Premix

[motodog]

Maxima Caster 927 was developed in conjunction with Maxima/Roger DeCoster Team Suzuki for Ricky Carmicheal when he was still racing his RM250 2 stroke.  I ran Maxima Super M since the 80's.  I have recently switched to Maxima Caster 927 since it was the latest and greatest.  The bean oil has superior ring seal and lubrication under high temps.  It has never failed me.  I believe it's a great blend and great oil.

[kaw rider]

There are alot of good oils out there but you have to run the ratio at the oil companys recommend ratios.

[alward25]

Maxima Castor 927 has been around for more than 20 years, long before Ricky was even thinking about riding a 250.

Maxima Caster 927 was developed in conjunction with Maxima/Roger DeCoster Team Suzuki for Ricky Carmicheal when he was still racing his RM250 2 stroke.  I ran Maxima Super M since the 80's.  I have recently switched to Maxima Caster 927 since it was the latest and greatest.  The bean oil has superior ring seal and lubrication under high temps.  It has never failed me.  I believe it's a great blend and great oil.

[Polar-Bus]

but you have to run the ratio at the oil companys recommend ratios.

Can you explaing this in more detail, and why ?

[Motorrad]

Maxima Caster 927 was developed in conjunction with Maxima/Roger DeCoster Team Suzuki for Ricky Carmicheal when he was still racing his RM250 2 stroke.  I ran Maxima Super M since the 80's.  I have recently switched to Maxima Caster 927 since it was the latest and greatest.  The bean oil has superior ring seal and lubrication under high temps.  It has never failed me.  I believe it's a great blend and great oil.

I've run 927 in bikes since before Ricky was in diapers. Don't know where you heard that it was developed for him...

Also in kips land the 927 gunks them up. 

927 also will separate in cold weather and in many race fuels (low specific gravity). It's a great oil just need to know what your dealing with.

I also don't trust oil manufacture recommendations.   How do they know what I'm runnig it in? Bly low rpm trials bike has different oiling requirements than a screaming banshee.   (amsoil 100:1 comes to mind.  scary)

[kaw rider]

motorrad
You what to run the ratio that your motor needs for the depend that you put on your motor.  You would gum up your kips if you run 927 at 24:1-28:1 with rich jetting cruising around your local riding spot. I got 20 hours on a topend running 927 at 20:1 and the kips look good with correct jetting.

[alward25]

An oil manufacturer premix ratio is based and the concentrate of the oil. 100:1 is not "scary" when you realize that the 32:1 takes more to mix with 5 gallons than 100 or  50:1. That tells me that the lower mix ratio is obviously "watered" down because you need more of it to maintain a good lubricating property.  I ran the Amsoil 100:1 in a quadzilla for the better part of 10 years and performed excellent!!! The power valve stayed real clean too. I run Amsoil dominator @ 50:1 in my K5 and it is the best oil I have run, I have run the others too.

[kaw rider]

i was a big amsoil guy but had fast piston wear since then went away from it. i've pulled piston out of motors that have had 5 hours on piston and had crazy wear. All 2 stroke piston need to be coated to fix the issue with new oils out there running less oil. But that doesn't fix the rings problems.

[motodog]

I digress, to say Maxima 927 was developed for Ricky Carmichael.  The article I was referring to is in Motocross Action July 2009, page 74 where it states that "Super oil actually begin it's life as a two-stroke pre-mix.  When Ricky Carmichael raced a Suzuki RM250 two-stroke, Roger Decoster looked into every possible way to increase performance.  He discovered hidden horsepower in premix oil.  With the help of Maxima, a special blend of two-stroke oil gave Ricky two more horsepower."  I still think it is the Castor 927 pro-series (the latest & greatest blend).  As to Maxima Castor gumming up motors, I run it between 32:1 and 40:1 depending on displacement with a properly jetted motor, and it works fine for me racing motocross WFO - pin it to win it baby!!!!

[greencannon]

Bean oils are great, but can be spoogy. I find they work best with race fuels and I think they were intended to be used with that.
The pump fuel we are getting from the feds is junk now. I run 93 with stabilizer and yamalube R
If i could afford it I would switch back to race fuel and 927

[sbtwo]

Any opinions on Sprectro Golden 2-stroke premix oil?  I have used it in the past in a previous 2-stroke life at 50:1 and never an issue.  Up until recently, I was solely on 4-strokes so this topic never came up.  It is good to hear about everyone's experiences...

[kaw rider]

I mainly see different piston wear from motor i've done and customer has me rering then after 5 hours and i measure the clearance and look at the piston wear. And these are mostly the same model motor and i get feedback from customer on what oil they run and what ratio they run.

[Polar-Bus]

Bean oils are great, but can be spoogy. I find they work best with race fuels and I think they were intended to be used with that.
The pump fuel we are getting from the feds is junk now. I run 93 with stabilizer and yamalube R
If i could afford it I would switch back to race fuel and 927

Well stated.

You should NOT run castor based oils with powervalve engines. Castors do offer superior film strengths, but at a cost of excessive "goo" buildup. Castors are primarily used in race kart race engines that don't use power valves.

[oic0]

I read an article once talking about the really high mix ratios with testing done etc... It pretty much said it depends on the application of the motor. They suggested more oil the harder you run the motor and in small motors that are always run hard (125s etc...).

Anyhow, I run dominator 40:1. It doesn't gunk my motor and I prefer to be on the safe side.

[bob larry]

I am luvn the Cast927!  Sticking with it now..32:1
Nothing like a well tuned machine