Roots Lumberjack Chainsaw with AH-81 engine

[Chris Doherty]

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

 

[cus_deluxe]

thats badass. sorry no help on carb.

 

[farmer steve]

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

 

[ray benson]

@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

 

[pioneerguy600]

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.

 

[ray benson]

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

 

[pioneerguy600]

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.

 

[Chris Doherty]

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.

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.

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

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

Thank you

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

Thanks, I will take a look

 

[pioneerguy600]

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

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.

 

[67L36Driver]

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.

 

[pioneerguy600]

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.

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

 

[67L36Driver]

That is in outstanding nice cosmetic shape for as old as it is.
[emoji15]

 

[farmer steve]

That is in outstanding nice cosmetic shape for as old as it is.
[emoji15]

Like me, your just drooling over that bar Carl.

 

[67L36Driver]

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

 

[67L36Driver]

Like me, your just drooling over that bar Carl.

Got one.

I’m drooling over the whole ‘****** saw! [emoji2957]

 

[cpr]

I have one. Mine has an HL 86A in it.

 

[farmer steve]

Got one.

I’m drooling over the whole ‘****** saw! [emoji2957]

Shoulda knew that.

 

[67L36Driver]

That is soo cool!

Let’s drag Steve into this. [emoji48]

@sawnami

 

[leeha]

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

 

[Chris Doherty]

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.

I have one. Mine has an HL 86A in it.

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???

That is in outstanding nice cosmetic shape for as old as it is.
[emoji15]

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

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.

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

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

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.

Got one. I’m drooling over the whole ‘****** saw! [emoji2957]

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

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

Thanks!

That is soo cool!

Let’s drag Steve into this. [emoji48]

@sawnami

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

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

Really? I will have to do some research.