2T oil and mix ratios? - Page 2

Pete-NZ · 06-27-2012, 12:21 AM

Just had a look at what Montesa states for the Cota 348... 30wt oil @ 4% = 25:1
It's almost a oil engine compaired to some others..

SnoDrtRider · 06-27-2012, 05:52 PM

OK...
I'll get this thread even more wound up

I use Honda HP1 @ 32:1 in my 200 Cota...

showtime45 · 06-27-2012, 06:01 PM

Quote:

Originally Posted by SnoDrtRider

OK...
I'll get this thread even more wound up

I use Honda HP1 @ 32:1 in my 200 Cota...

+1...

I use Blendzall Ultra at 32-1 in my 1974 TY250

lineaway · 06-27-2012, 06:03 PM

Well I just went to autozone and bought two gallons of pennzoil XLF two stroke at 15.99 each. Just so happened that my rewards card hit the $20 off at the register. Cha ching, the wife just bought me a 30 pack of coors and don`t know it!!

Who said auto lube was a bad thing!

brewtus · 06-27-2012, 07:09 PM

Quote:

Originally Posted by SnoDrtRider

OK...
I'll get this thread even more wound up

+1, since I can do nothing right in the OP's opinion.

Motul 800 full-synthetic at 80:1 in my 314 and 315 Montesas, and an "Eyeball-Rite" mix of 50:1 in the Team TY80. By "Eyeball-Rite" I mean that I pour the Motul out of the bottle into the TY's fuel tank at what I think will make a 50:1 mixture when I add in the already made pre-mixed 80:1 fuel from the 315's fuel can. I'm simply too damn lazy to mix up two separate cans of fuel for a Trials weekend. Been doing it for 3 years now, with no problems so far. Not yet anyway. I did take a peek at the piston through the intake and exhaust ports, no piston scratches noted as of last week.

Very important, since the Team TY has to be in TOP SHAPE to take on some NMTA interlopers who have purchased a TY80 and assembled a rag-tag team of wannabes who's greatest desire is to try to horn in on the League's superior accomplishments. Good luck boys, looking forward to the challenge!!

Hijack over. More to come on another thread. Back to the discussion at hand....

Twin-shocker · 06-28-2012, 12:57 AM

Motul 800 is a full synthetic pre mix oil, and perfect for trials use. Using this at 80:1 in an air cooled motor will cause no problems whatsoever, and several UK twin-shock championships have been won on air-cooled bike using this mix ratio.

Ymirtrials · 06-28-2012, 12:02 PM

I'm running Opti-2 at 80:1 in my rev3, seems to run nice and clean. I'll likely start running the same in my Bultaco once I run out of the Belray h1-r that I'm using now.

Twin-shocker · 06-28-2012, 03:13 PM

As long as you are running full synthetic pre mix only oil, 80:1 will work just fine in any air cooled trials motor. Provides better throttle response, cleaner running, and means a far longer time between servicing exhaust system.

wb22rules · 06-28-2012, 06:45 PM

Quote:

Originally Posted by motojunky

Maxima is not full-synthetic but is marked "premix only." Seems like it has been working fine at my conservative (maybe overkill) ratio.

http://www.maximausa.com/shopping/in...products_id=15

I have been using the Maxima 927 oil at 80-1 since I got the bike earlier this year, do you think the M a better oil to use for a 2001 Gas Gas 321TXT ? I am using ethanol free 93 octane.

Twin-shocker · 06-28-2012, 11:55 PM

If you are running at very lean mix ratios a fully synthetic pre-mix only product is a better choice than semi synthetic. However if your riding isnt likely to involve extreme conditions or extended WOF riding, then the semi synthetic isnt likely to cause any sort of problems. Main thing to remember if you are running a pre-mix bike, is to use pre-mix oil, and try to avoid using dual purpose oils intended for autolube use.

machalooney · 06-29-2012, 05:21 AM

Quote:

Originally Posted by Sting32

I wont be the "last word" on this, everyone has opinions, I guess.

In my modern gasgas bikes, I run Castrol tts, 80:1, using a ratio rite cup to mix with. I DO NOT ride my 300cc Gasgas Raga Pro trials bikes, like most will ride a "dirt bike". I have done this since 2001. I have a good mechanic, who has had to fix things and he has never said "your cylinder" is showing signs of bad oil/fuel (aka lubrication/wear issues) knock on wood now.

Since the PRO model gasgas's trials bikes (since 03) the crank bearings are lubed via the transmission fluid, which is another reason you change the transmission oil VERY often... So, at least in my bikes, all you have is cylinder lubrication in a water-cooled engine.

In my air cooled bikes, I like to run at least 50:1 in those bikes, with the same oil. (this means it has more oil in the fuel).

Some run 50:1 in modern trials bikes, I dont think that is a problem, unless you start oil-fouling your plugs. so do what you wish, I think in that range... I know you should bias your gas:oil ratio by how or what you ride... If you tend to Motocross your trials bikes, then by golly use more oil in the gas, as in closer to 50:1 than 80:1.

Nice thing about trials bikes is, we're "idling" most of the day of riding, unlike other bikes and uses, where the bike will reach 1/2 to full rpms most of these same hours of riding, per day.

my Chainsaw, which when used is WFO most of the time I use it, will not take being mixed at 80:1, it likes a lot more oil because of how it is used. One chainsaw we had (old homelite) was 16:1 and lasted 25 years. new chainsaw is more like 32:1. my watercooled outboard motors like 50:1, since when you ride watercraft your duty cycles are usually wfo or near wfo most of the day. again it is a different duty the engine is being subjected too. Harder or more WFO the engine, the more oil you probably ought to use.

This.

Ymirtrials · 06-29-2012, 06:56 AM

Anyone else running Opti-2 oil? When I started running it I assumed it was full synthetic as the manufacturer recommends 100:1 mix but nowhere on the packaging does it say synthetic at all.... I know plenty of folks up here that run it in their trials bikes, chain saws etc.

http://opti2-4.com/index.php?dispatc...ategory_id=165

Twin-shocker · 06-29-2012, 09:22 AM

I would guess Opti-2 is semi synthetic, but it seems strange there is nothing to clarify this?

Ymirtrials · 06-30-2012, 05:54 AM

Quote:

Originally Posted by Twin-shocker

I would guess Opti-2 is semi synthetic, but it seems strange there is nothing to clarify this?

Does seem strange eh? I'm going to call the distributor next week and get the full scoop, who is also the local Beta dealer, he has been selling the stuff for years and I'm sure knows all there is to know about it.

Twin-shocker · 06-30-2012, 06:14 AM

Many dealers sell dual purpose 2T oils for trials use, and I am not sure many are aware of the fact oils appropriate for autolube use, shouldnt be used at the same type of ratios that are OK for fully synthetics?

Maybe better to start to use something like Motul 800, rather than rely on a product whose manufacturers provide no technical data about it whatsoever?

06-27-2012, 12:21 AM	#16
Pete-NZ Studly Adventurer Joined: May 2011 Oddometer: 508	Just had a look at what Montesa states for the Cota 348... 30wt oil @ 4% = 25:1 It's almost a oil engine compaired to some others.. __________________ Here.... my XR250 leaner side car build http://www.advrider.com/forums/showthread.php?t=716993 Pete-NZ screwed with this post 06-27-2012 at 12:31 AM

06-27-2012, 05:52 PM	#17
SnoDrtRider Got Snow? Joined: Mar 2006 Location: South Jersey... Close to the Pines Oddometer: 2,026	OK... I'll get this thread even more wound up I use Honda HP1 @ 32:1 in my 200 Cota... __________________ Wayne - 1984 HD FXRS... Not your stereotypical Harley rider. 1980 Montesa Cota 200 Got Logs? 03 DRZ 400s Gone but not forgotten... Days get shorter, Nights get longer, Snow gets deeper... Life is good!

06-28-2012, 12:02 PM	#22
Ymirtrials Adventurer Joined: Jan 2012 Location: Ymir BC Canada Oddometer: 35	I'm running Opti-2 at 80:1 in my rev3, seems to run nice and clean. I'll likely start running the same in my Bultaco once I run out of the Belray h1-r that I'm using now. __________________ Jay 2004 Beta Rev 3, 1972 Bultaco Sherpa T 250, 00' Kawasaki Super Sherpa 250 (Wife's)

06-29-2012, 06:56 AM	#27
Ymirtrials Adventurer Joined: Jan 2012 Location: Ymir BC Canada Oddometer: 35	Anyone else running Opti-2 oil? When I started running it I assumed it was full synthetic as the manufacturer recommends 100:1 mix but nowhere on the packaging does it say synthetic at all.... I know plenty of folks up here that run it in their trials bikes, chain saws etc. http://opti2-4.com/index.php?dispatc...ategory_id=165 __________________ Jay 2004 Beta Rev 3, 1972 Bultaco Sherpa T 250, 00' Kawasaki Super Sherpa 250 (Wife's)

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06-27-2012, 06:03 PM	#19
lineaway Studly Adventurer Joined: Oct 2011 Location: nm Oddometer: 770	Well I just went to autozone and bought two gallons of pennzoil XLF two stroke at 15.99 each. Just so happened that my rewards card hit the $20 off at the register. Cha ching, the wife just bought me a 30 pack of coors and don`t know it!! Who said auto lube was a bad thing!

06-28-2012, 12:57 AM	#21
Twin-shocker ^OP Studly Adventurer Joined: Jan 2012 Oddometer: 993	Motul 800 is a full synthetic pre mix oil, and perfect for trials use. Using this at 80:1 in an air cooled motor will cause no problems whatsoever, and several UK twin-shock championships have been won on air-cooled bike using this mix ratio.

06-28-2012, 03:13 PM	#23
Twin-shocker ^OP Studly Adventurer Joined: Jan 2012 Oddometer: 993	As long as you are running full synthetic pre mix only oil, 80:1 will work just fine in any air cooled trials motor. Provides better throttle response, cleaner running, and means a far longer time between servicing exhaust system.

06-28-2012, 11:55 PM	#25
Twin-shocker ^OP Studly Adventurer Joined: Jan 2012 Oddometer: 993	If you are running at very lean mix ratios a fully synthetic pre-mix only product is a better choice than semi synthetic. However if your riding isnt likely to involve extreme conditions or extended WOF riding, then the semi synthetic isnt likely to cause any sort of problems. Main thing to remember if you are running a pre-mix bike, is to use pre-mix oil, and try to avoid using dual purpose oils intended for autolube use.

06-29-2012, 09:22 AM	#28
Twin-shocker ^OP Studly Adventurer Joined: Jan 2012 Oddometer: 993	I would guess Opti-2 is semi synthetic, but it seems strange there is nothing to clarify this?

06-30-2012, 06:14 AM	#30
Twin-shocker ^OP Studly Adventurer Joined: Jan 2012 Oddometer: 993	Many dealers sell dual purpose 2T oils for trials use, and I am not sure many are aware of the fact oils appropriate for autolube use, shouldnt be used at the same type of ratios that are OK for fully synthetics? Maybe better to start to use something like Motul 800, rather than rely on a product whose manufacturers provide no technical data about it whatsoever?