break in oil - Yamaha ATV Forum
 
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post #1 of 6 Old 08-10-2003, 05:18 PM Thread Starter
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break in oil

i've read somewhere that u use non Synthetic to break it in than after that u can use Synthetic,, is that true or doesnt matter what u use...

03 kfx440, axis shocks, lt a-arms, few other things
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post #2 of 6 Old 08-10-2003, 06:31 PM
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I've heard that synthetic oils do not allow for enough wear early on in an engines life to properly seat the rings. Personally, I beleive it but don't know it for a fact

97 BANSHEE, 4-mil stroker, ported, rechambered head, carbs, &, &....
04 BANSHEE
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post #3 of 6 Old 08-10-2003, 06:33 PM
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Not only that, but in a quad where the engine oil and tranny share the same oil the synthetic won't work well with the tranny. Its not recommended for your tranny.
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post #4 of 6 Old 08-10-2003, 07:46 PM Thread Starter
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im not goint to put it in the tranny,,, its for the pre-mix....

03 kfx440, axis shocks, lt a-arms, few other things
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post #5 of 6 Old 08-10-2003, 08:50 PM
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I don't really think the tranny is the problem, but friction modifiers can cause the clutch to slip or so I've heard. That doesn't make any difference on a Banshee anyways since the engine doesn't share the tranny oil. I think it's best the break in a motor on a semi-synthetic like yamalube and then switch to a fully synthetic for the longevity of the motor, but that's only my opinion.

97 BANSHEE, 4-mil stroker, ported, rechambered head, carbs, &, &....
04 BANSHEE
00 GRIZZLY
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post #6 of 6 Old 08-11-2003, 02:18 AM
Jer
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Quote:
Originally Posted by raygun
Not only that, but in a quad where the engine oil and tranny share the same oil the synthetic won't work well with the tranny. Its not recommended for your tranny.
The oil that you put in for your clutch and transmission never sees the pistons.

Use yamalube 2R for your pre mix on your break in and you will be fine. You do not want to use a pure synthetic. For your transmission/clutch, stick with a 10w 30 oil or 80/90w gear oil that is made for a wet clutch system. Make sure that the oil does not have any friction modifiers though.
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