The big DS got several changes throughout its life. The frame wasn’t one of them. Dear ATVC: Would it be possible to put my 05 DS650 motor into a 2000 frame? The Bombardier (Can-Am) DS650 was produced from 2000 -2007 and in that time received a whole plethora of improvements and trim packages along the […] More »

The same but different. Dear ATVC: I have the chance to pick up a very well maintained custom built 250R race quad. I’ve never ridden a 2-stroke but am thinking about using it for what it was built to do – race some local enduro. Coming from much bigger bore 4-strokes, how steep will the […] More »

The hard part is definitely behind you. Dear ATVC: Looking for the proper gaps to adjust the intake and exhaust valves please and thank you. After changing the carb, coil, plug, stator, voltage regulator, air filter and checked for leaks. The quad starts and runs smoothly till you give it gas, then it runs rough. […] More »

They call this pipe Aluminum Series – but it’s made of stainless. Dear ATVC: I am getting back into the sport after racing a 2-stroke back in the 90s. I notice all performance exhaust systems today are steel but I know I remember full aluminum systems back in the day. Did I make this up? […] More »

Raindrops keep falling in my tank. Dear ATVC: I was filling my tank on a rainy afternoon and of course, some rain drops got into the fuel while I was doing so. This got me wondering if that’s enough water to cause issues? If not, how much water becomes a concern? This is a great […] More »

We almost have it. Dear ATVC: I picked up a children’s quad yesterday which runs but needs some work. It has a BMX seat on it and I was able to locate a VIN which is L5NATMGT47T076943. It appears to be a Tao Tao but I cannot tell what CC or model. I spoke with […] More »

There aren’t many, but they do exist. Dear ATVC: Hi all. I need a rear brake drum for this 1999 Bear Tracker 250. There doesnt appear to be any available – ZIp, Zero, Nada. Previous owner(s) were brutal to this thing. They hacked up the wiring, lost the carb and exhaust system, and when the […] More »