'97 MXZ 670 and '99 Indy 340 Handling Questions

'97 MXZ 670 and '99 Indy 340 Handling Questions

Post by Pierr » Wed, 13 Dec 2000 05:58:15


Hey all,

My girlfriend and I had our first ride ever on our 'new' sleds yesterday. It
was a blast. But now, I've got some questions about setting these up
properly for good trail handling.

The last machine I rode was a '73 Nordic, so my knowledge of the more modern
machines' suspension adjustments is limited to say the least.

1. 97 MX-Z 670

I found it understeered quite a bit. A rider we met along the way told me it
was because I had "easy steer" skis on it and suggested I crank the front
pre-load up a couple notches. Is this the best way to make this model carve
the corners more precisely?

I also managed to bottom out the rear suspension. Again, I guess it's a case
of spring preload; can anyone suggest good settings for someone weighing
about 215 pounds?

(But hold on; if I crank up both the front and read preloads, won't that
negate any improvement in steering?)

2. 99 Indy 340

My girlfriend had a hard time keeping up with me on trails that seemed easy
with the MX-Z. We weren't going that fast (really); it wasn't a question of
horsepower. Sure enough, when we switched sleds to try each other's out, I
found the Indy to be considerably more challenging to ride. It felt like it
was bouncing around a lot, and it even felt tippy at times. I had figured
that such a light machine would have no trouble keeping a decent pace on a
tight trail.

When I was leading, riding it as hard as I could, I found my girlfriend
could keep up to me effortlessly with my MX-Z. I was breaking a sweat, but
she wasn't. I didn't have the throttle pinned, either.

Even though this is a very unscientific comparison, it leads me to believe
there's room for improvement with the Indy, too. What suspension adjustments
are available? I didn't see any way to adjust pre-load on the front springs,
at least. Does anyone know of good settings for a woman of average weight?

Any help is appreciated.

Thanks,

Pierre
8^{D>

 
 
 

'97 MXZ 670 and '99 Indy 340 Handling Questions

Post by Harris » Thu, 14 Dec 2000 13:19:39

Pierre:

For the MxZ 670, start with the suspension settings on the clutch guard.  Find
your weight and adjust the rear springs and center shock to the recommended
settings.

From there, turn up pre-load on the front springs (one click at a time) until
your handling is where you want it.  If you max out pre-load on the front
springs and it still isn't steering the way you want it, drop the center shock
pre-load one notch and then back off the front springs until you get what you
want.

215 lbs isn't that much, I'm 300+ and was quite happy with how my '98 MxZ
handled, and that was with 'Doo's PCS kit installed.

Good luck!

HML, Jr.
'01 Yellow Mxz 800 "Adrenaline" here, delivered 11/29/00!
PA Snowmobile Safety Instructor

 
 
 

'97 MXZ 670 and '99 Indy 340 Handling Questions

Post by Harris » Thu, 14 Dec 2000 13:28:07

And by the way, I think that sled has 'Doo's ACM on it (it couples rear to
front as I remember).  It's that cylindrical-shaped thingy at the rear of the
sled that has a nut on the end and points toward the front.  As I remember, if
you***the nut in,you get more weight transfer under acceleration (but lose
ski pressure).

What you really need is the Owner's Manual. Do you have it?

HML, Jr.
'01 Yellow Mxz 800 "Adrenaline" here, delivered 11/29/00!
PA Snowmobile Safety Instructor

 
 
 

'97 MXZ 670 and '99 Indy 340 Handling Questions

Post by Pierr » Fri, 15 Dec 2000 01:33:57

Thanks for the tips. Actually, I don't have the owner's manual; I bought it
used. Would you know where I can obtain one?
8^{D>
Quote:

> Organization: AOL http://SportToday.org/
> Newsgroups: rec.sport.snowmobiles
> Date: 13 Dec 2000 04:28:07 GMT
> Subject: Re: '97 MXZ 670 and '99 Indy 340 Handling Questions

> And by the way, I think that sled has 'Doo's ACM on it (it couples rear to
> front as I remember).  It's that cylindrical-shaped thingy at the rear of the
> sled that has a nut on the end and points toward the front.  As I remember, if
> you***the nut in,you get more weight transfer under acceleration (but lose
> ski pressure).

> What you really need is the Owner's Manual. Do you have it?

> HML, Jr.
> '01 Yellow Mxz 800 "Adrenaline" here, delivered 11/29/00!
> PA Snowmobile Safety Instructor

 
 
 

'97 MXZ 670 and '99 Indy 340 Handling Questions

Post by Cory Ricketts » Fri, 15 Dec 2000 07:05:53

Hey Pierre The 340 fan is geared considereably low so has very little power, It
seems to respond well on hard pack though.

~~~~Cory R~~~~~~
POG#558
Holland, NY