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M1200 / Union bay 900
I had a very similar problem with my 05' M7(900). It had V-force reeds, BMP single pipe and Can, high flow air intake, boondocker control. I was given fuel setting that were suposed to work with this engine. My clutching was 80 gram at 3000 feet, 36 degree torisional helix with actice green spring. This sled pull hard until it hit around 6500 rpms and fell on it face. I started checking everything, but all seemed to be working fine. I started leaning out my boondocker setting at 7800 and 8200 rpms to the point that I thought for sure I would melt it down. The engine started pulling 8000 rpms, but the fuel setting were way out of range. (example 7800 00 -03 -02, and the number I was given were at 7800 were 05 08 11) Come to find out I needed a little more timing. I installed a 2 degree timing key and put the orginal setting back into the boondocker changed my rear helix to 42/36 and the sled ran excellent. It was lacking timing. Some time you might think you sled is running to lean, but it may be running extremly RICH.
I had a very similar problem with my 05' M7(900). It had V-force reeds, BMP single pipe and Can, high flow air intake, boondocker control. I was given fuel setting that were suposed to work with this engine. My clutching was 80 gram at 3000 feet, 36 degree torisional helix with actice green spring. This sled pull hard until it hit around 6500 rpms and fell on it face. I started checking everything, but all seemed to be working fine. I started leaning out my boondocker setting at 7800 and 8200 rpms to the point that I thought for sure I would melt it down. The engine started pulling 8000 rpms, but the fuel setting were way out of range. (example 7800 00 -03 -02, and the number I was given were at 7800 were 05 08 11) Come to find out I needed a little more timing. I installed a 2 degree timing key and put the orginal setting back into the boondocker changed my rear helix to 42/36 and the sled ran excellent. It was lacking timing. Some time you might think you sled is running to lean, but it may be running extremly RICH.
