Dear Ralph: What is the difference between Mikuni VM38SS and VM38AL carbs ? I thought that the XLT Special and XC 600 were using the same engine, but the SP specs say it has SS carbs, and the XC says AL – what gives ? Nothing more than an... Read more

Single Pipe Doubts

"Dear Ralph" October 28, 1997 0
Dear Ralph: I’ve heard somebody say that it is nearly impossible to get over 110 horsepower out of an engine with a single pipe. If this is the case, then how are we to believe that the MX Z 670 and SX 700 produce around 115 hp ? It’s... Read more

Backfire

"Dear Ralph" October 28, 1997 0
Dear Ralph: My Indy Classic seems to have a problem with the throttle override kicking in at low rpms which causes the engine to backfire. Is there any way to unhook or disconnect this system ? Under no circumstances (other than in an emergency to make it home) should... Read more

Longer Break In ?

"Dear Ralph" October 28, 1997 0
Dear Ralph: I’ve heard that these new “Nicasil” cylinder liners have a longer break-in period than do the cast liners. How many miles should I wait before I change jets and expect full power from the engine? It isn’t so much breaking in the cylinders as it is to... Read more

Idle Too High

"Dear Ralph" October 28, 1997 0
Dear Ralph: Why would my ’96 XLT have an unusually high idle speed? A high idle is usually caused by a lean condition. Most people remedy this by turning in the air screws a bit (1/4 turn more) which enriches the idle mixture, but this varies from machine to... Read more
Dear Ralph: Some of the lugs on my inch and a quarter (high) bar track are starting to tear. Is there any way to fix this ? Can I apply a patch (like on a tire) to the damaged area ? The only possible fix we have heard of... Read more

MX Z Adjustments

"Dear Ralph" December 27, 1996 0
Dear Ralph: I have a ’96 583 MX Z. It rides nice but it is quite tippy in the corners, especially if you have the front springs set heavy. I noticed that the swing arms have two mounting holes for the lower radius rods, the upper being the stock... Read more

Backfire

"Dear Ralph" December 27, 1996 0
Dear Ralph: My Indy Classic seems to have a problem with the throttle override kicking in at low rpms which causes the engine to backfire. Is there any way to unhook or disconnect this system ? Neil Youngren Neil: Under no circumstances (other than in an emergency to make... Read more
Dear Ralph: I stopped by both of my Ski-Doo dealers to buy a replacement spring for my secondary clutch. As it turns out neither of them stock these items. I was informed that they never go bad so why change them. I have been accustomed to changing my clutch... Read more
Dear Ralph: I have a 1992 Indy 500 and I recently bought a PSI pipe. When I had the stock pipe in the needles were dropped one setting in the carbs to get rid of a nasty hesitation at half throttle. If I leave it where it is now... Read more