Saw/kart engines

[Al Smith]

We had a good one going,but off the subject.Best to continue it here. The saw/kart engines ,that I know of.The mc 49,was a variation of the 44 McCulloch.The mc 10,was the super 44a.The 101 was the cp125,that is,if I'm not mistaken.The Power Products Ah 58,and Ah 82,were used in a few saws.The West Bend 820 was used in a few also,and later called the super bee,or us820.Homelite had a kart engine,also,but I have no knowledge of what model.These are the ones I know of.I think I have them right.Does anybody know of more?

 

[Jacob J.]

Al- Those Homelite karters were marketed as Jacobsen engines, and most were 100cc although they made an 80cc for a while. The 101 shared some similarities with the 125 saw engine but were 12cc bigger ( 137cc ) and used the horizontal mounted coil and early ones had a bridged exhaust. The desirable saw engine for karters now is the 895 saw engine. It's a super series engine that uses the horizontal mount coil, has a bridged exhaust, and has a bolt-on boost port cover which can be used for accessing and modifying the boost ports-which is desirable if you're making a "nine-port" engine.

 

[MacDaddy]

Actualy Al the super44 is the Kart based motor it has boost ports The 44a is a larger (87cc) version of the d44 I have a brand new Mac 49 never ran The 101 is based off the 125 but with boost ports and removeable head Also Mac made a 91,92,93 that are smaller (99cc) version of the 101, very strong runners Al I sent you a email Thanks Mike PS all 101 motors are 122.76cc and the 91 is 99.30cc,the mc75 is 119.00cc,mc70 is116.00cc,mc45 is 99.30cc,mc40 is 99.30cc,mc9 is 99.30cc,mc8 is 99.30cc,mc10 is 80.00cc,mc49 is 80.00cc

 

[MacDaddy]

the 895 is a third port style like a 125 but only 103 cc almost identical to the sp 105

 

[z4lunch]

Steve here...
Here is the scoup on how the West Bend 820's and others evolved, into what is known today as the US820. I copied this from US Motors web site:
The evolution of United States Motor Power, Inc. started back in 1946 with the West Bend Company producing outboard engines primarily under private label brands.? The West Bend Company really got things going in 1951 with an offspring of a 1 ¼ horsepower, air cooled outboard power head.? The first use of these engines was for brush cutters and chainsaws.? In the mid 1950’s McCulloch came out with a twin, side by side rotary lawn mower power by the West Bend engine.?? The machine was not engineered well and fell apart, but the engines ran great leaving over 30,000 for the surplus market.? In 1956 Art Ingels developed the worlds first go-kart using one of the surplus West Bend engines.

In the late 50’s and early 60’s karting boomed and production of the kart engines actually surpassed the production of outboards.? In 1965 Chrysler took over and continued on into the 70’s and early 80’s. Through this time the industrial engine now known as the Chrysler Power Bee really took off.? The industrial engine was being used in a wide variety of applications such as: tampers, pumps, rescue tools, recreational vehicles, ground augers, and others.

?In the 80’s Chrysler sold the small engine line and outboards to Brunswick, who also owns Mercury Marine.? Brunswick then changed the name from Chrysler to US Marine.? In 1991 Brunswick sold the US Marine Industrial Power Bee line to Wisconsin Ovens Corporation who renamed the current company to United States Motor Power, Inc.? The operations were moved from Hartford, WI to East Troy, WI the current home of US Motor Power

That being said, i included a pic of my Wards chainsaw that came with a West Bend 820. The motor in the pic is a US820. I am in the process of finishing up the original West bend motor. My frind painted the chassis for me, after I bead blasted off the old stuff. I had the engine 9 ported and then sent it out to have the cylinder nicasil'd. I was also lucky enough to find a Gem V12 base. One of the two US820 motors I purchased came with a pipe... so i'm alll set with that. I just have to finish up the throttle linkage and move the oiler feed. Hope to have it running in the next week or so.

 

[Dolmar_Tech_Mgr]

How about these saw/kart engines.

 

[Al Smith]

Quite ingenious,I might say.Back in the heyday of 2 cycle karts,a twin engine,was a bear to tune both for the same power etc.I know that technology has changed,but if not,that one would be a grizzly bear.

 

[Dolmar_Tech_Mgr]

If you like three take a look at 24. 12 on each side of the Dolmette motorcycle. www.dolmette.com is the website for the motorcycle.

 

[MacDaddy]

Is Dolmar going to tour with that at special events

 

[Dolmar_Tech_Mgr]

That is the plan. Tentativly we are planning to have it at the Outdoor Expo in Louisville next year.

 

[MacDaddy]

How about California

 

[Dolmar_Tech_Mgr]

Known that i know of yet, but you never now. I will surely post, any appearance the motorcycle will make, here on the arboristsite.

 

[MacDaddy]

Do you have a video that can be purchased on that bike I have seen the video on the web Thanks Mike

 

[Dolmar_Tech_Mgr]

Not that I know of but I will check. One thing Dolmar does not own the rights to the bike. The gentleman that drove the bike actually owns it. I will check with Dolmar to see what they have available.