Re: Techniques for 2-cycle engine tools
The only thing I've started doing is adding Marvel's Mystery Oil to both my fresh gas and 2-cycle gas. It started several months ago when a friend was having hard start issues with her lawn mower and wood chipper. The chipper, in fact, has needed a new diaphragm in the carburetor every year for the past few years.
I happened to be watching a video on YouTube of a guy servicing a long neglected mower, which is where I got the idea of using MMO. I decided that it was a cheap enough investment to see if it worked. My friend's lawn mower started running smoother and starting easier with each time it was started, which is many time over the course of mowing her very large lawn. The chipper has seen a similar start/run improvement. I've started using MMO in my own fuels as well and have been noticing easier starts with everything.
MMO is also rated to replace a portion of the crankcase oil, which is supposed to help keep things clean and lubed in the bottom end of the engine as well.
As for mixing 2-stroke oil, I purchase the 2.5 ounce mix and add it to 1 gallon of fuel for the proper mixing ratio (as per label ) This is easiest for me, since I don't use large quantities of this type of fuel. What I would recommend for you is to purchase a second fuel can, of 1 gallon capacity, and mark it specifically for your 2-stroke engines. When you purchase fresh fuel, only purchase what you can use in a short period of time.
I've never had a problem with "old" gas, and most lawn equipment doesn't care either. If I know the gas is particularly old or dirty, I will drain the tank and fill with fresh, but if there have been no run or starting issues, then use the old gas up, or add a little fresh fuel to it. I don't use fuel stabilizers, I'm more of the opinion that things should be run regularly, rather than "stored".
Here's the thing, if you keep liquid fuel in your equipment, the seals and diaphragms won't dry out and get hard. The most that is going to happen is some of the fuel volatility will dissipate, which is why you just add a little fresh fuel to the tank and run the engine. The next thing is that you should run engines frequently, I usually try for about once per month. You want to start and run the equipment as it would be under normal circumstances. You want to bring it to full operating temperature and put a load on it if possible (particularly important with generators ).
So, to sum up, I have two fuel cans, one for fresh fuel, one for mixed fuel. I do not use fuel stabilizer, it just isn't necessary. You do want to carefully measure you 2-stroke oil and fuel quantity to maintain the optimal ratio for your equipment. I personally only use Stihl or Echo oils, and everything runs on the same 50:1 mix. Stick with a good quality oil, you'll have better performance with your equipment. Lastly, I am also using MMO in everything, so I add the MMO to the fresh fuel can and then use that to make up the 2-stroke mix.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!