Tell me about a Husky 66.

[Anthony_Va.]

Well my boss has one that's scored. It's an older saw. I don't know anything about it but I'm going to put a new topend on it. I was wondering about the specs of this saw. Like, what cc engine, HP, etc.

Also, is there any other top end kits or BB kits that will fit it? Like a 372 topend or anything else?

Where's the Husky gurus at? Spike60?

 

[ckelp]

it's a chainsaw:monkey:

 

[Kennygee]

66 upgrade

It is part or the 66,266,268,272 family of saws. Yes bib bore kits are available. For the 272 upgrade a new carb intake and carb is needed,and possibly top cover, especially in going to high capacity air filter.
I am not sure what is needed for the 66 upgrade though . There are lots of parts available and easy ot work on. Good luck with it.

 

[madhatte]

I love how this question keeps coming up. I also love that I love these saws, and don't mind answering the same question more than once. Long story short, that is among the best families of saws ever built. Lots of aftermarket and NOS stuff available, lots of hot-rod possibilities, great power/weight ratio, great ergonomics. Not my FAVORITE saw, probably, but not one I'd leave behind on account of its name, either.

 

[Anthony_Va.]

Well shes definetly siezed up. And he said that someone who borrowed it had straight gassed it.

He also has a pretty nice 261.

I think I'll put some sort of aftermarket p/c on it. Maybe check the carb and everything out. I think it's sat awhile now.

I'm thinking it will make a good saw once I can get it running. I think I'll try to port it just a little. Maybe just a little widening and cleaning up. Mod the muffler and see what happens. It would be cool to go with a bigger kit though.

 

[272super]

The 66 and the later 266se.xp are pretty much the same saws with a different cylinder. I have a 266SE and really love the thing. I also have A 272XP and the 266 can run pretty close to it. Great saws to work on and very strong runners.

 

[SawTroll]

.... For the 272 upgrade a new carb intake and carb is needed,and possibly top cover, especially in going to high capacity air filter. ......

I also believe that as well, but am not sure. Also, I am not sure when the model actually was introduced.....

The serial number would be interesting to know, and if it say something about where the saw was made.

To the original question, a 372xp topend will definately not fit, as that is a very different design, with a longer stroke.

 

[spike60]

The 66 had the shortest run of any model in this family of saws. It did not precede the 266XP, and I think it's part of the second generation of saws in this family, which is sort of determined by twin coils on the early saws and a single coil on the later saws. If I remember correctly, the 66 used the same open port cylinder that was on the non-XP 268's. So, a 272 top end should bolt right on without any other intake changes. I'll check some IPL's when I get to the store and see if I actually know what I'm talking about here.

 

[SawTroll]

The limited production time fits with the little info I have, except for what Acres site states (1980 - ?). I don't think I have seen a single picture of one that doesn't have a gray top cover, that places the saws quite late in the 1980s.
The IPLs I can find are dated 1987-1991.

I know that at least some were made in Yugoslavia, and maybe in Slovenia later on.

Another thing is that I thought the model was based on the 61, but I guess I was wrong (again)?

 

[Cantdog]

Yes I believe you are right Bob. If the 66 runs the same 50MM Gilardoni P&C from the non-XP it is open port but still a very well made setup. I ran a mildly ported one for a while in the 61/268XP in my sig. It made real good power and was extremely well made and preformed quite well with it's twin transfer open ports. I changed out to a closed port XP, ported it much more aggressively and it's a significant upgrade to the open port but only if you are concerned with such things. The open port system worked perfectly and was a big increase over the 61 P&C it started with!!

Happy Thanksgiving Bob.....we're headed to the island for the week and just got done polishing up one of the 49SPs for firewood detail.

 

[Saw Dr.]

Yes I believe you are right Bob. If the 66 runs the same 50MM Gilardoni P&C from the non-XP it is open port but still a very well made setup. I ran a mildly ported one for a while in the 61/268XP in my sig. It made real good power and was extremely well made and preformed quite well with it's twin transfer open ports. I changed out to a closed port XP, ported it much more aggressively and it's a significant upgrade to the open port but only if you are concerned with such things. The open port system worked perfectly and was a big increase over the 61 P&C it started with!!

Happy Thanksgiving Bob.....we're headed to the island for the week and just got done polishing up one of the 49SPs for firewood detail.

It does run that open port top end. I had one here that I bought as a parts saw. That cylinder was a work of art. There are some pics somewhere on here comparing it and a 272 cylinder. I'll see if I can dig them up. As troll said, the one I had was gray top with two piece ignition.

Found THEM. 66 is on Right

 

[Cantdog]

Yes SawDr. the Gilardoni cyl are very well made. I am not a porting expert either but I can't see why anyone would remove the bridge creating an open port out of a closed port. I may well be wrong but the way I understand the performance differences between the two is; on a closed port the fuel charge is compressed in the crankcase and directed up thru the transfers with no (or little) interference from the downward motion of the piston. I was thinking of putting a windowed piston in the Gilardoni but then decided that, though seemingly, it may increase flow, it might just as well create a situation in the open transfers where the upcoming flow collided with the sideways, windowed flow causing interference and actually slowing the charge down, so I stayed with Gilardoni the slab side piston.........Again no expert...but I can attest to the fact the the closed port 50MM XP P&C makes more power and a higher rpm than the 50MM open port P&C!!

 

[spike60]

OK, I did some research on this. My only goof up was that the 66's did use the early twin coil set up.

The IPL's show the model run from 87-91. They do use the same open port cylinder as on the non-XP 268's. There are a few different part numbers involved. Early 66 IPL's show #503448271, and the later IPL shows #503611071, which is the same as on the 268 IPL. Doesn't really matter, as all of them supercede up to the same number, 544222902.

On the intake side, they use the same intake block, #501806602, as the 268 and 272. So, any of the 268 and 272 closed port cylinders are a straight bolt on affair.

Price wise, OEM P&C sets list out at $237 for the open port 66/268, and $244 for a 272 set. Talk about a no-brainer, huh?

 

[SawTroll]

I got curious, so I looked up a few IPLs, to find out which carbs were used on the different models in that "family" of saws.

The 66 was simple, it used the HS224A from 1987-1991.

The only other one that used the same carb at any point was the late production 266SE and the 266XP (1985-1993), minus 1987 (HS224B) and 1988 (HS224C). Before 1985, the 266SE used the HS163A. That carb change may have something to do with the fact that the power and rpm specs changed on that model.......

The 61 used the same 163A all the way up to 1991, when it changed to the HS254A (not used by any of the other models).

No version of the 268 (including the late production open port one) or the 272xp "shared" carbs with the models mentioned above. The 268XP changed from HS234A/B in 1987 and 1989 to HS260A in 1990. All later 268 IPLs show the same HS260A, as do all 272XP IPLs. (the last ones are from 1997).

The years here relate to the dating of the IPLs, and does not say exactly when a change was made.

I have no idea what the difference between the different carb models is, but assume that different venturi/capacity is part of the picture......

 

[Cantdog]

Yes Niko, the actual size of the venturi and throttle plate are the big difference between the 260 and the other carbs except on the 670 WC which carries the 250A which is the same carb as the 260 but has the Jonsered specific throttle and choke linkages and an external impluse pickup. In my sig the 61/268XP is running the 250A on a ported 268XP cyl that I modified the impluse to run the external pickup. For a 67cc saw that thing just rips (not braggin........well maybe a little...!!)

 

[SawTroll]

Yes Niko, the actual size of the venturi and throttle plate are the big difference between the 260 and the other carbs except on the 670 WC which carries the 250A which is the same carb as the 260 but has the Jonsered specific throttle and choke linkages and an external impluse pickup. In my sig the 61/268XP is running the 250A on a ported 268XP cyl that I modified the impluse to run the external pickup. For a 67cc saw that thing just rips (not braggin........well maybe a little...!!)

:biggrinbounce2: Mixing and matching is of course perfectly OK when you know what you do!

I assume that carbs also have some sort of specs, but I never cared to look into it.

 

[Anthony_Va.]

Yea I think the 272 setup is the only way to go with this saw. I got to look at it today and it's in pretty good shape. Does'nt look to be abused (aside from the straight gas )
I guess a carb change is in order. I'm still thinking the top cover wil need to be changed too?

I appreciate all the info guys. I'm going to try to get it in to work on in a week or so. I wonder if there's any aftermarket kits for it?

 

[spike60]

Yea I think the 272 setup is the only way to go with this saw. I got to look at it today and it's in pretty good shape. Does'nt look to be abused (aside from the straight gas )
I guess a carb change is in order. I'm still thinking the top cover wil need to be changed too?

I appreciate all the info guys. I'm going to try to get it in to work on in a week or so. I wonder if there's any aftermarket kits for it?

I don't think that the top cover would need to be changed unless you want to go with the 272 style air filter, which I think is unnecessary. I also think a carb change is not that important, and would be a wasted expense if you had to buy one. If the carb on the saw is good, then just run it.

There several aftermarket P&C kits to choose from. I think you've got yourself a nice project there. :rockn:

 

[Anthony_Va.]

I don't think that the top cover would need to be changed unless you want to go with the 272 style air filter, which I think is unnecessary. I also think a carb change is not that important, and would be a wasted expense if you had to buy one. If the carb on the saw is good, then just run it.

There several aftermarket P&C kits to choose from. I think you've got yourself a nice project there. :rockn:

Thats alot of good news man!

I cant wait to get it. I'm thinking it's gonna be a killer saw. I'm even thinking about just touching up the ports a little, since I've never tried porting yet. I think (hope) I can manage to just clean them up a little.

He's got that 261 also. It's still runs great. I cleaned it up and changes out the filter and pickup and it's a fast saw. It needs a new bar pretty bad though.

 

[SawTroll]

......
He's got that 261 also. It's still runs great. I cleaned it up and changes out the filter and pickup and it's a fast saw. It needs a new bar pretty bad though.

Those make a cool 262xp project - but I guess you know that since you mentioned it!