167 HP
around 125
The gas oil mixture for that sled is 24:1 according to the tag on my 79 srx.
If it is a Powervalved SRX, not an SXR, 135-140 is a safe bet, depending on your jetting and other carb settings.
The 1999 Yamaha SRX 600 snowmobile is equipped with a 600cc two-stroke engine that produces approximately 120 horsepower. This model is known for its performance and agility, making it popular among snowmobile enthusiasts. The horsepower can vary slightly based on specific tuning and modifications, but 120 hp is the standard figure.
The 1998 Yamaha SRX 700 snowmobile is equipped with a 700cc two-stroke engine that produces approximately 130 horsepower. This performance makes it one of the more powerful snowmobiles of its time, providing a strong blend of speed and acceleration for enthusiasts.
I get 11mpg with a 2000 3cylinder Yamaha SRX 700. Newer small models could probably do around 17 mpg it all depends on how big your snowmobile is, how much it weighs, and how you drive it personally, it all varys on how the driver handles it
the vin on a Yamaha snowmobile is usually found on the right side where your foot is placed.
jetting on 2000 srx is147.5,146.3,146.3. jetting on 2001 srx is 150, 148.8, 148.8.
1983
Yamaha snowmobile jackets are available for sale on the websites of Yamaha's official international subsidiaries. You can also find these for sale at an online store such as eBay or Amazon.
To set the carburetor on a 1987 Yamaha SRX 540 snowmobile, first ensure the engine is at operating temperature. Adjust the idle speed screw to achieve a stable idle, typically around 1,200 RPM, and then fine-tune the air-fuel mixture screws for optimal performance, usually starting at 1.5 turns out from fully seated. Test the throttle response and make minor adjustments as needed, ensuring there are no bogs or hesitations. Finally, always refer to the specific service manual for detailed specifications and adjustments.