Yes. I topped off the tank when i got to the cut. My one liter bottle in my toolbox was half full and it took almost all of what was left. Seemed to have burned through that tank fast even though i shut it down to move and mark wood. I actually dumped some gas from the 261 into the 500 plus what was left in the bottle. Finished the trunk and started noodling and ran out again. Had to leave anyhow. Wont get back there until Thursday the earliest.
I've only run one tank through mine however it already appears to be a gas guzzler. Not complaining considering the 79cc's but it was noticeable.
I don’t know anything about emissions from burning fuel, but it seems like more burnt fuel = higher emissions. Does injected fuel burn cleaner? The new cm models use noticeably less fuel than traditional carb saws. Manufacturers have to meet epa standards. How does the 500 meet emissions requirements?
The fuel injection in the 500i is meant to be an extremely lightweight system without very many sensors. In order to see a difference in efficiency, direct injection would involve another pump injecting oil onto the bearings as well as a fuel injector up by the spark plug. It would also probably require a battery on board. It would get heavy quickly. The biggest thing with the injector is that there are no diaphragms to get stiff over time like they do in a carburetor. Also, the main reason for the efficiency of many of the CM models (200, 241, 261, 362, 400, 462) is that they are a strato charged motor, which purges out the spent exhaust with fresh air, rather than purging exhaust with fresh mixed fuel like a traditional 2 stroke
I don’t believe the 500 would meet any sort of current EPA restrictions by itself. I think it’s like a carbon credits sort of thing, where they need to sell X number of overly efficient models in order to be able to sell X number of the larger less efficient work horses
