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2 Stroke oil and engine/transmission oil

  • vb@125
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Hi, 

I recently acquired a 1974 Yamaha AT1 125 enduro. 
I have been looking for recommendations for two stroke oil for the injection pump and oil for the engine/transmission.
Looks like Yama lube 2S is what is suggested for the injection pump.
What oil works best for the engine/transmission?
Also does this model have a wet clutch?


Thanks! 
12 Jun 2021 20:09 #1

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Replied by RTD2 on topic 2 Stroke oil and engine/transmission oil

Yamaha 2S
68 DT1, 70 DT1C MX, 71 CT1C, 71 RT1B, 71 DT1E MX, 73 AT3MX, 70 Husqvarna 250 Cross, 57 Matchless G80CS, 76 Honda Elsinore; 2015 Yamaha FZ-09; 2021 KTM 500 EXC-W
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12 Jun 2021 21:42 #2

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Replied by RT360Fan on topic 2 Stroke oil and engine/transmission oil

Yes wet clutch.  Book calls for 10w30.  Lots of choices out there, just make sure whatever you choose meets JASO MA requirement.  Yamalube 10w40 or Honda GN4 10w30 will work just fine.
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12 Jun 2021 22:20 #3

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Replied by vb@125 on topic 2 Stroke oil and engine/transmission oil

Thank you for the reply. Where can I find the manual 
for my bike? 
13 Jun 2021 07:39 #4

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Replied by RT360Fan on topic 2 Stroke oil and engine/transmission oil

In the Tech Library, you can download the service manual for your model.
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13 Jun 2021 09:57 #5

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Replied by vb@125 on topic 2 Stroke oil and engine/transmission oil

Thank you! Found it.
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15 Jun 2021 18:19 #6

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