973cc

Is replacing a water pump on the 973 something that I can do? LOOKS easy but those are famous last words for me!

Hello, Desperately searching for some help to resolve the issue of the CDI box and coils blowing. I thought I had this resolved with a new CDI box and new coils - replaced them and it fired up instantly. Also replaced the stator with a Yamaha stator last winter to prevent any issues on the...

Hello Yamaha 4 Stroke Engine guru's, My 05 RS Venture 973cc engine threw a rod (about 11000kms) and I'm swapping in an engine from a 06 Rs Vector (about 10000 kms). I bought the Vector complete as a running/trail ready machine at the end of last season but I'm parting it out for the engine and...

Here's a photo album of my nytro's engine after it threw a rod through the side of the motor. Not 100% sure on the cause; it doesn't look like the piston hit the valves and the bearing and wrist pin were loose. Piston also moved freely. Maybe just a fatigue failure? Valves looked good from what...