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| oil/fuel ratio and bottom end oil type? https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=29&t=2864 |
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| Author: | rm400 [ Thu Nov 11, 2010 3:36 pm ] |
| Post subject: | oil/fuel ratio and bottom end oil type? |
got a 1978 RM400 for free! was just wondering what kind of oil/fuel ratio to put in it and what type of oil i should be using in the bottom end? the carb is stock and has stock jetting. |
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| Author: | Axceler8r [ Mon Dec 06, 2010 1:31 pm ] |
| Post subject: | Re: oil/fuel ratio and bottom end oil type? |
A good starting point would be a 20:1 if indeed the jetting is stock. I would try that and see how it runs, since you did not mention your location. I have alwys run my Suzuki RM's @ 32:1 using Golden Spectro without any issues. Tranny/Clutch oil is a personal choice IMHO. I use Castrol 20w50, but I know of some that use different oils and different weights. |
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