Which HyFax

"Dear Ralph" November 28, 1997 0
Dear Ralph, If I wanted to reduce slide friction in all snow conditions, should I get Teflon or graphite sliders for my sled (1997 MX Z-440 LC)? 1. What’s the difference between Teflon or graphite? 2. Will one last longer than the other? 3. Are they really worth the... Read more
Dear Ralph, I ‘m having trouble setting up the rear suspension on my ’97 ZR 580. The problem I’m having is bottoming when coming off jumps and at the bottom of drop offs and hills. It is fine on small whoops but terrible otherwise. I have tried all preload... Read more
Dear Ralph, I recently picked up my new Yamaha 600 XTC. I was really impressed However, one of the big things advertised about the sled was the “loads of pre-load” on the suspension. The problem is; there is no wrench in the tool kit to accomplish the pre-load adjustments.... Read more

Blowing Head Gaskets

"Dear Ralph" November 28, 1997 0
Dear Ralph, I was reading a “Dear Ralph” question about blowing head gaskets on an XLT. I had the same problem with my 95 XLT 600. The problem is a separation between the cylinder liner and the block casting on the exhaust sides of the mag and pto cylinders.... Read more
Dear Ralph, A few of us noticed that Polaris has upgraded (increased the size) of the crank bearing on the monoblock XLT engine and has added an oiling line to that bearing. One of our group is bummed that his XLT Limited SP doesn’t have the “XC Motor” which... Read more
Dear Ralph, Can any more power be had from the ’97 ZR-440? Is it only a different spread of power that can be had from various pipes, etc. or can we get more power? Jeff Piccolo Plymouth, CT. Snowmobiling – The only winter progression for a bored & battered... Read more

How Much For $500?

"Dear Ralph" November 28, 1997 0
Dear Ralph, I have a stock 1994 Yamaha V-Max 600 and about $500-$600 dollars to spend. What do you recommend for the best performance gains for this kind of money? Brian M. Polka You need to define “performance” before we can make recommendations. Do you want 1000 ft acceleration,... Read more

Poor Education

"Dear Ralph" November 28, 1997 0
Dear Ralph, Your Oct/Nov ’96 issue illustrates one of the major problems in educating snowmobilers: CONFLICTING INFORMATION! On pages 66 & 67 Jim Shepard and Bill Westhoff tell us that a more aggressive (greater angle) secondary clutch cam will increase the squeeze on the belt. This is contrary to... Read more

Tinker With the EFI?

"Dear Ralph" November 28, 1997 0
Dear Ralph I own a ’97 EXT 580 EFI and was wondering if you can give me some tips on what I can do to modify my sled to get more power. Is it worth playing around with the EFI or should I just buy a bigger sled? Terry... Read more

Sticky Solutions

"Dear Ralph" October 28, 1997 0
Dear Ralph: What is your recommended procedure for removing stickers from snowmobile hoods without damaging the hood? Is there any quick and easy method? Whatever you do, keep razor sharp blades and such away from your sled. The best method of removing plastic and vinyl decals is by using... Read more