Originally Posted By: kballowe
Originally Posted By: ZGRider
Originally Posted By: kballowe
I got a weed eater that's a four-stroke. Funny thing though - ya gotta mix oil with the gas.
Shindawa.
I got a lawnmower that's a 4-stroke, and it doesn't mix gas and oil.
What's your point?
Just had never seen a four stroke that required mixing oil in the same ratio that one would typically find in a two-stroke. e.g. it's a four-stroke without a crankcase oil sump. Bought this thing a couple years ago. Got it home and read the literature. Hmmmmmmm
- 34cc displacement, 1.4 hp (1.0kW)
- C4 Technology® high torque 4-stroke engine features all position operation. No dip stick! Uses 50:1 mixed fuel
- Incredible torque. Quick throttle response
The type of engine your talking about is usually referred to as a 4-mix. Meaning four strokes/mixed fuel. The engine seems to be more like a hybrid of the two stroke and four stroke engines. It's supposed to be quieter and produce less emissions than a two stroke.
By the way E-Tec outboard engines are EPA approved.
Here's a link to show how the 4-mix engine works:
http://www.stihl.com/isapi/default.asp?c...mix/default.htm
Personally, I'm not particularly impressed with it. A two cycle engine with a catalytic converter will be simpler, more powerful and considering the size of the engines, not much of an environmental threat.