'08 is an inconsistent oil burner - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #1 of 31 Old 06-25-2019, 08:20 PM Thread Starter
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Arrow '08 is an inconsistent oil burner

I have an 08, oil burning isn't an issue even though I'm running 5w30 synthetic. I'Il add maybe a cup per 500 miles.
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post #2 of 31 Old 06-26-2019, 04:09 PM Thread Starter
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I'm going to use 0w20 next time, and put in a 138 dynojet. Maybe 50mpg? I'm 70mph most of the time.
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post #3 of 31 Old 06-26-2019, 08:09 PM
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I'm going to use 0w20 next time, and put in a 138 dynojet. Maybe 50mpg? I'm 70mph most of the time.
Are you riding in -5C / 20F degree weather, all the time?
I will urge you to NOT use 0W20 automotive engine oil in any wet clutch / shared transmission & engine lubrication system.

The transmission gears cause thinning of the engine oil as it is. And the new generation, thin automotive engine oils have super slippery additives which may cause Starter Clutch Slippage & Drive Clutch Slippage.

My advice is to not go thinner than 5W40 and Confirm on the back label that any chosen oil receives the JASO MA / MA2 motorcycle approval.

I also think your main jet choice is at least 2 sizes too small. But it is your bike, do as you wish.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #4 of 31 Old 06-26-2019, 08:22 PM
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Here's another way to verbalize your plan:

"This summer I'm going to 0W/20 oil in my 327 Chevy, lean the shit out of the mixture, and run it at 5500rpm for hours."

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


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post #5 of 31 Old 06-26-2019, 08:42 PM Thread Starter
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Haha love the last post. I don't care if this bike lives. My last bike was a gsxr750, thinking of going back to one.
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post #6 of 31 Old 06-26-2019, 09:45 PM
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What year Gixxer?

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.
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post #7 of 31 Old 06-27-2019, 08:47 PM Thread Starter
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1995 srad. Motorcycle oil is 12 a quart at advance. Since I work at a shop I get free semi synthetic 5w30 which is what I use. I also don't wear a helmet unless I'm on the interstate, and that's because I can hear my earbuds better, keeps big bugs from kamikaze attacks, also keeps the loose skin on your face from flapping around.
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post #8 of 31 Old 06-27-2019, 08:51 PM
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Ride on jr, ride on. Your bike, your way, we can respect that.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #9 of 31 Old 06-28-2019, 01:32 AM
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Did you consider doing the PCV Valve mod? I heard it reduces oil loss big-time. I did this mod but can't really say if it is working or not being I have so few miles on my bike so far. Mine is a 2012 with about 1,200 miles on it so far. I just got the bike about a year and a half back I didn't ride much due to winter and surgery on my foot right where the gear-shifter sits on my foot. Anyways, I did the mod because I heard these bikes eat oil and I didn't want it to so I did the mod. I have not had to add any oil so far. If you do it, don't use the metal PCV valve, find the plastic one with a Mercedes Benz part number. It has a reed in it than is much faster. If your interested, I'll look up the part number and post it but until then look up the PCV mod and let me know your thoughts about it.
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post #10 of 31 Old 06-28-2019, 08:02 AM
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Did you consider doing the PCV Valve mod? I heard it reduces oil loss big-time. I did this mod but can't really say if it is working or not being I have so few miles on my bike so far. Mine is a 2012 with about 1,200 miles on it so far. I just got the bike about a year and a half back I didn't ride much due to winter and surgery on my foot right where the gear-shifter sits on my foot. Anyways, I did the mod because I heard these bikes eat oil and I didn't want it to so I did the mod. I have not had to add any oil so far. If you do it, don't use the metal PCV valve, find the plastic one with a Mercedes Benz part number. It has a reed in it than is much faster. If your interested, I'll look up the part number and post it but until then look up the PCV mod and let me know your thoughts about it.
Thank you, for your well-intentioned suggestion, James1967! And . . . nothing to put you down, but . . . thanks for the, "source of innocent merriment" your post provides!

I'm reminded of the opening credits to the TV show, "Fantasy Island" (q.v. on Google, for video) where a little man in a white suit on a tower cried out words to the effect: "Look boss! Da plane! Da plane!" (An indication of the arrival of one or more fantasy-driven guests.)

Recommended reading: https://www.klrforum.com/klr-other-m...ntilation.html

Some OPINION (vs. FACT) follows:

As to the Mercedes-Benz part, in contrast to the garden-variety automotive PCV valve . . . the upgraded part permits accomplishment of a meaningless act (PCV valve mod) with more efficiency! (Just as a footnote; a typical automotive PCV valve modulates its orifice size inversely with vacuum, I think--the hole gets smaller as vacuum (negative pressure differential) increases; the Mercedes-Benz part, I think, responds without modulation.)

This skepticism aside, if you're convinced your oil consumption is reduced by installing a check-valve in the crankcase vent line . . . more power to you! I await quantifiable tangible indication of the phenomenon (lower oil consumption with the PCV mod), but . . . haven't encountered any, yet.

===========================

CAUTION: Likely irrelevant anecdote follows; avert your eyes, if offended by same!

First, I respect Normk's knowledge and experience. Not that we had no disagreements. One, pertinent to the subject of PCV valves: I asserted, one function of a PCV VALVE on a PCV system-equipped engine is: preventing a flame front from an intake backfire from entering the sump, where flammable hydrocarbons and aerosols might threaten an explosion over-pressure in the crankcase. Normk said he never heard of such a thing, and thus rejected the concept entirely.

Some Google-fu disclosed conventional wisdom corroborating my postulation; I shared the information in a post; heard no more from Normk on the specific and limited subject.

As to crankcase explosion . . . had a 1962 Dodge 318-equipped convertible (Louisiana version, NOT under California regulations at the time); Hard time starting on a rainy, rainy day; much starter grinding, then . . . BOOM! A crankcase explosion drove the oil filler cap/breather from a valve cover into the hood, from underneath, leaving a small convex (from the outside) dent in the hood. Fortunately, no seals were blown by the over-pressure consequent to the explosion; only slight cosmetic damage its consequence.

Now, this story only illustrates crankcase explosion; NOT a confirmation of a PCV valve preventing one (car had only a dump tube; no PCV system). Just sayin', crankcase explosions CAN happen, your car's PCV valve prevents such an occurrence from an intake backfire.

-------------------------------------------

CONTEXT: A check-valve in a KLR's crankcase vent line does NOT comprise a PCV system.

“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre

Last edited by Damocles; 06-28-2019 at 08:08 AM.
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