What compression should be in the ski doo 550 f snowmobile engine

The BRP Ski-Doo Tundra LT 550 F is a classic utility snowmobile with the longest track in the segment. The model represents the Ski-Doo family of cars (manufacturer – Canada). The Tundra series is positioned as an inexpensive alternative to more advanced modifications of the brand and Yamaha snowmobiles. At the same time, the equipment has excellent grip and a large power reserve.

The Ski-Doo Tundra Series comes in one color. The basic configuration of the model is minimalist. Previously, it did not even have an electric starter, which was installed as an option. At the same time, the snowmobile had everything for comfortable movement: comfortable steel steering handles with curved ends, a 10-inch windshield and a REV-XP seat.

A special feature of the series is the eDrive clutch mechanism, which is paired with a powerful motor. In the brand's lineup, Ski-Doo Tundra modifications are considered budget models, but they are not deprived of pleasant details. All snowmobiles in the series are equipped with a hydraulic brake and reverse.

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Ski-Doo Tundra LT 550 F is one of the most successful Ski-Doo models, built on the REV-XU platform. The lightweight utilitarian version features excellent cross-country ability. Any areas and landscapes can be conquered by technology. The model is suitable for beginners as it has simple controls. The high seating position reduces leg and back fatigue during long journeys. Improved suspension allows you to confidently control the snowmobile on groomed trails, and the new Pilot 6.9 skis perfectly cope with any tasks in the forest or in difficult terrain. The low weight of the model and the wide track facilitate easy passage of virgin soil.

Standard equipment on the Ski-Doo Tundra LT 550 F:

  • high windshield;
  • painted steel handlebar with mountain line and J-ends;
  • heated handles;
  • electric starter;
  • passenger seat (backrest available as an option);
  • fuel level indicator;
  • speedometer;
  • tachometer;
  • digital multifunctional information center with display;
  • rear view mirror (optional);
  • rear bumper;
  • spacious rear trunk;
  • towbar (optional);
  • halogen headlight;
  • yellow color.

The Ski-Doo Tundra LT 550 F immediately catches your eye thanks to its interesting design. The charismatic model has excellent maneuverability and reliability and is suitable for any user.

Snowmobile BRP Ski-Doo Tundra LT 550 F

BRP Ski-Doo Tundra LT550 F is a Canadian-made snowmobile, which is one of the most technologically advanced similar devices today.
A special feature of this model is the longest track in the class, which, of course, affected the geometric cross-country ability. Considering some advanced parameters, it is fair to say that the Ski-Doo Tundra LT 550 F is a more affordable alternative to the Japanese Yamaha snowmobiles, which are considered the most technologically advanced. At the same time, products from BRP are not inferior to Yamaha in most respects - the snowmobile in question has very high-quality traction and tracks, as well as a large power reserve. The Ski-Do Tundra LT 550F snowmobile family of the same name is available in a single color. The basic configuration does not differ in any unnecessary elements, and strictly follows the principle of conservatism. Previously, the basic version did not even have an electric starter, which appeared with the advent of the update. The car received all the necessary options that are aimed at increasing comfort when moving. Note the ergonomic curved handlebar grips, the large 10-inch windshield and the adjustable REV-XP seat.

Other features of the series under consideration include the eDrive clutch with a unique mechanism. The clutch is designed to work with a powerful engine. Also included in the package is reverse and hydraulic brake.

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Ski-Doo Tundra LT 550 F is a versatile snowmobile that is in demand on the global market. The vehicle is based on the time-tested REV-XU platform and is distinguished by excellent geometric cross-country ability. The equipment is able to overcome any areas and landscapes. The Canadian snowmobile is in demand among novice users, which is understandable, because this machine can be easily learned to operate. In addition, everything in the snowmobile has been done to make the driver feel comfortable and less tired. For example, to reduce leg and back fatigue, a high seating position is provided, which is suitable for long trips. The improved chassis provides good directional stability on hard-packed roads. This is also facilitated by proprietary Pilot 6.9 skis of our own production, thanks to which the snowmobile perfectly overcomes obstacles in hard-to-reach places - for example, in the forest. Thanks to its low weight and wide track, the snowmobile of the same name is able to move on virgin soil without any problems.

Standard items:

  1. Large windshield area
  2. Metal handlebar with J-shaped ends
  3. Heated grip function
  4. Electric starter
  5. Second (passenger) seat with optional backrest
  6. Instruments showing fuel level, speed, mileage
  7. Multifunctional instrument panel with color display
  8. Rearview mirror
  9. Rear luggage compartment
  10. Towbar
  11. Halogen light optics
  12. Yellow body color.

Technical specifications:

  1. Dimensions, mm: Length/width/height: 3343/1002/1325
  2. Ski base – 813 mm
  3. Track dimensions, mm: Length/Width – 3923/406
  4. Height of lugs – 38 mm
  5. Total capacity – 2 people
  6. Dry weight – 227 kg.
  7. Front suspension – telescopic, LTS
  8. Front shock absorbers/front suspension travel – Motion Control Shocks/150 mm
  9. Rear suspension – SC-5U
  10. Rear Shock Absorbers - HP
  11. Rear suspension travel – 355 mm
  12. Transmission – automatic, CVT
  13. Downshift, upshift - no
  14. Drive/driven variator pulley – BRP Lite/LPV 27
  15. Mechanical reverse – yes
  16. Brakes – hydraulic disc, Brembo.

Engine

The BRP Tundra LT 550F snowmobile received a time-tested Rotax 550F two-stroke power unit. This motor was originally developed more than ten years ago, but is still relevant today thanks to numerous upgrades. Before this power plant, BRP used the Rotax 500 internal combustion engine, which is also considered legendary. The updated engine, which is installed in the BRP Ski-Doo Tundra LT 550F snowmobile, is intended for budget snowmobiles. It has a long service life and excellent driving characteristics. The two-carburetor engine has a special design that ensures precise dosing of the fuel mixture. The cooling system for the motor components is represented by a conventional fan. To simplify and reduce the cost of the engine design, the developers abandoned the DESS electronic anti-theft system - of course, it can be installed as an option. In general, the model under consideration received a minimum number of auxiliary electronic systems, which made it possible to keep the price level at an acceptable level.

The proven two-stroke design stands out for its high efficiency and environmental friendliness. We also draw attention to the high maintainability and availability of spare parts, which is very important for the Russian consumer, especially for those who live in the northern regions of Russia. With a working volume of 0.5 liters, the power unit develops 57 horsepower. The compact two-cylinder layout weighs relatively little and consumes 92-octane gasoline. The cylinder diameter is 76 mm. Fuel tank capacity – 40 liters; oil tank - 3.7 liters.

The average cost of a BRP Ski-Doo Tundra LT 550F snowmobile on the Russian market is around 750 thousand rubles. The price is for a new machine, but it is extremely difficult to find such a device. It makes sense to pay attention to used snowmobiles released in 2007 and 2008. Their cost remains at the level of 250-320 thousand rubles. More recent versions, released in 2011-2012, can be purchased for 390-450 thousand rubles. And finally, for a snowmobile made in 2015 you will have to pay about 430-520 thousand rubles.

Element characteristics:

Chassis:

  • front suspension type – LTS (telescopic);
  • front suspension shock absorbers - Motion Control shocks (oil);
  • front suspension travel – 150 mm;
  • rear suspension type – SC-5U (with elastic pendulum);
  • rear suspension shock absorbers - HP (oil);
  • rear suspension travel – 356 mm.

Transmission:

  • transmission type - CVT;
  • low/high gears – none;
  • drive – belt;
  • variator drive pulley – BRP Lite;
  • variator driven pulley – LPV 27;
  • reverse – mechanical (at the press of a button);
  • Braking system – hydraulic disc (Brembo brakes).

Engine

The BRP Ski-Doo Tundra LT 550 F is powered by a Rotax 550F 2-stroke engine with nearly 10 years of history. Its predecessor was the time-tested Rotax 500 motor. The modernized version was positioned as an inexpensive unit for budget snowmobiles. At the same time, the Rotax 550F has a long service life and excellent characteristics. The power plant is equipped with 2 carburetors, which ensure precise dosing of the fuel mixture. Cooling is carried out by counter air flow and a fan.

Rotax 550F Engine Features:

  • lack of anti-theft electronic system DESS;
  • presence of “suction”;
  • minimum amount of electronics.

The Rotax 550F is a classic 2-stroke engine, so efficiency and environmental friendliness are not its strong points. The simplicity of the design makes the engine a standard of reliability and simplifies its maintenance.

Characteristics of the Rotax 550F unit:

  • working volume – 553.4 cc;
  • rated power - 57 hp;
  • number of cylinders – 2;
  • cylinder diameter – 76 mm;
  • The recommended type of fuel is AI-92 gasoline.

The fuel tank holds up to 40 liters of fuel. Oil tank capacity – 3.7 l.

Snowmobile "Skido Tundra" - detailed review

Anyone who understands snowmobile technology certainly knows what characteristics a snowmobile should have. One of these characteristics is high cross-country ability. The SKI-DOO TUNDRA LT 550 is famous for its cross-country ability. This is achieved through a lightweight RF control system platform. In addition, the unit is very ergonomic and does not contain anything superfluous. Thanks to the high seating position, every trip turns into a pleasant pastime. The driver's back, arms and legs do not experience discomfort. Pilot 6.9 skis provide the best guidance for your snowmobile, even in dense forest conditions. The SC-5U suspension system allows you to efficiently overcome various snowy areas, without any shaking or vibration.

Snowmobile "Skido Tundra 550"

The snowmobile is characterized as a high-speed machine, which together has excellent maneuverability, power and dynamic qualities. It is worth noting the high maneuverability of the snowmobile. It is difficult to find places where he will “sit”. Due to the moderate seat width, the snowmobile is very comfortable to travel through areas in a standing position. The ride is also comfortable in a sitting position. The back and legs do not experience discomfort or any difficulties. The telescopic front suspension properly ensures good handling and a smooth ride of the snowmobile.

Price

Currently, it is difficult to find a BRP Ski-Doo Tundra LT 550 F snowmobile without mileage. The average cost of a new model is in the range from 700,000 to 760,000 rubles.

There are much more used options on the Russian market. The final price tag here is determined by the mileage and condition of the snowmobile. Average prices:

  • 2007-2008 – 250,000-320,000 rubles;
  • 2011-2012 – 390,000-450,000 rubles;
  • 2014-2015 – 430,000-520,000 rubles.

Owner reviews

  • Alex84: I have owned a Ski-Doo Tundra LT 550 F for almost 5 years. For me, the choice in favor of this snowmobile was due to several reasons. I was going to ride alone or with my son; I planned to carry a small load on the sled (100 kg, maximum 150 kg), so a powerful and expensive device was not needed. A narrow gooseneck and a fairly powerful engine made it possible to drive a little. For driving across the field and infrequent trips to the forest for hunting, this snowmobile should have been enough, and the light weight simplified the process of pulling it out of the snow captivity. In the end, I got it right with the purchase. In addition to the above advantages, the Tundra LT 550 F also turned out to be a very reliable car. I continue to use the device and do not plan to sell it.
  • Russian: Ski-Doo Tundra LT 550 F is a decent snowmobile. For a beginner it will be the best option. Maneuverable and playful, but at the same time easy to control. I usually ride it alone, but the snowmobile carries two people no less confidently. The load also carries well. The maximum load was as follows: things, provisions, two people on a snowmobile and two on a homemade foam. The Tundra LT 550 F coped with the task perfectly, although the speed was low. One full tank is enough for almost 100 km (without heavy load). There have been no serious bugs yet, only positive impressions. The only downside is high fuel consumption.
  • Murmansk: I went to the BRP showroom for a completely different model, but the seller convinced me that I didn’t need anything else besides the Tundra 550. In the end, I chose this snowmobile and was not disappointed. In terms of price, the snowflake was one of the cheapest, but in terms of cross-country ability, it is an absolute cosmos, you can get it from anywhere. Everything is extremely simple and convenient to manage. From time to time I ride with a neighbor who has a Yamaha Aventura. What I want to say is that I had to push him out 7-8 times, but I never planted mine. The only thing I don’t like about my snowman is that it smokes like a steam locomotive, and my clothes stink for a long time after a trip. If I change the Tundra 550, it will only be for a 4-stroke snowmobile.
  • Victor: The Ski-Doo Tundra 550F is a completely normal snowmobile, but it has a lot of disadvantages. I have been using the technique for 5 years and have managed to study it thoroughly. It is not suitable for serious work because it is quite weak. It doesn't go well in deep snow, but it consumes a lot of gasoline. The dashboard has a minimal number of sensors. There are no complaints about the quality of the snowmobile (everything is assembled perfectly, the components are reliable), but getting to the engine and main elements is difficult. It is impossible to carry out repairs and maintenance of the Ski-Doo Tundra 550F yourself; everything must be done through a dealer, which is quite expensive. The model is quite controversial, but it is definitely not inferior to domestic snowmobiles.

Snowmobile "Skido Tundra" - detailed review

Anyone who understands snowmobile technology certainly knows what characteristics a snowmobile should have. One of these characteristics is high cross-country ability. The SKI-DOO TUNDRA LT 550 is famous for its cross-country ability. This is achieved through a lightweight RF control system platform. In addition, the unit is very ergonomic and does not contain anything superfluous. Thanks to the high seating position, every trip turns into a pleasant pastime. The driver's back, arms and legs do not experience discomfort. Pilot 6.9 skis provide the best guidance for your snowmobile, even in dense forest conditions. The SC-5U suspension system allows you to efficiently overcome various snowy areas, without any shaking or vibration.

Snowmobile "Skido Tundra 550"

The snowmobile is characterized as a high-speed machine, which together has excellent maneuverability, power and dynamic qualities. It is worth noting the high maneuverability of the snowmobile. It is difficult to find places where he will “sit”. Due to the moderate seat width, the snowmobile is very comfortable to travel through areas in a standing position. The ride is also comfortable in a sitting position. The back and legs do not experience discomfort or any difficulties. The telescopic front suspension properly ensures good handling and a smooth ride of the snowmobile.

There is an opinion that the Tundra is squinting due to the narrow caterpillar. Practical tests and tests have shown that this is not true. Even with extreme driving, it is difficult to roll a snowmobile on its side. That is, we can safely conclude that the Skido Tundra 550 is ideal for forest conditions. By the way, if you expect fast driving with constant maneuvering, then it is better to drive the snowmobile alone.

I would also like to say a few words about the practical purpose of the snowmobile. Despite the powerful engine and decent traction characteristics, you won’t be able to haul packed trailers with firewood on this snowmobile. If this is a well-worn road, then you can still try. But if it’s loose snow, it certainly won’t work. At night it is very convenient to ride due to the front headlight. Its light illuminates the road efficiently.

Appearance

The snowmobile looks very modern, despite its “tourist” purpose. Designers and constructors worked hard before putting the snowmobile on the mass market. On the front you can see a protective bumper, which will protect the equipment from severe damage when colliding with tree stumps. The windshield eliminates the impact of headwinds and snow on the driver while traveling.

Looking at the snowmobile from the side, you can see a fairly long platform, a set of rollers and a caterpillar track with hooks. There is a luggage area at the back, thanks to which an additional compartment – ​​a trunk – can be installed. To minimize the level of discomfort during long trips, a special backrest is provided for the passenger.

Technical characteristics of the SKI-DOO TUNDRA LT 550

The productive element is a two-stroke power unit with a displacement of 553 cc. There are two cylinders installed, each of which has one carburetor. The snowmobile's power is 57 hp. The engine receives the necessary cooling due to the flow of the oncoming engine. The dry weight of “TUNDRA LT 550” is 227 kg. Main parameters of the model: length - 3310 mm; width - 957 mm; height - 1220 mm. Track parameters: length - 3923 mm; width - 406 mm. Skis are installed, the type of which is “Pilot 6.9”. The fuel tank is designed for 34 liters of fuel, the oil tank - 3.5 liters of oil. Capacity – designed for two people. An oil suspension is installed at the rear and front.

Owner reviews

  • “Simple controls, fairly fast snowmobile, powerful engine. Ideal for traveling through dense forests. Valency is very low. High cross-country ability, which is achieved thanks to the height of the hooks of more than 30 mm. Gives a “light” to many Yamahas that cost incredible amounts of money. A very nimble snowmobile, weighs little. It’s especially nice to ride a snowmobile alone while standing, when you just feel unreal control over the equipment.”
  • “It’s difficult to find something more suitable for hunting. Lightweight, if it “sits” somewhere, then two adults can pull it out. The engine starts without problems even at -40. Among the shortcomings, I can say about the carburetor, which “likes” to freeze sometimes.”

  • “Whatever they say, but in terms of fuel consumption it cannot be called “gluttonous.” The low weight allows you to ride on loose snow without slipping. Excellent maneuverability, good lighting at night. Thanks to the even distribution of the weight of the snowmobile, it is easy to get out of the snow in reverse. It’s quite economical; if you fill up a full tank, you can drive about 180 km.”
  • “Yes, I agree this snowmobile is very reliable. Overall it has a lot of advantages. But I can say one thing with complete confidence - if you are going to do any work (transport firewood, etc.), then it is better not to purchase this equipment. This is certainly not what it was created for. We need something more powerful, at least take a closer look at the Tundra 600 snowmobile.”

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