Coasting with the clutch pulled. Is it bad? - Kawasaki KLR 650 Forum
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post #1 of 4 Old 04-17-2017, 09:49 PM Thread Starter
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Coasting with the clutch pulled. Is it bad?

I ride in a lot of steepish mountains and find myself wanting to coast with the clutch pulled in a lot. It's kind of serene to just roll along quietly for a mile or two at a time with the engine idling, but I'm not sure if this is reducing the amount of splash oiling that the transmission sees.

You reckon it'll hurt anything? I just worry about the fact that the output shaft is still turning at full speed while the rest of the transmission is just "idling".
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post #2 of 4 Old 04-18-2017, 06:35 AM
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If the transmission is in gear it's not idling. It's turning at the same speed it would it you let the clutch out. I see no harm in what you're doing.

"The problem is you can be so well educated that you can build a nuclear bomb & still believe that you'll get 72 virgins in paradise when you use it." SAM
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post #3 of 4 Old 04-18-2017, 12:41 PM
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shinyribs,
It is good that you are running the engine while coasting. The transmission gears are actually 'oil pressure fed' thru the hollow transmission shafts. It is the transmission Bearings which receive 'splash oiling' from the spinning gears.

Whether the transmission is in neutral or in gear it gets most of its lube from the oil pump. (Banjo bolt above the engine sprocket.)
The rotating crankshaft will also throw off quite a bit of oil. Because it uses a rolling needle bearing, like a two stroke crank.

If one needed to tow a wounded KLR250 or 600 or 650 more than 20 miles, I'd recommend removing the drive chain. Or towing with the front tire on a bumper hitch! Even elevated like that I don't believe the oil level would touch the bottom of the gear teeth. I could be incorrect about 'inclined' oil level, but I personally wouldn't risk it.
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post #4 of 4 Old 04-21-2017, 07:30 AM Thread Starter
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Thanks guys. And sorry for a late reply.

I didn't know that about the hollow shafts. That's a really nice touch!

Paul, like you said, I wasn't sure of the transmission could pick up enough oil to fling on itself, and I didn't know if an idling crankshaft would produce enough fling off either. I figured I'd anyone had the answer it would be you.

Thanks again, guys.
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