Premix

[yzmike]

Hi,read some discussion on castor,and Ive found that there is a trade off, good ring seal but very hard carbon! This really fouls the power valve and robs performance. Also separates from the gas within 24 hrs. I use Belray H1R at 50 to 1,only because I cant get Amsoil in San Antonio,no dealer! I heard that Redline makes a superb premix oil,no dealer here.I really like my KX 5,but the front springs are too stiff,tell me what to do?  thanks, yzmike.

[Paul]

Castor is BAD stuff... sticky rings and power valves and YES diamond like carbon. I just pulled the topend off my spare engine (a 2000 KX500) that has only been run on SuperM since day one and there was no carbon to speak of in there.

Springs... if they are stock then you must weigh close to 130lbs for them to be too stiff. My 2001 had the problem of too soft a spring compensated with too stiff a shim stack.

[mikesmith]

I talked to Maxima about the 927 I was running(like you said lots of hard carbon)they said its a better pre-mix at high temps,but for 80% of riders Super-M is good enough.So unless you tear down your top end after every race Id use Super-M.I notice far less spooge at 40-1,and as you said there should be less carbon when I do a top end.I miss the smell of 927 though!

[biscuit]

Try MOTUL 2T 800 this stuff is just the "dog's knob"

[MarkNZ]

I have to agree Motul 800 is the Dogs Bollocks indeed. Real Spoozy, and I back it up by 5 Years of Zero problems. Still does'nt puff 'n smell as nice as the castrol R........

[djcheez]

i run redline on all my bikes including my drag bike. 50:1 and no problems or build up

[DrMojo]

Question, I noted a bunch of you guys run 40:1 and even 50:1.  I noted that Kawasaki recommends 32:1 as the ratio.  Will 32:1 cause problems?  I figure more oil in the gas will protect the top-end better.

[Paul]

The oil in the gas is for the bottom end AND the top end. With todays semi-synthetics and full synthetics the shear strength of the oil os what is protecting the engine. I run mine at 40:1 and have had no problems. That 32:1 will offer a better chance of fouling that plug that either 40 or 50 to 1. I remember when the recommended was 20:1

Question, I noted a bunch of you guys run 40:1 and even 50:1.  I noted that Kawasaki recommends 32:1 as the ratio.  Will 32:1 cause problems?  I figure more oil in the gas will protect the top-end better.

More oil = more protection BUT it will also foul plugs and require more frequent silencer packing changes as well as loading that big 5'er up if your running slow trails.

[djcheez]

yup, with good oil, you can run a leaner mixture. redline actually says you can run it at 100:1, but i dont think i'll do that. i know of guys running 60:1 and 80:1 with no problem.

[yzmike]

Wow! What great conversation! You guys are in warp speed,light years ahead of the usual swamp rats. The undeniable truth about oils is , any organic oil is as dead as the dinosaur! Yamaha,honda,etc.recomends a ratio assuming you are using thier oil,however the after market does only one thing, improve lubrication. But you get what you pay for. I for one would never use less than the best,an ounce of prevention,etc!! Yeah, I miss the smell of castor, but I am told that Klotz,and Amsoil,have a delightful odor,maybe Redline also. And the protection quality is such that the ratio is 50 to 1.