Valves on both ends? Yes, sometimes. Dear ATVC: Appreciated your article on the two-stroke power valve but have to laugh when you say the to-stroke engine is designed around using no valves. If it has a reed valve on the intake side and a power valve on the exhaust side, I’d say it is a […] More »

Didn’t need valves but had some anyway. Valves are a fact of like in the four-stroke engine. Intake valves open which allow fuel to enter the combustion chamber, a spark plugs ignites the fuel/ air mix, sending the piston sailing down the cylinder and then exhaust valves open to allow the spent gaseous byproducts of […] More »

The Pioneer 1000 returns for 2024. Honda has announced the return of its multipurpose side-by-sides for the 2024 model year. The Pioneer lineup includes Pioneer 1000, Pioneer 1000-5, and Pioneer 1000-6 Deluxe Crew. These models will feature Atera Camo, a pattern designed by TrueTimber, and will be available in other colors as well. These side-by-sides […] More »

It’s been a minute since we’ve seen a brand new factory 2-stroke. For most of us, the days of the 2-stroke equipped ATV have waved goodbye long ago. Yamaha’s legendary Banshee 350 ceased US distribution back in 2006 and the last production 2-sroke available, the Spanish made GasGas Wild HP 300, suffered a similar fate […] More »

The medium size 700 Pioneer returns to Honda’s line for 2024. For customers who appreciate a medium ground that considers load-carrying capacity while also appreciating the ability to maneuver in technical quarters, Honda’s middleweight Pioneer 700 is the ideal solution. Versatile and capable, this rec/utility side-by-side is eager to roll up its sleeves for tough […] More »

2-stroke plugs tell a story. Dear ATVC: I recently purchased an ‘05 E-ton 90 2 stroke, oil injected quad for my daughter. I noticed the oil light stays illuminated while running. The previous owner states it’s always been that way and not to worry about it. My daughter rode it for about 2 hours total, […] More »

Made in Taiwan once upon a time. Dear ATVC: I am trying to find out information regarding a quad I purchased. The sticker says it’s a BSI 100cc (2-stroke, water cooled ATV). I am trying to find spares like head/piston but unable to find any information on the quad. Any assistance would be greatly appreciated. […] More »