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Two Stroke Oil Opinions

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Two Stroke Oil Opinions was created by Gearboy

I know this is a subject that may get a zillion opinions but I want to hear what some of you think. Mechanic friend that has raced and repaired many vintage Yamahas recommends Yamalube 2S in my CT1. I have used Amsoil Dominator in the past with other bikes and am considering changing. Opinions/recommendations?
1970 Yamaha CT1B
1976 Bultaco Sherpa T 183
1980 Bultaco Sherpa T 199A
1996 Suzuki DR200
2015 Yamaha SR400
2023 Honda Super Cub
29 Jan 2021 04:34 #1

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Replied by Pedalcrazy on topic Two Stroke Oil Opinions

I’m not savvy enough to vary from what Yamaha recommends. I use the appropriate Yamalube oil in the oil tank and crankcase.
1978 DT400E
1976 DT400C
1973 RT3
1971 RT1B
1968 DT1 (3)
29 Jan 2021 09:09 #2

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Replied by Schu on topic Two Stroke Oil Opinions

I use Yamalube oil on my autolube bikes and I use Amsoil on my premix bikes. I wasn't confident that the oil volume that is metering thru the autolube pump would be based on the modern technology of Amsoil.
Schu

CT1B, CT1C, JT1, JT2, CT2, RT3, DT360A, GT80B, DT100B, DT125B, DT175B, DT175C, DT250B, DT400B, Z50

Someday, you'll own some Yamahas
The following user(s) Liked this Post: MarkT
29 Jan 2021 09:43 #3

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Replied by RT325 on topic Two Stroke Oil Opinions

Just keep using what you've been happy with unless there's a good reason to change.
29 Jan 2021 11:34 #4

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Replied by MarkT on topic Two Stroke Oil Opinions

I'm staying out of this one except to link to an article on why you probably shouldn't use dominator.

www.oildepot.ca/interesting-articles-tsb...inator-2-stroke-oil/

I found the above article after noticing Amsoil themselves does not recommend dominator for some engines like outboards unless they are periodically inspected.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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29 Jan 2021 12:38 #5

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Replied by MACE6772 on topic Two Stroke Oil Opinions

2S works very well on my 4 1975 DT's. Minimal smoke after warm up. And someone always has it on sale. No need to over complicate an oil choice. All my bikes are predominantly street ridden and have the Autolube working. Now the premix guys may have a different answer.
76 Dt 125 75 Dt 175 75 Dt 250 75 Dt 400 09 FZ6R
29 Jan 2021 12:39 #6

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Replied by DEET on topic Two Stroke Oil Opinions

Yamalube 2S is first choice.

Second choice.....




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Where the Yamaha Enduro is still a current model...
The following user(s) Liked this Post: MarkT, Bigdog302, JGersh, JayB, Snglsmkr, JimA, AirborneSilva, Schu
29 Jan 2021 13:06 #7

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Replied by rodent on topic Two Stroke Oil Opinions

I've used Motul, Maxima and am now using Castrol Power 1 Racing 2T as it for both premix and autolube, so it suits both my dirt and road bikes :)
Last edit: 29 Jan 2021 13:19 by rodent.
29 Jan 2021 13:17 #8

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Replied by Gearboy on topic Two Stroke Oil Opinions

I just spoke to my friend the mechanic. He said to stick with the Yamalube 2S, which was in the autolube tank. He said if you change oil you run the risk of the rings sticking.
1970 Yamaha CT1B
1976 Bultaco Sherpa T 183
1980 Bultaco Sherpa T 199A
1996 Suzuki DR200
2015 Yamaha SR400
2023 Honda Super Cub
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29 Jan 2021 13:48 #9

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Replied by Delcowizzid on topic Two Stroke Oil Opinions

Both my bikes are premix the 78 dt250 gets castrol garden 2t at 20:1 my 89 Kdx200 with fresh engine and fresh nicasil coated bore gets penrite race caster at 32:1 probay won't want to put them in an auto lube setup use something made to go on an oil pump system caster isn't good in autolube either but it does smell glorious haha
Last edit: 29 Jan 2021 22:58 by Delcowizzid.
29 Jan 2021 22:58 #10

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