Turning 5400 rpms at 30mph seams a little high to you? It only has 9hs on it,the belt isnt slipping and it is in high gear.What do you all think? I have to make the 10hr apt for it and going to ask about a clutch kit for it. Thanks

 

I thought was on 'L' when I briefly test-rode the 800: 4K rpm or so at 25 man. Don't know how long the engine is going to last like that. I also wonder what's the redline on the 700 and 800. Probably lower on the 800 since it's a stroked-out version of the 700. I think the 500 has DOHC, isn't it? That'd rev much higher for sure. Plus the tiwns have hydraulic lift adjusters, which can't rev much higher than 6K (I don't care, as long as no valve adjustments are needed).

Don't think a clutch kit will fix it, since it's the way the tranny is designed. I'll follow this thread to hear from the experts.

JC

 

im running about 6500 RPMs at 60 mph and about 4500 at 30 right now... are you reading your rpms after running right up to 30 or after running at 30 for a few seconds

 

The 500 HO motor is a SOHC and redlines around the 6700 rpm mark. The Predators 500 motor is a DOHC and redlines in the mid to upper 9K range. It is also capable of over 10K RPM

 

i don't think it's high ... but i like to cruse at about 4900 to 5100 rpm and get what every speed that rpm gives me.

 

The stock clutching is optimized to keep the engine in it's most efficient RPM range over a wide variety of speeds. You can expect 4500-6000 rpm for most riding conditions. I'm not sure of the exact power curve, but this range is where the engine makes the most power. The Fuji motors are designed to operate at these rpms, so I would not worry about engine fatigue.

 

That rpm sound right, I am assuming that was on flat ground. mine does 5200 on the flat @ 30 mph and 4200 @ 30 mph going down approx 8% grade, going up the 8% grade probably 6200

Mines a 2004.5 500 HO

 

Thanks fellas