2006 Ski-Doo GSX models fitted with a VR shock package get an improvement in bump absorption capacity. This has been accomplished by reducing the size and quantity of bypass holes, increasing both compression and rebound damping. Overall the suspension performance is less prone to bottoming, yet remaining very compliant,... Read more
….The 1984 John Deere Sprintfire claimed a dry weight of only 334 pounds (!) using a direct-drive system that eliminated over 40 parts. This was the only liquid-cooled direct drive sled on the market, powered by a 340cc engine, making it the lightest liquid-cooled sled on the snow at... Read more

DNE Quad 1560

Tech Shorts November 1, 2005 0
This four-cylinder 2-stroke – the DNE Quad 1560 – produces nearly 375 HP and 200 foot-pounds of torque. Built by Don Emery at DNE Performance in Ontario, it is based on Rotax 800 triples welded together with stroked Ski-Doo crankshafts. Last winter the sled ran 172.6 mph, consuming between... Read more
Many 2006 Arctic Cat snowmobiles are fitted with a new left hand control block, delivering easier access and control of various functions as well as cleaning up the handlebar layout. This new control block features integral connector headers rather than potted wire harnesses, reducing the amount of wiring that... Read more

Proto Snow Bike

Tech Shorts November 1, 2005 0
In search of a smaller, less expensive, and lighter snowmobile, here is one person’s vision of such a vehicle. Built by James Alexander of Niles, Michigan, this “prototype” snow bike is quite a departure from what you typically think of when you say “snowmobile”. It is still under development,... Read more
A number of the newer sleds are now fitted with “carb heaters”. Many of these route warm engine coolant through the carb body in an attempt to prevent icing of the carbs (and the resulting safety concern of a stuck throttle). Sleds equipped with these systems typically have a... Read more
A fairly common oil-related failure happens when a 2-stroke sled is brand-spanking new. Sometimes, even if there is plenty of injection oil in the oil reservoir, there is air in the oil lines and the pump cavitates for a while, purging the air out of the system. Sometimes this... Read more
How many times have you pulled into a trail-head parking lot, only to find some bonehead (or two or three) has double parked their tow rig and trailer, making it almost impossible for you to safely park your rig? This happens not only in snowmobiling, but with all forms... Read more
Now that the 2006 production snowmobiles have arrived at the dealers, we’ve been able to do some side-by-side comparisons with our traditional favorite Summit windshields. The fixed windshield coming on all of the short tracked REV models this year is very similar to the fixed Summit windshield we’ve been... Read more
The handlebars on the 2006 Yamaha Nytro (shown in red) as compared to the handlebars from the RS Vector (shown in green). Dimensions are in mm. The taller and wider bars on the Nytro help provide a more forward riding position to improve the riding comfort and control when... Read more