Two Stroke Oil

**JimR** · 11-07-2009, 09:15 AM

Hi All,
Back in the day Yamaha recommended 30 wt engine oil as a two stroke lube, which gave plug problems. What Oil does every one use these days in their older bikes
Regards Jim

**Wildcardracing** · 11-10-2009, 03:36 PM

I like the yamalube 2R if you want to stick with an OEM oil. If you prefer the aftermarket offerings I like the Klotz brand oils, which one will depend on use. I like the R50 for mix with gasolines and the Super Techniplate for mix with Methanol. I always recommend a blend type oil that has some castor content to it. I try to avoid the full synthetics, while they are superior for film strength I feel they promote cylinder glazing and they offer less performance because they don't burn off. The casor based offerings have a lower flash point and therefore a slight fuel quality to them that most of the full synthetic offerings don't. I'm also just not comfortable with the idea of mixing 50 or even 100:1, call me old fashioned.

**JimR** · 11-13-2009, 09:34 AM

Hi Wildcard,
Yamalube 2R did not exist in the 60's~70's~80's (in the UK) so perhaps it's not quite the right stuff for classic Yams as I pointed out the factory recommendation then was 30 wt engine oil. Castrol R30 used to give a great smell from the exhaust but had the side effect of producing very hard carbon deposits which made decoking very difficult with high level exhausts, perhaps with older bikes its a mineral/ or synthetic issue.
Regards Jim

**Wildcardracing** · 11-27-2009, 02:58 AM

Jim,
I wouldn't hesitate to run the newer offerings in your older bikes assuming they are a pre-mix setup. If you have injectors on them you'd of course want to run an injector type oil. The only real major material differences you'll see between the engine internals of the classic motors and newer ones is the rings are now made of chromoly steel rather than iron. I would dare say you'll see a significant improvement in spark plug life and wear of your engine by running the more modern oils in lieu of 30w motor oil.

**JimR** · 11-27-2009, 07:16 AM

Quote:

Originally Posted by Wildcardracing

Jim,
I wouldn't hesitate to run the newer offerings in your older bikes assuming they are a pre-mix setup. If you have injectors on them you'd of course want to run an injector type oil. The only real major material differences you'll see between the engine internals of the classic motors and newer ones is the rings are now made of chromoly steel rather than iron. I would dare say you'll see a significant improvement in spark plug life and wear of your engine by running the more modern oils in lieu of 30w motor oil.

What do you think about running Castrol R30 or R40 ? I just love the smell in fact drop some into the fuel of a 4 stroke motor as a UCL and you get the same great 'race track' smell.
Back in the day I used 30 wt oil in the autolube systems with no problems, perhaps with these old bikes not mixing different oil types is more important than the type of oil used. At the moment my old strokers are running Tesco's 2T (Tesco is simular to Walmart) with no problems
Regards Jim

**Wildcardracing** · 12-17-2009, 09:05 AM

Jim, I really like the semi synthetics. The synthetic/castor blends really seem to have the best combination of wear reasistance, power output and clean burnoff. I haven't really done any testing on the R30 or R40 Castrol but I'd say it'd be an improvement over conventional 30w oil for sure. I've also never ran any of the store brand 2 stroke "weed eater" oil in my machines either. But again I think it'd be an improvement over the 30w.

**QuickMick** · 05-22-2010, 09:17 AM

Watch this short video it should explain everything... Or maybe confuse you.

[Only registered can see links. ]

**JimR** · 05-22-2010, 10:38 AM

Quote:

Originally Posted by QuickMick

Watch this short video it should explain everything... Or maybe confuse you.

[Only registered can see links. ]

very good

.... but animated figures will not answer the question

oil is an emotive subject and everyone tells you different ... my point was in the 60's/70's straight 30w oil was ok for 2 strokes (ok they coked up and the main bearings tended to rust) as I never had a seize using it (tbh if you ran the engine on the limits there were no problems). Today my 3 two strokes run cheap two stroke oil with no problems (modern cheap two stroke oils are perhaps better than the old 30 wt) so I guess there is no problem .... unless you own an RD/RZ500 which played up on std oil
Regards Jim

Prograde Oil · 05-22-2010, 11:14 AM

Jim, good luck in your search. Have you looked into [Only registered can see links. ], which is a high performance oil or maybe [Only registered can see links. ] which was set up for racing? Both of these are full synthetic which will benefit you greatly!

**JimR** · 05-22-2010, 11:16 AM

Quote:

Originally Posted by Prograde Oil

Jim, good luck in your search. Have you looked into [Only registered can see links. ], which is a high performance oil or maybe [Only registered can see links. ] which was set up for racing? Both of these are full synthetic which will benefit you greatly!

on the same context why do I need expensive oil when the bike runs fine on walmart/tesco oil ?

11-10-2009, 03:36 PM	#2
Wildcardracing Join Date: Oct 2009 Posts: 19 Thanks: 0 Thanked 0 Times in 0 Posts	I like the yamalube 2R if you want to stick with an OEM oil. If you prefer the aftermarket offerings I like the Klotz brand oils, which one will depend on use. I like the R50 for mix with gasolines and the Super Techniplate for mix with Methanol. I always recommend a blend type oil that has some castor content to it. I try to avoid the full synthetics, while they are superior for film strength I feel they promote cylinder glazing and they offer less performance because they don't burn off. The casor based offerings have a lower flash point and therefore a slight fuel quality to them that most of the full synthetic offerings don't. I'm also just not comfortable with the idea of mixing 50 or even 100:1, call me old fashioned. __________________

11-27-2009, 02:58 AM	#4
Wildcardracing Join Date: Oct 2009 Posts: 19 Thanks: 0 Thanked 0 Times in 0 Posts	Jim, I wouldn't hesitate to run the newer offerings in your older bikes assuming they are a pre-mix setup. If you have injectors on them you'd of course want to run an injector type oil. The only real major material differences you'll see between the engine internals of the classic motors and newer ones is the rings are now made of chromoly steel rather than iron. I would dare say you'll see a significant improvement in spark plug life and wear of your engine by running the more modern oils in lieu of 30w motor oil. __________________

12-17-2009, 09:05 AM	#6
Wildcardracing Join Date: Oct 2009 Posts: 19 Thanks: 0 Thanked 0 Times in 0 Posts	Jim, I really like the semi synthetics. The synthetic/castor blends really seem to have the best combination of wear reasistance, power output and clean burnoff. I haven't really done any testing on the R30 or R40 Castrol but I'd say it'd be an improvement over conventional 30w oil for sure. I've also never ran any of the store brand 2 stroke "weed eater" oil in my machines either. But again I think it'd be an improvement over the 30w. __________________

05-22-2010, 11:14 AM	#9
Prograde Oil Join Date: Apr 2010 Posts: 106 Thanks: 1 Thanked 4 Times in 4 Posts	Jim, good luck in your search. Have you looked into [Only registered can see links. ], which is a high performance oil or maybe [Only registered can see links. ] which was set up for racing? Both of these are full synthetic which will benefit you greatly! __________________ Michael Capps Prograde Oil Want to become a dealer?

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