zdw0889

I got a 96 Polaris ultra 680 sp want to do some small upgrades for a little more power. Already ordered studs any thing else?

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96 polaris ultra sp 680 dg can cobra windshield, 89 el tigre ext 530, 98 zr 600 efi, 80 yamaha exciter 440 l/c, 96 cougar 550.

BC_Dan

Best bang for the bucks is to make sure the clutching is spot on. A lot of performance is slowly lost as the belt and clutch components wear. You don't notice the loss over time, but when you get things back to spec, it's often like a new sled. Adding a clutch trail kit can also give you a more aggressive ride, as most stock settings are a compromise between top end and acceleration.

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2007 Dragon RMK 700 155", 2008 RMK 600 155", 2006 RMK 600 144", 95 Prowler 550 2-up, 1990 Indy 650, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php

zdw0889

Ok who makes a good clutch kit for this sled.

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96 polaris ultra sp 680 dg can cobra windshield, 89 el tigre ext 530, 98 zr 600 efi, 80 yamaha exciter 440 l/c, 96 cougar 550.

BC_Dan

Erlandson makes some pretty efficient kits that work well. I have one in my 650, it made a lot of difference in how aggressive the sled shifted.

EPI Performance ATV and Snowmobile Clutch Kits: - Snowmobile Shop

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2007 Dragon RMK 700 155", 2008 RMK 600 155", 2006 RMK 600 144", 95 Prowler 550 2-up, 1990 Indy 650, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php

kccats

Goodwin Reformance (847) 872-4001. Greg can hook you up.
Have you started with a compression test at wide open throtle? You should have about 130-135#!

zdw0889

Yea but not full throttle and had 120 in two cylinders and 119 in the other

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96 polaris ultra sp 680 dg can cobra windshield, 89 el tigre ext 530, 98 zr 600 efi, 80 yamaha exciter 440 l/c, 96 cougar 550.

zdw0889

Is a spi a good clutch kit for this sled

Sent from my VS840 4G using Snowmobile.com App

__________________
96 polaris ultra sp 680 dg can cobra windshield, 89 el tigre ext 530, 98 zr 600 efi, 80 yamaha exciter 440 l/c, 96 cougar 550.

kccats

I perfer Greg he can give you the personal touch and with upgrades he can then mod the kit to fine tune for what you have!
Go back and redo the compression test @WOT!