Does sprung versus unspring matter? Sure does. Dear ATVC: Last week’s question and answer about centralization of mass was interesting but you never mentioned that another reason engine location is such a big deal is because it’s sprung weight. Can you explain this concept a bit? You’re absolutely right and sure can. So we typically […] More »

The last quad standing also happened to be the recipient of some impressive mass centralization. Dear ATVC: I remember a few years back now all the companies were talking about “centralization of mass”. Then it sort of just disappeared. What happened? Was it just a fad? Actually, no. You’re right in that you don’t hear […] More »

Polaris 500 EFI diagnostic codes tell the tale. Dear ATVC: I’ve been fighting my 2007 Polaris 500 EFI always stalling at idle. You can hold the throttle and it will keep running. No, it’s not the safety adjustment in the cable. I’ve changed and tested so many parts I’m walking in circles. No matter what […] More »

This stuff does work but is it always a good idea? Dear ATVC: I have always used Loctite when putting bolts on my ATV after maintenance but have been told it’s a bad idea to do so. I run the blue stuff which is designed to be removable with standard tools so what’s the harm? […] More »

Carbs have been all but replaced by fuel injection. But is there a downside? Dear ATVC: Weird question but hear me out. I have a 2023 fuel injected 500 that I know inside and out. Recently I had a chance to ride a buddy’s carbureted 2006 version of the same quad and it felt…faster! I […] More »

This machine existed for three years unchanged. Dear ATVC: Hello, I am new to the ATV scene. I have a 2005 Arctic Cat 500 4×4 with a blown engine (ran out of oil). Wondering if anyone knows what model years will fit the 2005 500 non-EFI chassis. Thank you in advance. You can plug & […] More »

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 »