An auto-enrichener for an all terrain vehicle, including an enriching conduit for carrying fuel and air to an engine, and a valve disposed in the conduit. The valve is adjustable between at least an open configuration and a closed configuration. In the open configuration passage of fuel and air…
A method for improving engine performance, by increasing fuel efficiency and/or power output, and/or by decreasing the output of pollutants. When the temperature of the engine's exhaust system is lower than a target temperature, the ignition position of the cylinders of the engine is changed such…
The present invention relates to a transmission for a recreation vehicle, such as an all-terrain vehicle that includes a locking assembly for locking a differential joint in the front- or rear-end portion of the transmission. A vehicle having both front and rear differentials may include separate…
Herein is disclosed a snowmobile configured to start in response to a remote-start signal. One embodiment of the invention includes a snowmobile outfitted with a remote starting system (100). The remote starting system, itself, includes a remote starting activation switch (102) that transmits a…
A suspension control system that is useful with a snowmobile, ATV, and other recreational vehicles, comprising: a main body (34) defining a shock absorber, a piston disposed within the shock absorber, a remote reservoir (40), a control valve housing (54), a control valve (56), a GMR sensor (57)…
A sectional receiver rack includes a main framework piece that is attached to a mounting surface of the personal recreational vehicle. The main framework may be flat and may be fashioned generally in the image of a cargo rack. The main framework may have mounting flanges for facilitating its…
An all terrain vehicle (100) is provided with one or more wheel fenders (110) that double as storage compartments. The fenders define a hollow volume into which a variety of desired items can be placed for storage. An acces opening provides access to the hollow volume. A door (116) can be attached…
A flexible shaft starter system for an internal combustion engine of a recreational vehicle. The internal combustion engine is mounted to a chassis of the recreational vehicle and has at least one driven member. The flexible shaft starter system includes a starter having an output shaft and is…
A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) arc used. The engine exhaust gas temperature is sensed and is used to determine the particular ignition pattern…