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Read and article in Snowtech today on the Polaris S4. Unconfirmed reports of Yamaha engines being fitted into Polaris prototype sleds.They speculated on " perhaps Yamaha has been courting Polaris to build sleds for them in exchange for the use of their engines"
Maybe this is old news but it was...
Yamaha builds thousands of 2 strokes every year. In fact they have recommitted to building 2 stroke motocross and off road bikes and from my observation as a motocross rider they sell out fast. I realize that a new snowmobile engine would require significantly updated technology from where they...
2008 RTX stock except for dupont sliders, Tuner skis iridium plugs and medium windshield. 112 on the speedo on hardpack groomed roadway/trail. RPMs at 9000 on 87 octane. Sled has 5000 miles on it. My other sled is a 2014 Indy 800 SP LE. The Indy and Nytro run tight to 100 mph. Unfortunately my...
Just finished chasing electrical issues with my 08 RTX. My wiring harness had rubbed through at the area right behind the primary clutch, in between the engine and the subframe. 4 wires were toast. Spliced and soldered and everything back to 100 %. Just an FYI.
Have you checked your camshaft timing? Even if you have compression, fuel and spark you sled will not run if the timing is out by one tooth or your cam chain has stretched. It may sputter or backfire but it won't run. I have run into this on 450 cc motocross bikes with twin cams. In each case...
Yamaha has accessory bumpers available through GYTR. Grizz I see you are following this post. Just wanted to let you know that I was very pleased with your gusset kit! Thanks.
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