99 formula z 670. - Snowmobile Forum: Your #1 Snowmobile Forum

SSnthe10s · 08-07-2006, 05:41 PM

what kinda power did these have. how were they as a all arounf sled. My GF bought one last week for 1800. just wanna know a lil about it. thanks

BRPforlife · 08-07-2006, 06:35 PM

I've got a 99' mxz 670, great power and a bulletproof motor. It's quite the hog on gas but other than that I don't have a single complaint about the sled. She'll be happy with it. Keep it maintained and that motor will go for ever!

**smallengineguy** · 08-07-2006, 10:06 PM

Yup, 670's are absolutely bulletproof. You'll have a ball with it!

SSnthe10s · 08-07-2006, 10:54 PM

thats what i hear about them 670s. well good to know thanks guys.

JEFFH · 08-12-2006, 10:30 PM

Great sled, with a 1.25 finger track that sled will go through and up anything gas milage is about the same as my 440.

98mm600 · 08-12-2006, 10:59 PM

Rotary valve engines are the best thing since sliced bread.

Doo should have continued with them on the REV platform!

SSnthe10s · 08-12-2006, 11:23 PM

Quote:

Originally Posted by 98mm600

Rotary valve engines are the best thing since sliced bread.

Doo should have continued with them on the REV platform!

well since she just got it i think i should give it a tune up. how do i go about cleaning the valves.

**smallengineguy** · 08-13-2006, 07:19 AM

Take off the plastic covers, then remove the 2 allenhead bolts that hold the RAVE case to the engine cylinder. Then you can slide the whole assembly out and clean the valves. They only go in the engine one way, so remember how they came out. The tip of the valve is beveled. Also check the rubber bellows for cracks or tears and replace it if necessary. You'll probably have to buy the gasket that goes between the RAVE case and the cylinder.

SSnthe10s · 08-13-2006, 04:28 PM

ok cool thanks seg. about how much are the gaskets. and what else should i do to this b4 the season. i was thinkin change the chain case lube and new plugs of course. what else?

JEFFH · 08-13-2006, 05:04 PM

What rear suspention ARM or sc10 II? ARM is best for trail rides, super cushy ride.

SSnthe10s · 08-13-2006, 08:18 PM

Quote:

Originally Posted by JEFFH

What rear suspention ARM or sc10 II? ARM is best for trail rides, super cushy ride.

im guessing its ARM. cuz it has the big arms under the tunnel. wouldnt it say sc10 on it?

**smallengineguy** · 08-14-2006, 06:39 AM

The ARM suspension has 2 big shocks side by side in the back. I'd grease the entire suspension syystem and check all theidlers for good bearings, etc. Make sure the belt is OK and change out the chaincase oil for Klotz synthetic. Then you'll be ready to go!

SSnthe10s · 08-14-2006, 04:44 PM

Quote:

Originally Posted by smallengineguy

The ARM suspension has 2 big shocks side by side in the back. I'd grease the entire suspension syystem and check all theidlers for good bearings, etc. Make sure the belt is OK and change out the chaincase oil for Klotz synthetic. Then you'll be ready to go!

yea i was either gunan do klotz or ams oil chain lube. i have ams oil in my indy.

PolarisINDY500 · 08-14-2006, 05:58 PM

by the looks of it, your old lady might have a faster sled than you

SSnthe10s · 08-14-2006, 06:06 PM

Quote:

Originally Posted by PolarisINDY500

by the looks of it, your old lady might have a faster sled than you

yea thast what i was thinking. But im buying a new truck b4 winter. so a new sled waits till next season.

BRPforlife · 08-14-2006, 07:38 PM

Quote:

Originally Posted by 98mm600

Rotary valve engines are the best thing since sliced bread.

Doo should have continued with them on the REV platform!

Amen brotha! Reeds are great but I love the rotary!

Cleaning the Rave's is easy, I rode around for 2 months before I realised I had a broken rave valve. They say "TOP" right on them so it's pretty hard to put them in upside down!

PolarisINDY500 · 08-14-2006, 09:16 PM

Quote:

Originally Posted by SSnthe10s

yea thast what i was thinking. But im buying a new truck b4 winter. so a new sled waits till next season.

so thats why you were asking how much a month i pay for my truck

what kind of truck are you looking to get??

SSnthe10s · 08-15-2006, 09:44 PM

Quote:

Originally Posted by PolarisINDY500

so thats why you were asking how much a month i pay for my truck

what kind of truck are you looking to get??

well i was gunna look in to buying a newer truck this year. But my buddy just brought home a rust free tennesee truck 94' Black f150 4x4 ex.cab short bed. 5.0L. fresh trans and what not. mid hundred thousand miles. i trust who i might be buying it from and said it was maintaind well. And he wants 2500 for it. its very tempting and im even a chevy guy.

F_ast · 08-16-2006, 12:59 PM

my buddy had the 98 670. The arm/ arc suspensions was just about as soft as it comes and smoothes thrails out nice. A little heavy though. But runs the trails good.

F_ast · 08-16-2006, 01:04 PM

Quote:

Originally Posted by SSnthe10s

im guessing its ARM. cuz it has the big arms under the tunnel. wouldnt it say sc10 on it?

Yah, actually ski-doo bought a license for a suspension company called extreme to try out their rear skid on one of there production sled. And it really is comfy. Girls like soft.