Trailfire lost its zip!

General topics related to John Deere Snowmobiles
Post Reply
deereoftheyear
Posts: 158
Joined: Tue Jan 06, 2009 1:00 am
Location: Wisconsin

Trailfire lost its zip!

Post by deereoftheyear »

Took a ride 425 mile ride this weekend and after it was all said and done it seemed like my 83 trailfire doesn't have the top speed it use to. Not just this weekend but over the course of this year. It use to always go AT LEAST 100km/hr but it seem like it's only doing about 90 today (Snow was a little wet too). Engine running great and i lube the primary clutch with chain wax for motorcycles so things don't wear out. With that being said I've also almost put on 5000 miles the last 2 1/2 years so maybe the cluthes need work anyways? Engine runs about 5900-6100 RPMs cruising at high speeds and maybe spikes to 6500 when i pin it off the line. Any recommendations to get my top speed back? Thanks Luke.
User avatar
427cobra
Posts: 2474
Joined: Thu Jan 26, 2006 1:00 am
Real Name: Eric
Location: Metamora IL

Re: Trailfire lost its zip!

Post by 427cobra »

Maybe an engine re ring is needed? Is your compression still good?
Eric A.

"Life is tough, but it's tougher when you're stupid" - John Wayne
deereoftheyear
Posts: 158
Joined: Tue Jan 06, 2009 1:00 am
Location: Wisconsin

Re: Trailfire lost its zip!

Post by deereoftheyear »

Yeah I checked it, 135 on each.
deerefanatic
Posts: 147
Joined: Thu Aug 11, 2005 12:00 am
Location: Ladysmith, WI
Contact:

Re: Trailfire lost its zip!

Post by deerefanatic »

If it was clutching, I'd think it'd be screamin but not moving..... Or is this what you're trying to tell us it's doing?
User avatar
69camaro
Posts: 1427
Joined: Sat Oct 22, 2005 12:00 am
Real Name: Duane Gjerseth
Location: Augusta, Wisconsin (Eau Claire area)

Re: Trailfire lost its zip!

Post by 69camaro »

425 miles this weekend. That is fantastic Luke. Did you get the Liquifire skid, track, and drivers installed? Duane
75-340/s
76-340 Liquifire
77-440 Liquifire Custom
78-440 Liquifire
84-Liquifire
84-Sportfire
84-Sprintfire
84-Snowfire
78-Polaris TXL
82-Indy 500
91-XC 400
91-Indy 500 Special
94-Indy 440 Special
95-XCR 440 Special
96-XCR 440 Special
99-XC 600
04-XC 700
81-Kawasaki 440 Invader
User avatar
427cobra
Posts: 2474
Joined: Thu Jan 26, 2006 1:00 am
Real Name: Eric
Location: Metamora IL

Re: Trailfire lost its zip!

Post by 427cobra »

Try putting the secondary spring in the next hole to increase the tension....Maybe thats getting worn.
Eric A.

"Life is tough, but it's tougher when you're stupid" - John Wayne
deereoftheyear
Posts: 158
Joined: Tue Jan 06, 2009 1:00 am
Location: Wisconsin

Re: Trailfire lost its zip!

Post by deereoftheyear »

Deerefanatic, When I'm riding (wide open throttle/close to) it holds really steady at aprox. 6000 rpms which I thought was about right, maybe not? It seems to fly off the line and as it gets going faster, it seems like it just can't quite get up there like it should. I especially noticed it this weekend coming home, but it was warmer and the trails where a little wet. Luke
deereoftheyear
Posts: 158
Joined: Tue Jan 06, 2009 1:00 am
Location: Wisconsin

Re: Trailfire lost its zip!

Post by deereoftheyear »

Hey Duane,

At end of the season I was going to swap the whole works out. I've got the suspension all set up and repainted and ready to go. I was going to break it down in the middle of the season but snowmobiling up north has been awesome this year for me. Maybe sooner if I can't get my top speed dilemma worked out. Wish I could have made it to Waconia this year but was too busy at work unfortunately at the end of Janurary. Luke.
deereoftheyear
Posts: 158
Joined: Tue Jan 06, 2009 1:00 am
Location: Wisconsin

Re: Trailfire lost its zip!

Post by deereoftheyear »

427cobra, the secondary spring is more responsible for higher speed performance? Is that a fairly common occurrence and should I start looking for a new one? If I do this and it WASN'T necessary, what will it perform like. Thanks Luke
Post Reply