Yep, 8CR weights are your factory weights.
Good to hear it ran ok for you, and were able to enjoy it!
Good to hear it ran ok for you, and were able to enjoy it!
supercharged111
Member
8300 is where peak power is stock, but it's a pretty broad peak and mine definitely seemed happier at 8500 than 8100.
morecowbell
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@MURDER YAMAHA it was kick ass. Keep the old sled dream alive.
I ordered a set of adjustable weights that indicated they'd fit the 8mm pins on the primary with a 50g base weight, I'll play with it until we're in that 8500 range.... it's peaking at like, 9700 right now
I ordered a set of adjustable weights that indicated they'd fit the 8mm pins on the primary with a 50g base weight, I'll play with it until we're in that 8500 range.... it's peaking at like, 9700 right now
morecowbell
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The longer 151 track length might have something to do with it b/c I didn't swap gearing or the track drivers etc... I would think I'd feel that more as bogging down / loss of RPMs on those steeper hill climbs
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supercharged111
Member
Oof, I think I'll be under 50 on mine even after I get the rivets in. Is that the Thundershifts? They used to make lighter ones.
morecowbell
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Lightest ones I could find that explicitly said they'd fit the 8mm pins for the primary but i'd order something else if y'all have a recommendation. They're the STM Supertip Trail Cam Arms.
9gr difference between them and current arms but I dont have a way to add weight and I'm way, way above the RPM goal. ....
Secondary position is 6/1 with a green spring, btw.
9gr difference between them and current arms but I dont have a way to add weight and I'm way, way above the RPM goal. ....
Secondary position is 6/1 with a green spring, btw.
supercharged111
Member
9700 RPM is nuts, I wonder when they go boom?