Big & Aggressive

"Dear Ralph" September 28, 1998 0
Dear Ralph: I have a ’98 ZL 500 that runs great. It’s fast for a 500, and can really move out of the corners with good weight transfer to the track. I like the suspension, but I have one problem. I weigh about 230 pounds and I’m a fairly... Read more

Getting Old

"Dear Ralph" September 28, 1998 0
Dear Ralph: My question is about horsepower! I am one of many who have been up to the big bores and are heading back down. I came to the realization last season that I am getting old. I’ve run my ’88 650 Wildcat for many years and loved it.... Read more

Jetting Changes ?

"Dear Ralph" September 28, 1998 0
Dear Ralph: I have a 1997 Polaris Indy XC 700. I had the sled clutched before I picked it up. When I ran it against my friend’s Ultra I wasn’t very impressed. Next, I replaced the stock silencer with an aftermarket silencer, still using the stock pipe. Since the... Read more

Nothing New

"Dear Ralph" September 28, 1998 0
Dear Ralph: Last year I purchased a new Yamaha V-Max 600 XTC with the factory installed electric start and reverse. My question concerns the reverse gear. I find that sometimes when I try to engage the reverse gear, it will not go into gear. This is with the engine... Read more

ATF?

"Dear Ralph" September 28, 1998 0
Dear Ralph: What do you think of using Automatic Transmission Fluid in the chaincase? Art Rodriguez Minneapolis, MN Why would you want to use ATF in the chaincase? I’m assuming you think ATF will provide enough lubrication for the chaincase with much less resistance, which will translate into less... Read more

Octane Boosters?

"Dear Ralph" September 28, 1998 0
Dear Ralph: I am slowly learning about the potential problems with “inadequate” gasoline, i.e. low octane, moisture, etc. I own a 1997 Ultra with a Legend Trail Dominator Kit installed. Are there any disadvantages of using octane boosters when I fill up with 91 octane gas? Are moisture absorbers... Read more

20% Less At Altitude!

"Dear Ralph" September 28, 1998 0
Dear Ralph: I believe there is one important factor affecting compression that you neglected to mention in your Winter Issue “Dear Ralph” column: ALTITUDE. Here in Idaho Falls, (4600 ft above sea level) we get compression numbers approximately 20% less than the sea level numbers published in the shop... Read more

XLT Spring In A 500?

"Dear Ralph" September 28, 1998 0
Dear Ralph: Just read your column about a problem a guy was having with a secondary clutch springs that was too stiff for the sled it was installed on. It was very informative and solved a problem that I have been having with my wife’s sled (Indy 440) for... Read more

VForce Carb Changes?

"Dear Ralph" September 28, 1998 0
Dear Ralph: I have purchased a set of Delta VForce Reeds for a stock ’96 ZRT 600. I have had all of the updates performed and I am wondering what carburetor changes are needed so that I have the same fuel-air mixture that the sled originally came with. Len... Read more

Pops & Backfires

"Dear Ralph" September 28, 1998 0
Dear Ralph: My sled has one cylinder that is laying down under mid-range operation. It doesn’t completely fall off to one cylinder, but it kind of pops and backfires. The situation will occasionally resolve itself after about an hour of running, or putting in fresh plugs normally cures it.... Read more