Is the mountian max 700 have the same motor as the regular srx in 2000?

No the mm motor didnt have powervalves like the srx. It also only had a sigle pipe whereas the srx had tripple pipes.

there was one year and one year only in canada anyway where yamaha made a srx mountain. thats what it was called srx mountain not mountain max. 1998. the 2000 mountain max motor does not compare to a 2000 srx motor. as the other post said many signicicant differences. power valves one vs three pipes. the horsepower difference is quite significant 144 vs 108 are the numbers I have heard. there are other differences too the srx although more powerful is as good or better on gas. the srx motor has way way more torque. most of these gains are as a result of the power valves. the srx motor is quite a bit heavier.

It's a completely different motor, plain and simple. SRX is the only Yamaha that ever had the 700 triple piped powervalve motor. SRX Mountain was made in '98 and '99 in the U.S.A, not sure on Canada.

Yes SRX Mountain was for sure '98 in Canada. Not sure about the States. Only 2500 made in Canada, I heard. I just bought a bone stock one in mint condition. Pretty impressed just getting back into sledding after a 20 year hiatus ! Looking forward to adding a bunch of high perf. goodies.

KC

I have a mint condition 1998 SRX Mountain Max for sale.
E-mail me at mpottorff@gmail.com for info
Yamaha only made this sled one year 1998
MOUNTAIN




NEW! MOUNTAIN SRX 700

Let's start at the top, with the new Mountain SRX 700. The first thing you'll notice when you set your eyes on this sled is the new hood shape, painted in the stunning blue color of Team Yamaha racers. Backing up that competitive look is equally powerful performance under the hood. Tucked deep and low in the lightweight ProAction System chassis is a high-tech, three-cylinder 696 cc engine with new engineering, attached to triple exhaust pipes tuned to maximize horsepower.

Compact and lightweight, the Yamaha powerplant has a new crankcase, crankshaft, cylinders, pistons and heads. Engineering features include triple TM33 flat-slide carbs, case reed induction and triple exhaust ports. Yamaha engineers report the new engine delivers the highest horsepower in its class, offering deep-powder riders the ultimate in Yamaha performance for the '97-'98 riding season.

ELECTRONIC POWER VALVES

Triple pipes account for a good share of the big HP advance in the new SRX. Another is Yamaha's ability to design and build the trickest, highest-tech features in the sport. On the SRX, that includes a computer-controlled exhaust power valve system, with technology borrowed from gran prix motorcycle racing.

Competitive power valve designs are activated by exhaust pressure or cylinder pressure. Yamaha's new system is electronically controlled. A computer monitors engine RPM, then feeds the information to a servo motor. The motor in turn adjusts the exhaust valves for optimum timing and maximum horsepower across the entire powerband.

Yamaha engineers also made the power valve system self cleaning, preventing carbon buildup and valve sticking problems sometimes experienced with competitive systems.

Another SRX exclusive is a new air management system designed to control air flow from intake to muffler for maximum performance. There's an advanced air flow design within the crankcase engineered to optimize scavenging efficiency and horsepower, and large-diameter triple exhaust pipes are shaped for efficient exhaust flow and maximum power.

ADDITIONAL FEATURES

If all this premium, high-tech engineering isn't enough to grab the attention of performance-minded mountain riders, the following list of additional features on the new Mountain SRX 700 certainly will:

The 136-inch Mountain Master Track has a 1.5-inch high profile for superior traction and flotation.
New! Plastic skis are light in weight and enhance sidehilling.
New! Large-diameter speedometer and tachometer are easy to read.
New! Large, 34 mm crankshaft and new roller bearing design provide extra durability for the high-output 700 engine.
New! Large-capacity heat exchangers help optimize cooling.
New! 15-plate drive chain is designed to handle the power of the SRX engine.
New! Powder metal forged pistons, brand new technology from Formula I automobile racing, enhance performance and durability.
New! Plastic suspension wheels are lightweight and efficient.
New! Thermostat in cooling system allows engine maintain a consistent temperature.
New! Large-capacity coils in Digital C.D. ignition provide strong, consistent ignition spark.
New! Engine torque rod maintains clutch center-to-center distance for optimal performance.
New! Liquid-heated carburetors to maintain throttle response and fuel economy.
Lightweight, ProAction System chassis with all-aluminum frame and one-piece, die-cast aluminum bulkhead subframe has up to twice the torsional rigidity of competitive designs for premium handling.
Advanced independent Front Suspension uses long, tapered trailing arms for superior strength. Spindles feature large, wide splines to maintain ski alignment better than competitive designs. Rebuildable, aluminum-body KYB gas shocks have adjustable spring preload. Needle bearings minimize friction. Link-type stabilizer bar enhances handling.
ProAction Plus X long-travel rear suspension is consistently rated #1 for the plushest ride in snowmobiling. Rebuildable, aluminum-bodied KYB gas shocks have 1 1.5 inches of true, useable travel. Bearings or bushings at key pivot points reduce friction for quick, efficient action. A 3-position rear shock mount allows changing effective spring rate without changing springs.
Advanced hydraulic brake features a high-quality Nissin master cylinder with "dog-leg" lever requiring one or two-finger effort. Rotor has interpassage ventilation for low brake temps and consistent braking. Separate mechanical parking brake.
Two-position bracket allows rear suspension to be adjusted for greater chassis clearance in deep snow.
Mid-height windshield, full instrumentation, industry-exclusive adjustable hand and thumb warmers and a 12 gallon fuel tank.