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 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 »