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Roots Lumberjack Chainsaw with AH-81 engine

Discussion in 'Chainsaw' started by Chris Doherty, Apr 17, 2019.

  1. Chris Doherty

    Chris Doherty New Member

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    Hello,

    I was hoping someone can help me. I have a Old Roots Luberjack chainsaw with a Tecumseh AH-81 engine. Im guessing this chainsaw was hardly used because of its amazing shape with minimal wear to the original paint. However, the carburetor is missing and I’m trying to figure out what exact model was used. From what I can find on the Internet, It would be a Tillotson HL series but there are many HL models. I found out on one website a different brand chainsaw with the same engine may have a HL-66 but I can’t find anything on this carburetor.

    Does anyone have any chainsaws with this model engine? Would you be able to tell me which carburetor would run this chainsaw properly?

    I would really appreciate any help anyone can give me or if you can point me in the right direction.

    Thank you!
    Chris Doherty
     

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  2. cus_deluxe

    cus_deluxe Thats what she said.

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    thats badass. sorry no help on carb.
     
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  3. farmer steve

    farmer steve outstanding in my field, 5150

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    Hi Chris. welcome to arboristsite. Go to the chainsaw stickies section and there is a beg for manuals thread that may help you out.
     
  4. ray benson

    ray benson Tree Freak

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    @leeha may have some info on the carb. He posted this in another forum chainsawcollectorsse - as to chainsaws with ah-81 engine
    Barker C6, Super C-80, H91
    Cobra 7CUS, 7CV
    Comet D81
    David Bradley direct drive: 917.60011, 917.60021.
    David Bradley geardrive: 917-60005, (5G21) 917.60009 and 917-60022, 917.60015, 917.60022
    Eclipse Wasp 700, 1100
    Falls 81
    Hoffco T81
    Lancaster 650 Barracuda, 658 Barracuda
    Lombard Fury 681, Invader 82 or 682, 5.
    Mitchel Mark 7
    Mobilco Big Ten
    Monark Silver King 65, 81
    Mono 7, 80, 82, 83, 84, 85, 86, 94, 94-14B
    Root H81, 8124, 5821
    Strunk G1
    Titan 70, 85
    Trams 5TD
    Universal Saw
    Wards (Montgomery Ward) WD-80, WVF-85, WD-95A, WD-95
    @Old Mac Guy also posted

    Barker Super C6
    Barker Super C-80
    Barker H91
    Cobra 7CUS
    Cobra 7CV
    Comet D81
    David Bradley direct drive 917.60011
    David Bradley direct drive 917.60021
    David Bradley geardrive 917.60005
    David Bradley geardrive 917.60009
    David Bradley geardrive 917.60015
    David Bradley geardrive 917.60022
    Falls Products 81
    Hahn Eclipse 1100
    Hoffco T81
    Lancaster 650 Barracuda
    Lancaster 658 Barracuda
    Lombard Fury 81 and 681
    Lombard Invader 82 and 682
    Mitchell Mark 7
    Mobilco Big 10
    Monark Silver King 81
    Mono 7
    Mono 80
    Mono 82
    Mono 83
    Mono 84
    Mono 85
    Mono 86
    Mono 94
    Mono 94-14B
    Root H81
    Strunk G1 Military
    Swiss Universal
    Titan 70
    Trams 5TD
    Wards 80
    Wards WD95

    HL-32a in the Monark SK 81
    The David Bradley saws may be on sears parts direct site - one example
    https://www.searspartsdirect.com/model/2o93tanmka-000247/craftsman-91760022-chainsaws-parts
     
  5. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    My papers say the AH 81 ran a Tillotson HL83A but that carb seems small for a 130 cc engine. I will keep digging in ancient paper.
     
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  6. ray benson

    ray benson Tree Freak

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    Very little info on pdf for the old saws. This ipl shows HL-32a carb
     

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  7. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    My sources point me toward the AH-81 that was used on the Wards WD95 , that is where the HL83A was used. My manuals have very little information for the Roots and Lancaster saws that used the AH 81 engines.
     
  8. Chris Doherty

    Chris Doherty New Member

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    Thanks everyone!
    I uploaded additional pictures to my original post.

    Well it looks like the Carb might be the HL83A or HL32A... I will have to keep digging if i can find one of these. Hopefully someone here has a chainsaw with this engine and can tell me the carb that's on theirs.

    Also attached to this post is the only image (151-1.jpg) I can find anywhere on the Internet of this model saw. If you zoom in you can see a little bit of the carb that I need.

    Also - The other image is an old advertisement for Root that has this saw depicted on it which i thought was awesome.

    Thank you! But I hope that I don't end up buying a Carb that's too small for the engine.

    Thank you

    Thanks, I will take a look
     

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  9. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    The HL `s physical body shape is the same for all models I have handled, the stud spacing is the same at 1 .8" from stud center to center and a body length of 2.6". What is different is the throttle bore dimensions and how the throttle linkage connects to the carb, this varies from saw model to model. Both of the carbs mentioned above will fit on your engine but it was the throttle bore of 5/8" that was concerning me, one would think it could and would handle a larger bore carb but from all my manuals on Tillotson carbs both the 83A and the 32A were used on the AH 81 in Power Products applications. It seems Root was such a small manufacturer that Tillotson overlooked them in referencing materials.
     
  10. 67L36Driver

    67L36Driver Tree Freak

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    Take a look at a replacement carb for a Stihl 070 or 090. They are common on eBay for $20 or less.

    The throttle and choke shaft bellcranks can be modified to work on your Root.

    I successfully used one to replace the Tilly HA on my Clinton D-35.

    [​IMG]
    [​IMG]
     
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  11. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    They are a very versatile carb and usually a coathanger or bicycle spoke can be made into a throttle rod for them.
     
  12. 67L36Driver

    67L36Driver Tree Freak

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    [​IMG]

    That is in outstanding nice cosmetic shape for as old as it is.
     
  13. farmer steve

    farmer steve outstanding in my field, 5150

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    Like me, your just drooling over that bar Carl.:laugh:
     
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  14. 67L36Driver

    67L36Driver Tree Freak

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    [​IMG]
    Clockwise from top:
    HL141 off a Homelite C5, .8” bore
    HL261 for a Homelite 2100, 1” bore
    Stihl 070/090, 1” bore
    HC11 off Clinton D-45, .8” bore
     
  15. 67L36Driver

    67L36Driver Tree Freak

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    Got one.
    [​IMG]

    I’m drooling over the whole ‘effing saw!
     
  16. cpr

    cpr Addicted to ArboristSite

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    20190417_191439.jpg I have one. Mine has an HL 86A in it.
     
  17. farmer steve

    farmer steve outstanding in my field, 5150

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    Shoulda knew that.;)
     
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  18. 67L36Driver

    67L36Driver Tree Freak

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    [​IMG]

    That is soo cool!

    Let’s drag Steve into this.

    @sawnami
     
  19. leeha

    leeha Addicted to ArboristSite

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    That saws looks have been made by Mono. I would start there as Mono made
    many saws that were rebranded to other manufacturers.
     
  20. Chris Doherty

    Chris Doherty New Member

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    Thanks guys!

    I gave the saw a slight wiped off with a rag, so check out the attached photos to this post. I plan on gently washing and degrease the saw when I have time.

    THATS IT! THANK YOU!
    Can you send me more photos of different angels of your setup? I see that I will have to fab a 90° elbow to go to the air box. Is there an adapter between the carb and the motor? I also will need to fab a new filter since the previus owner used a scotch brite pad.

    Im having trouble finding this carb. I found a used HL87D on ebay. Does anyone think a HL87D would work???

    See attached photo. I slightly wiped it up for you to show how nice it will be when I finish.

    Thank you, This is great to know. I will definitely will buy this carb if I cant find a period correct one.

    That good to know! See attached photo. I would like to use the original linkage that I have. I would like to restore this saw as best I can with its original equipment.

    See attached photos. It looks like the Bar will clean up nicely. But I don't know much about it.

    Thanks!

    Please tell whoever! I would like to learn as much i can about this saw!

    Really? I will have to do some research.
     

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