A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension. The rear suspension includes a toggle link pivotally coupled to the tunnel at a first pivot coupling, a
A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension. The rear suspension includes a toggle link pivotally coupled to the tunnel at a first pivot coupling, and a rear control arm coupled between the slide rails and the toggle link. The toggle link is pivotally coupled to the rear control arm at a second pivot coupling. The rear suspension also includes a carrier roller coupled to the toggle link. The toggle link is movable to a plurality of positions relative to the toggle link to vary the dynamics of the vehicle propulsion.
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1. A snowmobile, comprising: a chassis, comprising a bulkhead and a tunnel;an engine supported by the chassis;a front suspension coupled to the bulkhead;a rear suspension coupled to the tunnel; andslide rails coupled to the rear suspension; the rear suspension comprising: a toggle link pivotally cou
1. A snowmobile, comprising: a chassis, comprising a bulkhead and a tunnel;an engine supported by the chassis;a front suspension coupled to the bulkhead;a rear suspension coupled to the tunnel; andslide rails coupled to the rear suspension; the rear suspension comprising: a toggle link pivotally coupled to the tunnel at a first pivot coupling, and a rear control arm coupled between the slide rails and the toggle link, the toggle link being pivotally coupled to the rear control arm at a second pivot coupling;a carrier roller directly coupled to the toggle link, the carrier roller being movable to a plurality of positions relative to the toggle link to vary propulsion dynamics of the vehicle; anda front control arm coupled between the slide rails and the tunnel. 2. The snowmobile of claim 1, wherein the toggle link has a front and rear coupling link, and the carrier roller is mounted in a position generally lower than the front and rear coupling link. 3. The snowmobile of claim 2, wherein the carrier roller is mounted in a position generally centrally located relative to the front and rear coupling link of the toggle link. 4. The snowmobile of claim 2, wherein the carrier roller is mounted in a position generally rearwardly located relative to the front and rear coupling link of the toggle link. 5. The snowmobile of claim 2, wherein the carrier roller is mounted in a position generally forwardly located relative to the front and rear coupling link of the toggle link. 6. The snowmobile of claim 1, wherein the carrier roller is movable within a box-shaped range defined relative to the first and second pivot couplings. 7. The snowmobile of claim 6, wherein the box-shaped range is positioned below a reference line (R) which extends between the first and second pivot couplings. 8. The snowmobile of claim 7, wherein the box-shaped range is positioned between lines (A1, A2) below the reference line (R). 9. The snowmobile of claim 8, wherein the line A1 is approximately 80 mm. 10. The snowmobile of claim 8, wherein the line A2 is approximately 225 mm. 11. The snowmobile of claim 7, wherein the box-shaped range is positioned rearward of a tangent line (T) which extends through the first coupling, and is tangent to the reference line (R). 12. The snowmobile of claim 11, wherein the box-shaped range is positioned between lines (B1, B2) rearward of the tangent line (T). 13. The snowmobile of claim 12, wherein the line B1 is approximately 60 mm. 14. The snowmobile of claim 12, wherein the line B2 is approximately 225 mm. 15. The snowmobile of claim 1, wherein the carrier roller is positioned 99-320 mm below the first pivot coupling. 16. The snowmobile of claim 1, wherein a rotational axis of the carrier roller is positioned away from the first pivot coupling by a distance along a reference line R, and a length of the toggle link between the first pivot coupling and the second pivot coupling equals D, and wherein a ratio of R/D is within a range of 0.34 to 1.097. 17. The snowmobile of claim 1, further comprising an endless track operably coupled to at least a portion of the slide rails and the carrier roller is positioned interior of the endless track. 18. The snowmobile of claim 1, wherein the toggle link includes a plate and the carrier roller is coupled to the plate. 19. The snowmobile of claim 18, wherein the plate includes a plurality of holes and a center of rotation of the carrier roller is aligned with at least one of the holes. 20. The snowmobile of claim 18, wherein the toggle link has a front coupling link and a rear coupling link, and the plate is positioned between the front and rear coupling links. 21. The snowmobile of claim 18, wherein the carrier roller is directly coupled to the plate.
Abbe David C. (1780 E. Chase Ave. El Cajon CA 92020) Tatone John M. (62 Bellhaven Daly City CA 94015), Self-contained muffler attachment and conversion kit for small two-cycle engines.
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