William Nawky Snowmobile Auction

Sled Snowmobile Rev

They can be called "APV" by Arctic Cat, "RAVE" by Ski-Doo or "VES" by Polaris. If you own a 2-stroke snowmobile made in the last 15 years, the engine is likely equipped with "variable exhaust power valves". If that is the case, you probably know that you have to be quite diligent about their cleanliness and operation. This is one engine component that has to be monitored regularly to maintain peak performance.

Variable exhaust power valves are moving devices located at the engine's exhaust port. Every brand's variation is there to provide the same essential service and that is to vary the height and width of the exhaust port according to engine RPM. This vastly broadens the power band. At low RPM, the valves are in a closed position which promotes more complete combustion. This improves low-end torque and minimizes unburned gases in the exhaust stream. At high RPM, the valves are wide open which allows for optimum exhaust flow. This enables the engine to rev freely and produce maximum top end horsepower. Older systems were actuated by a mechanical linkage which opened and closed the valves based on engine RPM. Modern systems are actuated by electronic servo motors which precisely position the valves throughout the RPM range. Before the advent of the power valve, engine builders had to determine one size and shape of the exhaust port and exhaust pipe. This predetermined whether the engine would provide its optimum power delivery at either the high, mid or low RPM range. The power valve allows the two-cycle engine to provide usable horsepower throughout its operating RPM range.

The modern power valve system has evolved from a number of different variations over the last 30 years. Yamaha was the first company to find success with this concept when they integrated a variable exhaust power valve system in their 2-stroke Grand Prix road-racing motorcycles in the late 1970's. The technology then made its way to Yamaha's production road and motocross bikes the early 1980's. Other motorcycle manufacturers soon came up with their own systems. By the early 1990's, virtually all high-performance two-cycle motorcycles, ATV's, personal water-crafts and snowmobiles were equipped with variable exhaust power valve systems.

Keeping the power valve system clean is of paramount importance. As power valves are located directly in the stream of the exhaust flow, carbon deposits can accumulate on the valves over time. The deposit build-up can alter the shape of the valves and change the engine's exhaust flow characteristics. In extreme cases, the exhaust port can become completely clogged and expensive damage can occur. Deposits can also can hinder the valve movement or leave them stuck in one spot. Any of these scenarios will drastically impair the power delivery and output of your engine.

The task of maintaining your snowmobile's power valve system is not complicated. Your service or owner's manual will give specific instructions on how to remove and clean the system. Be careful when cleaning the valves, as you do not want to scratch or roughen the surfaces. Your manual will also offer a specific service interval and it should be followed religiously.

Once your valves are clean, there are ways to prevent premature valve depositing. First and foremost is to make sure that your machine is tuned correctly. Overly rich carburetor jetting is a major contributor to this malady. Rich jetting will allow too much fuel into the combustion chamber and this promotes carbon formation. If your sled is fuel injected, make sure that the system is operating correctly. Also make sure that your oil injection system is delivering the proper amount of oil. Perform regular spark plug readings as described in your manual. If your plug readings are off and you cannot determine the cause, contact your dealer.

Another major contributor to power valve depositing is the use of poor quality 2-cycle oil. The cheaper base stocks and additives used in lower grade oils can be cooked into carbon deposits very quickly. High quality synthetic two-cycle oil is notorious for its clean burning characteristics and will dramatically lower the rate of deposit formation. Good quality synthetic oils use sophisticated base stocks and high temperature additives which are engineered to avoid power valve depositing. They also have an effective detergent/dispersant package which will allow for much cleaner operation. When it comes to two-stroke injector oil, you definitely get what you pay for. Spending a little more on an oil that is specifically engineered to provide clean power valve operation will not only improve your engine's performance, it will save the headaches and expense that come with premature power valve depositing.

Snowmobiles operated at low speed and steady RPM over extended periods can also promote deposit build up. During this type of operation, the valves maintain a stationary position and this allows deposits to form. If the valves are constantly changing positions, there is less chance of deposits forming and increasing in size.

Variable exhaust power valves have revolutionized the capabilities of 2-cycle engines. With a little bit of maintenance and care, they will offer trouble-free performance.

Marc Roden is an AMSOIL Dealer in Canada who owns and operates Oildepot.ca. Oildepot.ca offers a complete line of Amsoil Synthetic Snowmobile Oils and Lubricants as well as products for powersport, automotive and industrial applications. Oildepot.ca offers Amsoil Interceptor Synthetic 2-Stroke Oil for Power Valves for injector and premix applications. You can buy AMSOIL products through Oildepot.ca and have product shipped to you anywhere in Canada from distributions centers in Edmonton and Mississauga. AMSOIL wholesale accounts are available for individuals, retailers and commercial entities.

Night View of a Snowmobile Pulling a Sled Across the Lake $39.99 Night View of a Snowmobile Pulling a Sled Across the Lake - Photographic Print

Tourist in a Komatik Sled Behind a Snowmobile on the Frozen Ocean $39.99 Gordon Wiltsie Tourist in a Komatik Sled Behind a Snowmobile on the Frozen Ocean - Photographic Print

Snow Dusted Sled Dogs and Snowmobile on the Sea Ice at Camp $39.99 Paul Nicklen Snow Dusted Sled Dogs and Snowmobile on the Sea Ice at Camp - Photographic Print

Handmade Snowmobile Sled Weathervane $110.16 This weathervane is made of strong 14-gauge steel and is then covered with copper-colored powder-coat paint. This handcrafted weathervane features an eye-catching and unique design. Color: CoppervienMaterials: SteelStyle: Roof, garden, flat, sideWeatherproof Garden height: 60 inchesFlat, roof, side height: 30 inches Dimensions: 30 inches high x 21 inches wide x 21 inches deep

Sled Money Snowmobile Keepsake Box by CafePress $28.5 Get this design, and many more, at SledderWear.com It's your one-stop-shop for snowmobile gifts Snowmobile Keepsake Box This tile box is perfect for stylishly storing knick-knacks, jewelry, or any precious keepsake. Made of solid lacquered Alderwood. Measures 5 1/4 sq. x 2 1/8 with a 4 1/4 tile and hinged lid.

Snowmobile Skipping $68.51 High Quality Content by WIKIPEDIA articles Although the idea seems to defy the odds, the main idea of Water Skipping/Watercross is to cross from one point to another on water while riding a snowmobile. It is possible because snowmobiles have wide tracks for traction and flotation in the snow, hitting the water at an acceptable speed and keeping the sleds throttle open, the track keeps the snowmobile on the surface of the water without sinking. If the rider backs out of the throttle or the sled bogs or floods out, the sled will sink. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 18 Publication Date: 2010/08/22 Language: English Dimensions: 6.00 x 9.02 x 0.04 inches

Camoplast Snowmobile Skis Mounting Kit for Bombardier Rev $139.27 This mounting kit is designed to mount Camoplast skis to your Bombardier Rev snowmobile. This kit features a durable metal and plastic construction.Camoplast Snowmobile Skis Mounting KitModel: 900MKBRDesigned for Camoplast SkisApplication: Bombardier RevMaterials: Metal/plasticDimensions: 4 inches high x 8.5 inches wide x 4.2 inches deep

Woman on Sled Snowmobile Sports Oval Sticker by CafePress $5 Get this design, and many more, at SledderWear.com You're jackpot for snowmobile t-shirts amp; gifts. We have a wide variety of designs amp; styles - we're sure to have more than you even wanted Sports Oval Sticker Our stickers are printed on 4mil vinyl using water and UV resistant inks 150; meaning no fading in the sun or bleeding in the rain. Measures 3 x 5 oval. Printed on durable 4mil vinyl.

Snowmobile Lever Lift Stand $121.99 CMP Snowmobile Lever Lift Stand Features: Lifts sled 7" and adjusts from 14" to 23 3/4" Lever-operated, safety locking pin assures secure operation 19 1/2" wide Weighs 14 lbs.

Snowmobile Stand $89.99 CMP Snowmobile Stand This is the perfect warm up stand for racing or trail riding. Nothing improves the life of you motor, belt, track, and moving components more that warming them up prior to riding. This trackstand sits 22.5" tall and will handle the weight of any sled. Wide rear bumper support holds the sled firmly while you warm it up. Built in sheild provides protection from flying snow, ice, debris, or the occasional loose stud. Black powdercoated steel construction. Also works in the offseason to keep your track and shocks off the ground during storage. Measure your bumper height before ordering to determine if you need this standard stand or the tall stand.

Pro Series Snowmobile Covers $299.95 Skinz Protective Gear Pro Series Snowmobile Covers You might ask, what is the benefit to this cover? This cover is a stretch to fit waterproof cover. It is unlike any in the industry. It will stretch to fit a snowmobile no matter what is added to or taken off from your sled so you don't have to purchase a new cover every year. Features: Universal Design fits any standard snowmobile Lycra body will not tear and rip Accomodates highrise handlebars, mounain bars, handguards, and windsheilds 600D Nylon front and rear panels Machine washable Great for trailering or storage Storage Pouch included Standard cover fits snowmobiles longer than 118" in length from ski tip to rear bumper Made Proudly in the USA Available Sizing: Standard; 118 in. Track and below Extra Long; 118 in. Track and above

Warn Snowmobile Winch $358.95 When dirt and rock gives way to snow and ice, you can still take along the trusted recovery power of a WARN? winch. Introducing SnoWinch 1.5, the industry's first snowmobile recovery system that packs 1,500 lbs. of pulling power to get a sled out of trouble and back on the trail. The system comes complete with everything a rider needs to use the winch on a battery-powered snowmobile, including: integrated mounting plate with fairlead and handle. remote with 10' lead. two D-shackles. 8' and 25' recovery straps. and a Quick Connect plug for easy access to the battery power source. SnoWinch 1.5 can be rigged to pull a snowmobile from either the front or the rear and features 40' of 5/32 synthetic rope that is durable and easy to handle. Stores easily in a custom WARN bag when not in use and weighs just 15 lbs.

Girl on Sled Snowmobile Sports Zip Hoodie by CafePress $45 Zip around town in style with this zip-up hooded sweatshirt. Made of soft fleece, it keeps you and anyone next to you toasty. Yet it's rugged enough for impromptu games of touch football.10 oz. fleece blend 90% cotton/10% polyester< Sports Zip Hoodie Zip around town in style with this zip-up hooded sweatshirt. Made of soft fleece, it keeps you and anyone next to you toasty. Yet it's rugged enough for impromptu games of touch football.10 oz. fleece blend 90% cotton/10% polyester.

Inuit Transport : Kayak, Snowmobile, Sled Dog $9.13 No Synopsis Available

Snowmobile/ATV Tow Strap $19.99 Steadymate Snowmobile/ATV Tow Strap Whether stuck in slulsh, deep powder or have a sled out of commision, ensure you are prepared. This rescue strap should be part of every snowmobiler's tool kit. It is made using durable webbing and Snap Hook ends so it does not come off during use. Can also be used with ATV's. Durable 1 in. web is 15 ft. long Soft loop design protects paint and chrome 835 lb. working load limit

Snowmobile Sled Dawg T-shirts Funny Hooded Sweatshirt by CafePress $45 The snow is here so break out the sleds dawg This funny snowmobiling design is a great gift for your sledding buddies. Great bar t-shirts, hats, stickers beer mugs. Snowmobile Christmas presents Funny Hooded Sweatshirt Tee, TShirt, Shirt The hoodie: the perfect utilitarian piece of clothing. Leave your hat and scarf at home Stay warm and comfy in your Pullover Hooded Sweatshirt. This hoodie is constructed with a cotton/polyester blend - both durable and comfortable.Heavyweight 90

Snowmobile Clocks Sports Wall Clock by CafePress $15 Grey Camoflage Time to Sled Snowmobile Snowmobile Clocks Sports Wall Clock Decorate any room in your home or office with our 10 inch wall clock. Black plastic case. Requires 1 AA battery included.

Girl on Sled Snowmobile Sports Dark T-Shirt by CafePress $26 Get this design, and many more, at SledderWear.com You're jackpot for snowmobile t-shirts gifts. We have a wide variety of designs styles - we're sure to have more than you even wanted Sports Dark T-Shirt Tee, TShirt, Shirt Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable.

Sled Girl Snowmobile Funny Long Sleeve Dark T-Shirt by CafePress $32.5 Get this design, and many more, at SledderWear.com You're jackpot for snowmobile t-shirts gifts. We have a wide variety of designs styles - we're sure to have more than you even wanted Funny Long Sleeve Dark T-Shirt Tee, TShirt, Shirt Our Long Sleeve T-Shirt adds an extra element of style for a casual night out, or to keep the chill off. Made of 100% ringspun cotton for maximum comfort, put on your new favorite T-Shirt from a favorite, trusted name in t-shirts, Hanes.6.1 oz. 1

Sled Dawg Snowmobile Funny Dark T-Shirt by CafePress $26 Are you a Sled Dawg? Show it off with a t-shirt, hat, sticker or beer mug. Snowmobiling gifts for poker runs. Bulk buttons for your crew. Funny sledding Birthday Christmas presents. Snow, snow Funny Dark T-Shirt Tee, TShirt, Shirt Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable.

Sled Dawg Snowmobile Funny Long Sleeve Dark T-Shirt by CafePress $32.5 Are you a Sled Dawg? Show it off with a t-shirt, hat, sticker or beer mug. Snowmobiling gifts for poker runs. Bulk buttons for your crew. Funny sledding Birthday Christmas presents. Snow, snow Funny Long Sleeve Dark T-Shirt Tee, TShirt, Shirt Our Long Sleeve T-Shirt adds an extra element of style for a casual night out, or to keep the chill off. Made of 100% ringspun cotton for maximum comfort, put on your new favorite T-Shirt from a favorite, trusted name in t-shirts, Hanes.6.1 oz. 1

Sled Dawg Snowmobile Funny Dog T-Shirt by CafePress $18 Are you a Sled Dawg? Show it off with a t-shirt, hat, sticker or beer mug. Snowmobiling gifts for poker runs. Bulk buttons for your crew. Funny sledding Birthday Christmas presents. Snow, snow Funny Dog T-Shirt Tee, TShirt, Shirt Put your pooch in his own cool doggie t-shirt from American Apparel. Hersquo;ll be the envy of all the pups in the park. Let him wear a doggie-cool design so he can express what hersquo;d like to bark out loud. Do it up in doggie style Made of

5 Years of Sled Heads DVD $26.99 5 Years of Sled Heads DVD Extreme Velocity: The best of Sled Heads, the first 5 years. Award-winning, action film director Thomas Opre revisits some of his favorite extreme snowmachiners in this exciting new film. A mixture of the past and the present Opre films with Chris Burandt, Geoff Kyle, Chris Brown, Emily Moreshead, Randy Swenson, Ryan Nelson and Bret Rasmussen. He also looks back at his shoots with Cody Borchers, Brett Turcotte and Ross Mercer. This hour long film has some of the best snowmobile cinematography ever shot on film. Plus, Opre selects his top music from some of the best indy bands in North America. Best of Sled Heads: First Five Years is about as good as snowmobile films get. **Closeouts are limited to stock on hand**