Victory is always sweet, but for the University of Wisconsin at Madison, this year’s win in the SAE Clean Snowmobile Challenge was a moment to savor. The Badgers climbed from last place in the 2003 Challenge to take the gold this year, rising a dozen places in the standings.... Read more
….if you’re used to using the safety stop switch (kill switch) up on the handlebars to stop your sled, you’ll want to change your ways if you’re riding a new sled with electric start. This is particularly true on Yamaha models, where if you leave the key on and... Read more
New for 2005 is the Power TEK engine series from Ski-Doo. All DPM-equipped 800 HO twins get a huge enhancement to their electronic engine management system with the addition of Power TEK. This system involves a throttle position sensor (T), electronic RAVE (E) and a knock sensor (K). This... Read more
Brian Musselman, former snowmobile racer and a member of the Michigan Motor Sports Hall of Fame has been awarded $10.7 million for injuries sustained in a 1996 snowmobile accident that occurred on a trail just north of West Yellowstone, Montana. Federal Judge Don Molloy of Missoula, Montana ordered the... Read more
Pennsylvania Conservation and Natural Resources Deputy Secretary Richard G. Sprenkle recently awarded five grants totally $2.2 million to develop and improve OHV riding opportunities for snowmobile and ATV owners. At the 6,000-acre site of the former K&J Coal Co., Sprenkle presented a $2 million grant to the Cambria County... Read more
Now in its fourth year, the “Reunion” has expended its name to better identify itself and qualify its heritage. It is now “The World Championship Vintage Snowmobile Show and Reunion”, scheduled for September 17 & 18 in Eagle River Wisconsin. Nothing in snowmobiling has grown as vigorously as the... Read more
In order to support their growing customer base, Land & Sea, makers of the DYNOmite dynamometer system, now offers free access to a Users Forum where current DYNOmite owners, Land & Sea Support Team Members, technicians, and engineers all monitor the content. This is a great way for DYNOmite... Read more
Scott Sports of Sun Valley, Idaho recently announced their acquisition of Reima’s motorsports division, primarily Reima’s snowmobiling and street motorcycling apparel businesses. The deal includes Reima’s motorsports team in Finland and their country managers in both Scandinavia and North America. Frank Jornlin, Reima’s business leader for the USA and... Read more
While Polaris boasts about their “new” driveshaft design on their 2005 IQ chassis models (Fusion 900 & RMK 900) this hollow driveshaft was actually found on the 2004 Pro-X models, with little fanfare. This new design is two pounds lighter (that’s rotating mass) for quicker acceleration. It’s a full... Read more

VM Rounds to TM Flats

Tech Shorts September 16, 2004 0
….during a recent discussion regarding roundslide vs. flatslide carburetors, the question arose as to why the OEMs had switched from VM rounds to TM flats. The normal reasons of throttle response, airflow, shorter intake tract length and fuel atomization all came up, but then perhaps the most logical reason... Read more