one for about $300. They are super handy if you do a lot of saw work
In order: Check spark plug for fouling, replace if necessary Check air filter for excess dirt build up Check valves for the gap. This is done in the video Carburettor screws, specifically low and idle screws (if you don’t know what to do with them, the manual tells you what to do to reset) Hope that all helps
@@richardflagg3084 very odd. First time I've heard about this 4 mix engine design. Guy at work brought me a HT 131 to see if I could fix it. Looks like it got water in the exhaust and rusted the rings. Then he yanked on it to free it up. Now it has zero for compression.
@@richardflagg3084 Hello, I have a fs 131 weed trimmer. I'm not able to remove the carburetor because of the linkage. How do I remove the linkage from the white piece that connects to the throttle cable?
@@isaiahmmosleysr.7329 It's not just you. That throttle rod is a bear to remove. Slide the carb towards the end of the studs, open the throttle shaft to wide open and there will almost be enough wiggle room to pry the rod off the white piece, You'll need to use some needle nose pliers to "flex" the throttle linkage.
Show them the Stihl recommended procedure, line up the arrow on the flywheel with carburetor side coil mounting screw head on the correct top dead center set to .004 “ valve lash…!
Yup, that's a win. I'm shopping around for one of these. The video is very helpful. Thanks.
Thanks for showing me around one, been thinking about getting a 131r
One thing I didn't cover that I should have is the difference between the shafts. This one has the original style heavy duty shaft. It is heavier but, much better built. The newer style square tube is lighter and more like a glorified weedeater shaft. I would not recommend buying one of those.
I see Stihl tools used here. Where can these be purchased by the general public?
Also, the feeler gauge you showed. I have standard design ones for larger engines. Can those be used?
@@maccurtinequipmentservice8915 Your local Stihl dealer can order those T-Handles. One is 8mm. part# 5910 290 2420. the other is T27 torx. part# 5910 890 2415. They are both VERY high quality. They also sell a T27 for your 1/4" impact but I don't know the part number.
The feeler gauge comes with a valve cover gasket if I'm not mistaken. If you want to use a traditional .010 feeler gauge you'll have to trim the tip to fit in the slot of the rocker arm. You should prolly just order the feeler gauge from Stihl tho....
Thanks, Rich
Excellent explanations. Thanks, so much!
Thank you very much for this video! Very Informative and easily understood. Appreciate it alot thanks again! Very helpful
Thanks!
Exceptionally excellent video.
Thanks, the info really helped me on the used HT 131 I bought. Any help for straightening the extended shaft that has a slight bend. I thought about removing it and forcing a pipe through it. Any other thoughts?
great information, I do not own one but I am intrigued by your teachings. one quesiton, how do you tell when valve has "botton out" to insert the gauge. Thanks and God Bless
I watch the rocker arm as it bottoms out and there is a little dwell there. I slide the feeler gauge in and find the point of least resistance, then make the lash adjustment.
Is the dwell on both sides. Thanks
@@davidruiz5383yes
Have you ever seen an hour meter installed on any of these.?
Where did you buy the saw mount/vice ?
I haven't watched the video yet but a stump chainsaw vice immediately comes to mind.... About $35-50 if I'm not mistaken.
@Tim O'Hara that vice is far away from a "stump vice"... stihl sells one similar for about $700. Scott kunz has one for about $300. They are super handy if you do a lot of saw work
Richard I have an ht 131 that is new and won’t idle. If I let off the trigger it dies. Any advise ?
In order:
Check spark plug for fouling, replace if necessary
Check air filter for excess dirt build up
Check valves for the gap. This is done in the video
Carburettor screws, specifically low and idle screws (if you don’t know what to do with them, the manual tells you what to do to reset)
Hope that all helps
Four stroke???
Yes. Still runs on mixed gas. Nylon cam gear, valves, push rods and rocker arms. Lots of moving parts for a handheld piece of equipment.
@@richardflagg3084 very odd. First time I've heard about this 4 mix engine design. Guy at work brought me a HT 131 to see if I could fix it. Looks like it got water in the exhaust and rusted the rings. Then he yanked on it to free it up. Now it has zero for compression.
@@JetSkiBuyFixPlaySellChannel Wonder if there is a valve open? Regardless, water in the engine is not going to have a pretty outcome.
@@richardflagg3084 unfortunately he doesn't take very good care of his tools or toys. I'll probably tear it down and see.
Ordered. Thank you!
nice!!!!!!
@@richardflagg3084 Hello, I have a fs 131 weed trimmer. I'm not able to remove the carburetor because of the linkage. How do I remove the linkage from the white piece that connects to the throttle cable?
@@isaiahmmosleysr.7329 It's not just you. That throttle rod is a bear to remove. Slide the carb towards the end of the studs, open the throttle shaft to wide open and there will almost be enough wiggle room to pry the rod off the white piece, You'll need to use some needle nose pliers to "flex" the throttle linkage.
@@richardflagg3084 Thank you sir
Show them the Stihl recommended procedure, line up the arrow on the flywheel with carburetor side coil mounting screw head on the correct top dead center set to .004 “ valve lash…!