Scorpion 1966-1978 Specifications

[admin]

This information was found on another site and credit is given by posting the link here,

reocities.com/yosemite/falls/9634/specs.html



Scorpion Specifications
--------------------------------------------------------------------------------


Model ............. Engine Make ......... Displacement ........ Carb




1966

TAS-J252 ...................JLO ................... 247cc ............ Tillotson
TAS-H300 ..................Hirth .................. 300cc ............ Tillotson
(TAS stands for Trail-a-sled)




1967

J252 .........................JLO ....................247cc ............. Tillotson
J292 .........................JLO ....................292cc ..............Tillotson
S280 .........................Sachs ..................277cc .............Tillotson
J292L .......................JLO ................... 292cc ............. Tillotson
S280L .......................Sachs ................. 277cc .............Tillotson




1968

Mark II.....................Sachs ................. 277cc .................Tillotson
Mark II ....................Sachs ................. 297cc .................Tillotson
Mark II ....................Hirth .................. 372cc ................. Tillotson
Mark II ....................JLO ................... 372cc ................. Tillotson
Mark III ..................Sachs ................. 277cc .................. Tillotson
Mark III ..................Sachs ................. 297cc .................. Tillotson
Mark III ..................Hirth .................. 372cc .................. Tillotson
Mark III ..................JLO ................... 372cc .................. Tillotson
Mark III ..................Wankel ............... 303cc ................. Tillotson




1969

Mark I .......................Sachs ................. 277cc ................ Tillotson
Mark II .....................Sachs ................. 277cc ................. Tillotson
Mark II .....................Sachs ................. 297cc ................. Tillotson
Mark II .....................Sachs ................. 368cc ................. Tillotson
Mark II .....................Wankel ...............303cc .................. Tillotson
Mark II .....................Hirth .................. 634cc .................. Tillotson
MarkIII .................... Sachs ................. 297cc ..................Tillotson
MarkIII .....................Sachs ................. 368cc ................. Tillotson
Mark IV .....................Sachs ................. 368cc .................Tillotson
Mark IV .....................Hirth ................. 634cc ................. Tillotson




1970
- the only year a Scorpion would use a Kohler engine, and the first year for a CCW. The last year for the "bubble nose" Scorpion and last year for in-frame gas tanks. Last year for the Hirth engine. Hirth engines would no longer power Scorpion sleds after the 1970 season.


Mark I .....................Sachs ................. 277cc ................. Tillotson
Mark II ....................Sachs ................. 277cc ................. Tillotson
Mark II ....................CCW ................. 339cc ................. Tillotson
Mark II ....................Hirth ................. 399cc ................. Tillotson
Mark II ....................Hirth ................. 438cc ................. Tillotson
Mark II ....................Hirth ................. 493cc ................. Tillotson
Mark II ....................Hirth ................. 634cc ................. Tillotson
Mark II ....................Hirth ................. 793cc ................. Tillotson
Mark III ...................Sachs ................. 368cc ................. Tillotson
Mark III ...................CCW ................. 398cc ................. Tillotson
Mark III ...................Kohler................. 437cc ................. Tillotson
Mark III .................. Kohler................. 437cc ................. Tillotson




1971
First year for the new "wedge" bodystyle that would only last one year. First year for plastic gas tanks that sat in the bellypan. First year for the legendary "STINGER" moniker that would ride on Scorpion sleds until the end of the 1975 season. First year for use of the CCW 290cc twin. The final year for the "Mark" model.


Mark I .................... Sachs ................. 277cc ................. Tillotson
Mark II ................... Sachs ................. 293cc ................. Tillotson
Mark II ................... CCW ................. 339cc ................. Tillotson
Mark II ................... CCW ................. 398cc ................. Tillotson
Mark III ...................Sachs ................. 368cc ................. Tillotson
Stinger II ................. Sachs ................. 293cc ................. Tillotson
Stinger II ................. CCW ................. 290cc ................. Tillotson
Stinger II ................. CCW ................. 339cc ................. Tillotson
Stinger II ................. CCW ................. 398cc ................. Tillotson
Stinger II ................. Sachs ................. 437cc ................. Tillotson
Stinger II ................. CCW ................. 437cc ................. Tillotson
Stinger III ................ CCW ................. 398cc ................. Tillotson
Stinger III ................ Sachs ................. 437cc ................. Tillotson




1972
Introduction of the child's sled "STINGEROO", which was made for one year only, 1972, and the "STINGERETTE", a sled marketed toward the ladies' market. Stingerettes used ONLY 290cc CCW engines. Stingerettes were manufactured in most of the colors the "big" sleds were, but also added to the Stingerette color line-up were the first year for Metallic Purple and of all things, PINK!! First year for the JLO twin-cylinder fan-cooled engine to be on a Scorpion sled. Also the first year for Walbro carburetors, introduced on the twin-cylinder sleds. The smaller single-cylinder Stingeroo, Stingerette, and Stinger I would still use Tillotson carburetors. Last year a Scorpion would use a Tillotson Carburetor. After 1972, ALL Scorpions would use either Walbro or Mikuni carburetors.


Stingeroo ................. Sachs ................. 277cc ................. Tillotson
Stinger I ................... Sachs ................. 293cc ................. Tillotson
Stingerette ............... CCW ................. 290cc ................. Tillotson
Stinger II ................. Sachs ................. 336cc ................. Tillotson
Stinger II ................. CCW ................. 398cc ................. Walbro
Stinger II ................. JLO .................. 428cc ................. Walbro
Stinger III ................ CCW ................. 398cc ................. Walbro
Stinger III ................ JLO .................. 428cc ................. Walbro




1973
First year for the Super Stinger, the Super Stingerette, the Super Stinger 400RV, and the Super Stinger 400TK. Super Stinger and Stingerette basically meant a Tach and Speedometer along with some fancy lettering. Also the first year a Scorpion would be available in yellow. First year the Stingerette was available with something other than the CCW 290, a CCW 340.


Stinger 290 ET .............CCW ................. 290cc ................. Walbro
Stinger 290 AB .............CCW ................. 290cc ................. Walbro
Stinger 340 AE .............CCW ................. 339cc ................. Walbro
Stingerette AC .............CCW ................. 290cc ................. Walbro
Super Stingerette .........CCW ................. 339cc ................. Walbro
Super Stinger 400RV ...CCW ................. 398cc ................. Walbro
Super Stinger 400TK ... JLO ................. 398cc ................. Walbro
Super Singer 440 .......... JLO ................. 428cc ................. Walbro





1974
Introduction of the "Rockwell" twin-cylinder engine. Those who look close at the serial number will see that it's actually a JLO with a new name stuck on! '74 was the final year for the Stingerette. In late '74, there were quite a few leftover Metallic purple hoods from the soon to be discontinued 1974 Stingerette, so Scorpion stuck together a few rare purple Super Stingers using the 400 and 440 Super Stinger chassis with the Stingerette purple hood bolted on. Since it carried no Stingerette decals, it was in reality a purple Super Stinger! The 290 in the Stingerette was discontinued for 1974, with the Rockwell 340 bieng the only choice. The regular Stingerette was done away with totally, and the Super Stingerette 340 was the only and last Scorpion sled manufactured towards the ladies' market until the introduction of the 'Lil Whip in late 1975.


Stinger 290 ..................Rockwell ................. 290cc ................. Walbro
Stinger 440 ..................Rockwell ................. 428cc ................. Walbro
Super Stingerette .........Rockwell ................. 339cc ................. Walbro
Super Stinger 340 ........Rockwell ................. 339cc ................. Walbro
Super Stinger 440 ........Rockwell ................. 428cc ................. Walbro




1975
This would be the final year for Scorpion's successful Super Stinger, and all the Stingers for that matter. Stingerette was gone. This would be Scorpion's first and only year to experiment with liquid cooled engines. It would also be the first triple-cylinder engine in a Scorpion since 1970. For the Super Stinger's final year in production. Scorpion gave it a minor face lift in terms of a headlight relocated into the hood (used to be behind the windshield), and fancy "Super Stinger" decals that went on the sides of the tunnel, hood, and bellypan. The Super Stinger was Scorpion's very last steel-chassis sled. All sleds made in the 1975 season with the acception of the Super Stinger would have aluminum tunnels with a riveted-on aluminum front crossmember and a riveted-on fiberglass bellypan. The gas tank was moved from the front of the bellypan to just in front of the seat. The engines to all sleds (with acception of the Super Stinger) are now located down in the bellypan in front of the torque converter as apposed to the "lap-mounted" engines that had been used since 1966. 1975 was the very first year for Scorpion's brand new sleek bodystyle, dubbed "Whip." and was available in everything from 340cc to 440cc. 1975 was the first and only year for the Scorpion "Brut" which utilized both 340 (twin-cylinder) and 440 (triple-cylinder) liquid-cooled BROOTEN engines. Today these "production race sleds" are VERY rare and sought-after sleds among collectors. First year for "foreign" parts on a Scorpion, the Mikuni carbs on the Bruts. The ONLY year for a white 'Lil Whip. This was also the last year for fiberglass hoods on Scorpions. After 1975, all hoods and bellypans would be made from plastic which tended to break in cold temperatures and was only fixable by replacement of the whole panel. After 1975, the Famous Scorpion Metallic hoods would be gone forever.


Super Stinger 290 .......Rockwell ................. 285cc .............. Walbro
Super Stinger 340 .......Rockwell ................. 339cc .............. Walbro
Super Stinger 400 .......Rockwell ................. 398cc .............. Walbro
Super Stinger 440 ...... Rockwell ................. 428cc .............. Walbro
'Lil Whip .....................Rockwell ................. 290cc .............. Walbro
Whip 340 .................... Rockwell ................. 339cc .............. Walbro
Whip 400 .................... Rockwell ................. 398cc .............. Walbro
Whip 440 .................... Rockwell ................. 428cc .............. Walbro
Brut 340 ..................... Brooten ................... 336cc .............. Mikuni
Brut 440 ..................... Brooten ................... 439cc .............. Mikuni




1976
The Super Stinger was gone from the lineup, and for the first time since 1967, Scorpion had less than five models on the market. By now, the Whip 400 had mutated to the "Range Whip" which was basically the same thing as a Whip 400, but had different decals. The 'Lil whip was almost entirely un-changed with the acception of a different bumper and skis. Scorpion's only engine manufacturer decided to do the switcharoo on it's name again! This time, it was called Cuyuna, but was the same thing as a Rockwell/JLO. The only differances were the stickers on the fan shrouds!


'Lil Whip .............. Cuyuna ................. 290cc ................. Walbro
Range Whip ......... Cuyuna ................. 398cc ................. Walbro
Whip 340 .............. Cuyuna ................. 339cc ................. Walbro
Whip 440 .............. Cuyuna ................. 428cc ................. Walbro




1977
The introduction of the Sting, which was basically a Whip 440 but with a much bigger tuned pipe, Y-pipe, and different markings on the hood, bellypan, and tunnel. 1977 also saw some changes on the Whip bodystyle. The headlight was sunken deeper into the hood, and the headlight itself was mounted from the inside of the hood instead of the front and utilized no trim ring.


'Lil Whip ..............Cuyuna ................. 294cc ................. Walbro
Range Whip ......... Cuyuna ................. 398cc ................. Walbro
Sting .................... Cuyuna ................. 428cc ................. Walbro
Whip .................... Cuyuna ................. 339cc ................. Walbro
Whip .................... Cuyuna ................. 428cc ................. Walbro




1978
saw minor changes to the "Whip" bodystyle, but not very many. About the only recognizable changes were a slight lowering of the hood line and new decals.


'Lil Whip ............. Cuyuna ................. 294cc ................. Walbro
Whip ................... Cuyuna ................. 339cc ................. Walbro
Whip ................... Cuyuna ................. 428cc ................. Walbro
Range Whip ........ Cuyuna ................. 398cc ................. Walbro
Sting ..................... Cuyuna ................. 428cc ................. Walbro

[admin]

OK Team, I've found a few discrepancies with the information above so don't rely on it 100% as accurate reference material.

For now, I will just point out the things I noticed:

• I have a 1970 MARK III with 399cc Hirth twin engine. The spec listed above does not list such an engine for that year and model.
  
  
• For 1970, it reads "The last year for the "bubble nose" Scorpion", while in reality, the bubble nose was also available in 1971 as listed in the remaining information.
  
  
• For 1971, it reads "First year for the new "wedge" body style that would only last one year". I think that wedge was available in 1972 as well. Can anyone confirm?
  

The information is a nice reference collection but I wanted to point out those items because one of the main reasons for this site is for us Scorpion people to have accurate information available for reference all in one place!

Feel free to reply and correct me or the originally posted information.


Thanks!

[ddub]

For 1971, it reads "First year for the new "wedge" body style that would only last one year". I think that wedge was available in 1972 as well. Can anyone confirm?

Yes, I can confirm. I have one.

The wedge chassis was made in 71 and 72.

The wedge chassis is really still a bubble nose with a squared off hood!

[ddub]

Stingeroo ................. Sachs ................. 277cc ................. Tillotson
Stinger I ................... Sachs ................. 293cc ................. Tillotson
Stingerette ............... CCW ................. 290cc ................. Tillotson
Stinger II ................. Sachs ................. 336cc ................. Tillotson
Stinger II ................. CCW ................. 398cc ................. Walbro
Stinger II ................. JLO .................. 428cc ................. Walbro
Stinger III ................ CCW ................. 398cc ................. Walbro
Stinger III ................ JLO .................. 428cc ................. Walbro



They also used a 440 Sachs in 72. My 72 Wedge is a 440 Sachs.

[stingerIII]

Still a good source of information ,but incomplete and a little off.
1970 saw the "Stinger" name introduced with Red metal flake bubble hoods.
The Bubble hood lasted to 1971
The wedge hoods ran from 1971 to 1972
in 1972 the Stinger I 290 had a single sachs 293 with a 15 inch track
the 1972 Stinger I 440 had a two cyl Sachs 440 with the 18 inch track
(as per the dealer manuals)

The only shared component between the bubble hood and the wedge
hood models were the tunneling .The tracks ,chain ,cases, drive axles and rear suspensions were different but some components were interchangeable with slight modifications.

Also the Whips could be ordered in with 300 cc engines with 300
graphics on the sled(very rare)

Also the model years for 1978 to 1981 are absent,
with no mention of the Scorpion 4 wheel spyder(1971) or the 1978
Mopeds.

[admin]

Jan 1, 2012 22:46:23 GMT -5 stingerIII said:

The only shared component between the bubble hood and the wedge
hood models were the tunneling .The tracks ,chain ,cases, drive axles and rear suspensions were different but some components were interchangeable with slight modifications.

StingerIII, can you describe how the tracks ,chain ,cases, drive axles and rear suspensions were different between the bubble and wedge?

[stingerIII]

The bubble hoods used rubber tracks that used external drive cogs and the chain that was molded into the tracks,the chain cases were stamped and the rear suspension was also the older style(difficult to adjust) .
The wedge hoods used the Gates poly. tracks with internal drive cogs, a cast aluminum chain case and a newer easier to adjust
rear suspension.the drive axles had different splines or different driver spacing depending on the model. The Gates poly tracks were much more durable
and I remember changing some bubble hoods from the rubber tracks to the poly tracks with a few modifications and a drill .
The Stingeroos were the only wedge hood sled that used bubble hood parts such as the track and axles.

Also missing was the 1965 model year when Trail-a-sled made Scorpions,
Sears Snowcruiser and Sno-Ro for Laurentide Recreation Products,Inc. in Canada.

Trail-a-sled also made 50 Scorpions all fiberglass chassis with the new rubber tracks in 1964(Oh if I only had one)
An interesting note that the first patented continues track with the drive chains molded into tracks was held by a Trail-a-sled employee in 1964.

By the way thanks for the great site.

[admin]

WOW

That is some list of detail that I am CERTAIN many people will find useful in the future, including me.

Thanks!

[ddub]

The only shared component between the bubble hood and the wedge
hood models were the tunneling .The tracks ,chain ,cases, drive axles and rear suspensions were different but some components were interchangeable with slight modifications.

I assume, this comment was made at my comment about the bubble and the wedge chassis being pretty much the same.

This was said a little tongue in cheek which you can't see on a post. Sorry about that.

Yes there were minor differences, but really the technology stayed the same other than they did upgrade the tracks and went to a actual chaincase. They NEEDED to.

If you look at a wedge chassis, the front still has the round shape of the bubble hood, but they added some flanges to square it off for the wedge. IMHO the wedge did a great job of making a old chassis look like a new one. Not saying anything bad here, all companies do this.

In fact, a guy found a "71 Super Stinger" a couple years ago. When I got to looking at the pictures, someone had used a bubble nose chassis added their own flanges and put on a Super Stinger hood!

I have read that Scorpion itself really didn't like the 71-72 wedge chassis and that is why the bubble was still offered in 71, and the 72 version was pretty much overshadowed by the "new" 72. I would guess they knew it needed some upgrades to stay competitive.

For the record, I like the wedge chassis. Funny thing is, I didn't use to. Not sure what happened. But I currently have about 6 of them including 2 Super Stingers.

[ddub]

Also missing was the 1965 model year when Trail-a-sled made Scorpions,
Sears Snowcruiser and Sno-Ro for Laurentide Recreation Products,Inc. in Canada.

The 65 is also all fiberglass. Here is a picture of mine. They also used the 247JLO or the 300 Hirth. I have also seen and heard they offered a 4 stroke, (which was for sure an option on the 64) but that is not listed on TAS.com. So I do not want to mislead anyone as this may have been transplanted.

[ddub]

From the TAS website.

1964 – Having abandoned air-sled production, TAS set-up their first production run of tracked snow machines. 38 such machines were created and featured a more rounded fiberglass cowling (affectionately named a “bubble-nose”) and a fiberglass tunnel making for a completely all fiberglass body. A steel cleated track was also featured.

StingerIII
from your post.

Trail-a-sled also made 50 Scorpions all fiberglass chassis with the new rubber tracks in 1964(Oh if I only had one)
An interesting note that the first patented continues track with the drive chains molded into tracks was held by a Trail-a-sled employee in 1964.


Where do you get your info on the 64? It is somewhat different than TAS. Honestly, I wasn't there. So I don't know which is correct.

I can say this, my 65 has the rubber track. If the 64 used a cleated as stated, than that would be a good way to tell the difference as the data plates are almost always missing. Thinking about it, that would have been something to look at on the 4 stroke that I have seen. Maybe it was a 64 but advertised as a 65! If that is the case, I blew it big time. Just didn't have the money and he wasn't giving it away.

[ddub]

This might be splitting hairs, but the Hirth was available in 71. True it was in the Super Stinger, so it was not a "production" use.

1970
- the only year a Scorpion would use a Kohler engine, and the first year for a CCW. The last year for the "bubble nose" Scorpion and last year for in-frame gas tanks. Last year for the Hirth engine. Hirth engines would no longer power Scorpion sleds after the 1970 season.

[ddub]

Since StingerIII brought up some sleds that Scorpion manufactured for other companies,

Sears I show as 66-67.
and Sno Kraft (Brainerd Marine) 1967. Featured two headlights

It would be interesting to find out the production numbers of these sleds along with the Sno Ro that he mentioned which I have never seen in person.

Has anyone seen production figures?

[stingerIII]

Great comments ddub
I got the info from the Scorpion trails web site(www.trailasled.com/history.htm)
on the history page.

The wedge Hooded Scorpion's are not the nicest looking
Scorpion's(they do grow on you though)but that is what I started
out with so that is why I like them.And riding the 15 inch trackers
at speed was like riding a wild horse that was all ways trying to
buck you off(which it did many a time)

[admin]

Jan 2, 2012 12:31:32 GMT -5 ddub said:

Since StingerIII brought up some sleds that Scorpion manufactured for other companies,

Sears I show as 66-67.
and Sno Kraft (Brainerd Marine) 1967. Featured two headlights

It would be interesting to find out the production numbers of these sleds along with the Sno Ro that he mentioned which I have never seen in person.

Has anyone seen production figures?

No production numbers listed for the Sears models but Sears is listed if you click the link at the bottom of this post,

www.scorpionsleds.proboards.com/index.cgi?board=general&action=display&thread=37

[stingerIII]

ddub Thank You for posting the 1970-71 Super Stinger
for sale list I remember Dad getting one at the time and that is one nice
Bubble nose a very very rare Scorpion with a nice looking wedge behind it.

[ddub]

Jan 2, 2012 12:31:32 GMT -5 ddub said:

Since StingerIII brought up some sleds that Scorpion manufactured for other companies,

Sears I show as 66-67.
and Sno Kraft (Brainerd Marine) 1967. Featured two headlights

It would be interesting to find out the production numbers of these sleds along with the Sno Ro that he mentioned which I have never seen in person.

Has anyone seen production figures?

It appears as if Sno-Craft was made in 1966 also! Single headlight, not the dual.