how can i make my 377 sicker

[kx125kid]

i need some custom modification ideas for my 1984 ski doo safari 377 to make it quicker and faster. mostly things that wont cost much cuz this sled is a beeter. i can do some milling at my high school shop class (i cant bore it tho) but nothing too major. help me out and give me some ideas.

[flotek]

porting /polishing

[Smokin'Gun]

Sleds like that arent worth doing anything to because you can port and polish it and mill the head and its still going to be slow. Its a safari which is basically the luxury snowmobile of the day so the clutches are tuned for slow speeds and lugging weight up hills and its geared to do that. The chain and chaincase isnt designed to take more power. Its better to get a newer sled like a 583 or something.

[tecateboy]

well if you want to do some things after the porting do some work with the clutches. put different springs and weights in it to get it to work more like you want it...either give it more torque down low or get it so it will rev out better on top. if you get split weights (think thats what they are called) iv heard they give you torque down low and top end speed, thats what i have to work with on my 340&440 invaders for the vintage drags since im running the stock class.

[kx125kid]

ya thats one of my things that i wann do. grass drags. i think it would do pretty well as it is. concidering it go faster then my freinds older 500.

[tecateboy]

yea what i do for my 340 and new(to me it is) 440 invaders is i drag them in the vintage classes. this 340 really was a fast one when we had the clutches set up right, in top speed that 340 would walk all over the indy 500 that i have. down a road i was following my cousin, he had my 340 and i had the indy and he just left me. im gonna love what kind of power that 440 is gonna have as soon as i get new pistons into it. i dont know what kawi did to their snowmobile motors, but they packed alot of power into them. but my brother tuned the clutches for a more trail friendly ride, now its got a better take off but not as much top end. last year i got beat by another 340 invader and a 340 polaris, but this year im back with a better track and probility some clutching changes, last year all i did was spin all the way down the strip where the other people hooked up after only about 40-50 feet. i should do better this year with the new track.

[kx125kid]

where do i get into vintage drags. cuz this sled is the fastest sled ive ever driven under 440. is there like a website for them in massachusettes or around southern NH.

[tecateboy]

just ask snowmobile clubs and they are usally publicized in the paper too. but if thats the fastest snowmobile under 440cc that you have ever driven...i think you need to drive a kawi 340 invader.

[yz_racing_77]

i have an 89 safari 377 i port and polished it threw a bigger carb, changed the clutch setup, and it is like a tottal night day difference and i just did it for jokes i didn't think it would make a big difference but it did, deffinatly do some clutch work

[kx125kid]

how do i do the clutch work. i like to do lots of that kind of stuff but ive never really worked on the clutch?