Tag: stroke

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 »

A Honda 250R only by name. Dear ATVC: I read with great interest your look back at the Kawasaki Tecates and wondered about something. See, I was pretty young when the 2-strokes disappeared but remember clearly my local track’s gate filled with Honda 250Rs and nothing else for years (all the way until the race […] More »

Probably not the problem. Dear ATVC: I just picked up a 2002 Suzuki LT80 for my son. I have noticed the carb choke plunger only moves about 2mm up and down when pulled or pushed. It seems that the plunger should move more like an inch but I haven’t been able to find an answer […] More »

Sound of a bygone era. Earlier in the week, we talked about the differences between the 2 and 4-stroke internal combustion engine. These days the 4-stroke rules the world, but the topic got us thinking back to a time when the unmistakable bark of the 2-stroke and smell of premix filled the air. To that […] More »

Stroking along. Dear ATVC: This is probably a stupid question but I’m taking Intro to Mechanics in school and all we learn about are 4 stroke engines. I know 2 strokes came first. What determines how many strokes an engine can have? Do they always have to be even numbers? Well for starters, that is […] More »

The science behind the process. When it comes to a four-stroke engine, there is a very simple process taking place every single time your piston rockets up and down its cylinder bore – your intake and exhaust valves open and close once per every two crank revolutions. That means your piston goes up twice and […] More »