At what RPM's should the clutch/belt kick in?

[fishtank]

Took mine out for the first real spin. Started off at low altitude and had some bogging issues (lean burn?) but once we got up around 6000ft she was perfect.

Anyway, the clutches dont seem to engage until I rev to about 4000rpm or so. Is this correct or is the clutch spring possibly needing replacement?

 

[fishtank]

Anyone?

 

[Biglizard1]

thats about where mine engages.. and when running down trail its about 5K

 

[fishtank]

Sweet, its just normal then, my mates skipoo seems to engage at much lower revs but then again his is a much smaller machine.

 

[Idcatman3]

We clutch out sleds a lot different than the factory does. We bring the clutch engagement down to ~2500 RPM, it's much smoother that way.

 

[1Mike900]

Idacat that is really low. I would have thought 3200 min. It has enough oomph to get things moving at that RPM? Did you re-gear lower?

Thanks Mike

 

[fishtank]

How do you do that? Re-gear or using the clutch springs/weights?

 

[Idcatman3]

We're also not quite stock though, that's with the 975 kit. I don't remember stock being a lot different though. I'll have to check what we've got for gearing.

You change engagement primarily with the spring, weights play a part too, but mostly the spring.

 

[Arctic Thunder]

unless I missed is how can anyone tell this guy where a sled should engage if we don't know what he is riding.

I can tell ya 4000 is to low on a 2001 mountain cat 600. But 4000 is to high for a king cat.

What ya got for a sled?

Thunder

 

[Rocknrone]

Mountain Cat 800, at 4500 ft. mine engages around 3500 rpms.

Up in the hills about 10,000 ft., when she warms up, it's around 4000 rpms to hook up.

 

[Rixster]

It all depends on your spring in your primary. I like to run my 900 at about 2800

 

[Biglizard1]

Arctic, i think he is still working on his 1K

 

[fishtank]

Oops, forgot I dont have a signature on this site.

Its a 2003 Mtn cat 900

 

[Idcatman1]

All the 800 and 900 carb mountain cats I have been around have a rich jetting condition up to about 1/4 throttle. The riding I do starts at about 5000 ft so I can't say if that gets enough better at lower elevations. If you clean up that rich condition it cures the bog or blubber that a lot of guys complain about and you can then engage the clutches at a lower rpm and still have plenty of holeshot. It also allows you to take off in deep snow without digging a hole and getting stuck from the get go. Also the clutches run cooler when boondocking and at trail speeds you are less likely to be running in the lean area that takes over just after 1/4 throttle. I use 3.5 throttle slides and 30 or 35 pilot jets and then do fine tuning with the air and fuel screws. I have not had to do any gearing changes to compensate for the low rpm clutch engagement.