I purchased a Dolmar 116 off ebay a month or so ago. After I got it I want to make sure it ran. I seen on the gas cap it said 25:1 for the mix. At the time I dident have any thing mixed for it but, I had 35:1 so I put a small amout of it in just get it started and see if it ran. Well it dident start so I got a new spark plug put it in and it started and ran good. I mixed up some 25:1 and tried starting it yeterday. I dident want to start finally after 10 min or so I got it it running and I cut a few small things but, it dident run real good and keept wating to dye on me. Can I use 35:1 or 40:1 in it or should I try to work on it to see if I can get it to run good with the 25:1?