Post by patrickfloyd on Nov 7, 2012 18:06:26 GMT -5
Never used Amsoil on my 2 stroke but always had good luck with Mobil -1 MX2T. 32/1 is what I usually ran.
Factories determine things such as jetting, slide cutaway, and spark plug temperature based on a specific air/fuel ratio. If you put less oil in the gas (ie; 40:1, 50:1, 100:1) then the ratio is off and the mixture becomes richer. Cylinder temps go down, plugs start fouling, oil comes out of the pipes, etc..
Tried AMSOIL for the first time today mixed 40/1 for the yz125 and cut down on the amount of spooge out of the end of the pipe. Bike ran great but I always think that little bike runs great.
I was using Maxima synthetic at 32/1 and 40/1 with the same heavy coating of oil at the end of the pipe after riding.
Any thoughts or opinions on what you use??
I ran the Maxima @ 40/1 with my yz250. If it was a tight race I would notice a little spooge after it. More open races with higher rpms and it was always clean. Are you riding in a gear higher @ the lease? I know those 125's like to sing. I never could ride em because of that
Thanks for the response. Bean, I generally do ride a gear higher through most of the lease and get on the pipe in some sections, bike is geared 13/51 and I stay mostly in 3rd through 5th with the tight ratio. Tried 12/49 which I really liked as I could stay on top of the gear better since the lease is so tight. I generally don't ride the bike at extremely high rev's. I know that's the performance level for these little two strokes but I can't imagine that it's great for the engine.
Scott, you could try an oil with a lower flash point. Motul makes one. I thinks it's 710 (800 is the one frequently used, but has a flash point of something like 450 vs 175 with the 710). That said, I wouldn't recommend it for a 125 that was ridden in the typical pinned mode. Probably fine for the lease, though.