Maxima Castor 927?

[zr7cat]

Anyone run Castor 927 in their CR 250? I have been running Formula K2 but was thinking of switching. Heard is smells sweet.

[Piney Woods]

Been using it off and on for several years in my 01. 50/1 and no issues along with 1oz of Sea Foam in each 2.5 gallons of premix. Power valves perfectly clean, no build up.

[seanmx57]

It's good unless you get in cold temps then the oil will separate from the gas. 40F and lower no good. I run it in the summer and K2 in the winter

 

[zr7cat]

8 hours ago, seanmx57 said:

It's good unless you get in cold temps then the oil will separate from the gas. 40F and lower no good. I run it in the summer and K2 in the winter

 

Copy that.

[Pygmy Warrior]

11 hours ago, seanmx57 said:

It's good unless you get in cold temps then the oil will separate from the gas. 40F and lower no good. I run it in the summer and K2 in the winter

 

Yea, I found out the hard way!

[Motox367]

Yes but you better be on the gas to burn it off. Do not go any leaner than 40:1 with it either.  I've used it for years in my race bikes makes great power. But like i said if you're not on the gas it will splooged all over. This is my 96 cr250 at 32:1 

[Pygmy Warrior]

This is what Maxima sent me on ratio recommendation.

I would go with 40:1 as a starting point. The big bore bikes typically run at a lower RPM than smaller cc bikes, so 40:1 should be good.

 

Thanks,

 

DANNY MASSIE, PRESIDENT

MAXIMA RACING OILS  I  PROFILTER

9266 ABRAHAM WAY  I  SANTEE, CA 92071

P 619.449.5000  I  F 619.449.9694

 

  MaximaUSA.com

[ScwhettyNuttz]

I contacted maxima about running 927 oil in my sons sx 50.  They recommended NOT to run it and if I did to mix somewhere between 20:1 to 32:1.  I ran it 24:1 first, then 32:1 and it was fine.  Only issue I noticed is it makes jetting a little more stringent.  When I ran super M @ 40:1 my jetting was spot on.  With 927, I had to go up on the main (90 to 95), leaner on the needle(W4 to W9), and leaner on the pilot (55 to 52).  Weird but that's what it took to get good transitions between carb circuits.  Ive since burned most of the oil up and will be switching back to M or K.

[Piney Woods]

The bottle suggests up tp 50/1. I trust what they put in print since it opens them up to legal repercussions if issues arise. I am a woods rider on a 250, zero issues.

[ScwhettyNuttz]

@ring ding ding

 

Where abouts in the lonestar are you?  

[greg-15]

There will be a carbon build up. Recommend running the modern synthetics.

[greg-15]

There will be a carbon build up. Recommend running the modern synthetics. The modern synthetics also work great oiling the main bearings. on

[pro101]

I did a lot of research on oils several years ago after I was having fouling problems running Golden Specto as recommended by a dealer.  I can't remember all of the details of all the research but bottom line ... I switched to Maxima Super M for enduro riding 100+ cc.  What I remember is this ... full synthetic on small race bikes running high engine temps at 20:1 / 32:1.  Super M for big bikes at lower rpms and mid engine temps as in woods riding 40:1 / 50:1 ... 927 Castor for lower rpms and running cooler engine temps.  The engine temp has a lot to do with the oil condensing properly for good lubrication.

[Piney Woods]

5 hours ago, KeyKeeper said:

@ring ding ding

 

Where abouts in the lonestar are you?  

Very SE corner.

[Dwayne Allen]

It's what I use. If you maintain your bike properly, (top end, power valve) there is no carbon build up. I've read several articles that say nothing lubricates like castor oil. And yes, it smells amazing!

[motrock93b]

I use it in my Vintage MX bike, along with a number of my racing friends. Upon an end of season teardown, my friend’s was super clean, which prompted me to switch. I use 36:1. I was cautioned against running full synthetic since these old bikes have cast iron sleeves which, unlike nikasil liners are more likely to develop rust spots around the ports if left sitting for a while. And, yes. It smells “right” for a vintage bike.

[CelticDude]

I've beeen running Maxima Castor 927 in all of my 2 strokes for years.  There is no carbon buildup like was normal for castor oils in the past.  I also use 2 ounces per gallon of Maxima Octane Booster per gallon which prevents the oil from separating from gas at low temperatures.  Highly recommended!

[motrock93b]

I also use 2 ounces per gallon of Maxima Octane Booster per gallon which prevents the oil from separating from gas at low temperatures.  Highly recommended!

Oh yeah. I neglected to mention I only run mine with race fuel.

[WRider995]

I run k2.  Its a great oil imo.  Switched from super m and far less smoke at same ratio with k2.  

[Charles]

I just rebuilt a KX85 for a customer and the carbon was everywhere and had crystallized. Bean oil is a hold over from the 60's Gokart days. Also bean oil would mix with fuels like alcohol or nitro. i don't recommend this oil there are too many good oils out there. And as for SPOOGE they are two strokes, run one quart of oil in your car and it will make super horsepower just before it blows up.

CR