Oil ratio

[ojcool]

The big thing people are missing is that Yamalube is a petroleum based oil (full petro) where as Golden Spectro is a petroleum/synthetic blend. I run my bike on golden spectro and have been running it at 48:1 since day 1. The bike only sees the dunes and a majority of that is hillclimbing, so it by no means gets babied (just got back in fact). Never had a single issue, and still kicks high numbers on the stock top end. There seems to be a common misconception that running more oil makes you less likely to seize the engine. In fact, if you don't jet it properly I would argue that more people seize motors by running too much oil. The reason, the run more parts oil, less fuel (which aides immensley in cooling the piston) and it leads to a hotter running engine and a possible seizure. If you start running a richer oil raito, make sure and jet up accordingly.

 

Now there is some contention that you can make more power by running a higher ratio of oil, but it's not a lubrication issue it's a ring seal issue. So, haven't tested it myself, but my buddy who works at the local Yamaha shop and has dyno'd many a bike said he has seen it although he didn't believe it till he saw it. That's where I fall right now, I'll believe it when I see it. For me, oil is not combustible, so I will run as lean an oil ratio as I can to peak power, but just enough to keep everything moving.

Yep, its the shear strength of the oil, not how much you run.

[96_banshee_96]

According to their website 50:1 is safe. They do claim to be full synthetic which means it IS supposed to be safe to run at these ratios.

 

I run 80:1 Amsoil and I have had no problems with it. I pulled my head and checked my cylinder bores after about 30 hours on a fresh rebuild and they still showed the honeing marks. I don't feel comfortable with storing the bike with this lean of a mix. I think if your putting the bike up for winter you should put 24:1 in it and run it some to coat all the parts with a good amount of oil.

 

I would run the fuel. If your really that worried about it just add some yamalube to the fuel you already mixed. Figure out how many ounces of yamalube to bring the mix to the desired 32:1 ratio and roll on.

 

That is exactly what a buddy of mine just said. He said throw about 6oz of some yamalube to what I already mixed to the 5 gallons and it should give me 32.1 :thumbsup: