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Pretty good video on the history of Suzuki ATVs if you are interested in some ATV education. Starts off from when three wheelers were the norm.
Suzuki, A company with about 100 years of manufacturing history is company built on bold innovation and the courage to push forward with new ideas. One of these new ideas was created in 1983, when Suzuki invented the first four wheeled ATV and introduced it to the world. At the time three-wheeled ATVs were the norm, and Suzuki’s four-wheeled ATV the LT-125 created an al-new vehicle category and literally changed the industry.
I got this from another board.....
A Great Big Thanks to COB
From the ATVQuadSquad for this
Most Excellent Find
Thought this was a interesting article.
Honda ATV History 101
The 1960s: Prototyping the ATC
If necessity was the mother of the first ATV, Honda engineer Osamu Takeuchi was its father. In 1967, American Honda asked Honda R&D Ltd. for a new product dealers could sell when motorcycle sales cooled off in the winter. Mr. Takeuchi was assigned to lead the project, along with a small group of Honda engineers. This was clearly the group for the job, since Takeuchi and company had been working to develop other new recreational vehicles that never saw production. These projects gave Takeuchi the tools to develop Honda's first ATV, the US90.
Forget the proverbial blank sheet of paper. Takeuchi started in the shop with a head full of ideas and an eclectic assortment of components. Two-, three-, four-, five- and even six-wheeled configurations were examined, but the three-wheel concept delivered the best combination for the machine's intended mission. It dealt with snow, mud and assorted slippery conditions a two-wheeler couldn't, while providing more maneuverability than other configurations.
In the early stages, a Honda ST™70 motorcycle gave up its 70cc four-stroke single-cylinder engine for the cause, along with assorted chassis parts. An extended rear axle carried cultivator wheels designed to handle rough terrain. Two driving wheels in the rear worked well. Cultivator tires didn't. The biggest challenge would be finding a tire capable of getting a grip on soft, changeable terrain such as snow, sand and mud. Two wheels, three wheels, four wheels or more? Motorcycle tires weren't an option.
The design process quickened when American Honda sent Takeuchi an American invention called the Amphi-Cat& that rolled on six 20-inch low-pressure, high-flotation balloon tires. The light bulb went on. Revamping his ST70-based prototype to accept the new low-pressure rolling stock, he went to work on his own tire design, ending up with a 22-inch tire inflated to 2.2 psi. With the tire dilemma solved, the 70cc engine lacked the muscle necessary to push a full-sized rider through snow or mud. A 90cc engine running through a special dual-range four-speed gearbox added the requisite flexibility over varied terrain.
products Wal-Mart gold!
We put together a cool collection of ATV and UTV products from Wal-Mart. View the full article
I'm having a heck of a time trying to calculate the middle driven gear shim for my 87 Big Bear 350. I've followed the service manual and gotten all my numbers... but when I do the calculations, I always end up with a negative value... I'm so friggin frustrated!
As per the manual:
d = 33
f = +08
c = 50.3
e = ???
I couldn't even figure out what my crankcase said... looked like gibberish! However, even if I took a guess at e, my answer is still negative because d seams like such a low value compared to the manual.
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