Gearing and clutching

[trep_power]

Hello everyone !

I have my sled since 2 years and I would like to upgrade it a 'bit ! It's a vmax 700 xtc deluxe (red heads) with the reverse
I would like to change the cluctching and the gearing.
I go on trails and I go in the powder maybe 50/50.
What is the best clutching and gearing setup I could use ?
All this for the low price possible
I know there is some setup on the TY tech http://www.totallyamaha.com/snowmobiles/aaTECH/tuning page.htm
but I don't know wich one to take for the use I do (trail/backcountry)

Thanks !

 

[A couple of bucks]

Do the 97-99 SX700 trail. In place of the 22/40 gearing specified, drop to 20/40 and replace the chain. How's your track look. That would your next focus if it's sub-par.

 

[BornYamaha]

Aren't all reverse sleds 39 on bottom.? Are 4G a available? Please correct me if I am wrong. I am not near a pic now to check it out.

 

[BornYamaha]

The 20 tooth upper gear is extremely hard to find new. It is out of production. I went through a major search a year ago and finally got one shipped from a dealer in Colorado. I am il Illinois. If you need one and nobody on here has one have your dealer do a search. There may be some left somewhere.

 

[trep_power]

And if I want than the ski lift a bit when I go in backcountry what could I do ? and for the information my sled had a 136'' ski-doo suspension with 1,25'' track by 16 inches.

 

[A couple of bucks]

What year is it and does it have the standard trail skis on it.

 

[FJViper]

Check Goodwin Performance for any gearing changes.

 

[trep_power]

It is a 1998 Vmax and the skis are some ski-doos flex... here is a picture of it ! I would like thans the front be higher too but it is an other project !

 

[mrviper700]

the top gear isnt any differnt in a sled with reverse so you can just buy a 20 tooth standard 13 wide gear and it will go right on. Its only the bottom gear which is differnt.

 

[trep_power]

For the jetting, it says to put the main to 142.5 but when I look in the spec it is higher... is it normal than the new jetting is smaller ?

 

[A couple of bucks]

Jetting from the factory was VERY safe and on the fat side. Taking it down to the recommended jetting will get it closer to an ideal AFR.

 

[A couple of bucks]

I would like thans the front be higher too but it is an other project !

Viper shocks are just the ticket.

 

[wheeliemaster92]

For the jetting, it says to put the main to 142.5 but when I look in the spec it is higher... is it normal than the new jetting is smaller ?

thats what i run in my stock 97 sx 700 are 142.5 mains they are right theyre a safe jetting that are on the richer side rather than leaning it our bad and melting a cylinder down and yes smaller jetting just means leaner which means hotter running and more horsepower.