99 summit 670 mod help

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Otisjohanson

Free Member

Aug 23, 2011

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• Aug 23, 2011

• #1

I just bought this sled haven't gotten to ride it yet but I want to do some
Modifications to it this year. I'd really like to be able to hit the throttle and pull the skis off the ground! When I bought it I was told the the clutches were redone the engine is bored and it has a ceramic coated exhaust! It also has Simmons skis and a 2" riser on it! I'd obviously ride it before dumping a bunch more money in it but does anyone have any suggestions on how to make this sled killer?

 

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sledsrock

Well-known member

Nov 26, 2007

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Grand Junction, Co.

• Aug 23, 2011

• #2

So you want a wheelie machine.....soften rear torsion springs, loosen limiter all the way out, tighten front skid spring. That's all it will do is wheelie, not good for anything else. Now define "make this sled killer".

 

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Otisjohanson

Free Member

Aug 23, 2011

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• Aug 24, 2011

• #3

I don't want it to just wheelie! Haha I mean what can I do to add as much power as possible without getting crazy and dumping a new engine in or anything?

 

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summit800

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Jul 29, 2001

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Graham, wa.

• Aug 24, 2011

• #4

670

I use to have one ,great sled,, 501 rotory intake, twin pipes ,shaved head, ufos in the carbs, I think sled head racing still can help you out,Id give big john a call

 

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summit800

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Jul 29, 2001

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Graham, wa.

• Aug 24, 2011

• #5

Not sure where you live ,if you ride in the mountains Id roll the chain case and go with a 2'' paddle track