Egr - Kawasaki KLR 650 Forum
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post #1 of 21 Old 01-24-2020, 10:31 PM Thread Starter
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Do you guys remove your emissions vallve doo ma flicky ?? And the vaccum style fuel petcock?
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post #2 of 21 Old 01-25-2020, 09:34 AM
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I'll strongly encourage you to keep the automatic vacuum operated petcock. The 'Air Injection System', you can use your own judgement, as regards time required to servicing valve tappets.

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post #3 of 21 Old 01-25-2020, 09:50 AM Thread Starter
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Pdwestman is the clean air valve just a egr system? And how does that vaccuum operated petcock system work and what is the benifit of that?
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post #4 of 21 Old 01-25-2020, 09:59 AM
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I'll strongly encourage you to keep the automatic vacuum operated petcock. The 'Air Injection System', you can use your own judgement, as regards time required to servicing valve tappets.
One of the things on my to do list this spring is to swap out the Vacuum Operated petcock... you think I should leave it on there? I Want to be able to drain the gas out of my tank if need be. Also, yesterday was my one year anniversary on the Forum!! hooray.

Please do not lecture me on the effects of temperature and density altitude on an internal combustion engine -Thank you.

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post #5 of 21 Old 01-25-2020, 10:40 AM
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I'll strongly encourage you to keep the automatic vacuum operated petcock. The 'Air Injection System', you can use your own judgement, as regards time required to servicing valve tappets.
Paul, why do you say that, recommending to keep the stock vacuum diaphragm petcock? I hate them, seriously, as they are known to fail, cause problems (erratic running, etc.), whereas the Yamaha Raptor petcock is ultra reliable. I've done the diaphragm removal/block off mod on a couple of stock petcocks, but use the Raptor petcocks instead.

I can appreciate the risk of having a float valve stick in the carb, and (with petcock left on) that fill the crankcase (with gas), spill gas all over the place, burn your house down etc. ...but, when parked indoors I think it's wise to shut petcocks off, diaphragm operated or not!

For those that think that's an unlikely scenario, bike catching on fire, one parts bike I bought had caught on fire... was all scorched/damaged right around the petcock area. (leaked).
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post #6 of 21 Old 01-25-2020, 11:52 AM
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The Clean Air System is not an Exhaust Gas Recirculation system. What it does is, via a vacuum-operated pump, inject outside air into the exhaust tract in order to promote more complete combustion of waste products.

Other than making it a bit easier to work on the bike and removing a small amount of weight, taking it off of the engine will neither improve nor degrade engine performance. It will make you a bad global citizen and upset Greta horribly.
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post #7 of 21 Old 01-25-2020, 12:00 PM
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. . . and upset Greta horribly.
Wonder . . . what type of emissions reduction equipment Greta had on the two auxiliary engines of the million-dollar racing yacht she sailed to the UN?
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post #8 of 21 Old 01-25-2020, 12:22 PM Thread Starter
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Because i do not believe one iota of info on climate change its coming off. I’ll leave petcock. Thanks for help again. Heres a interesting perspective on climate. Sadly this makes more sense than Greta.


If opposed to this on here delete.

Last edited by Steve.k; 01-25-2020 at 02:26 PM.
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post #9 of 21 Old 01-25-2020, 01:27 PM
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Maybe you could have posted that in the off topic forum? I dunno, just a thought but hey I'm new here.

I'm just here for motorcycles...
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post #10 of 21 Old 01-25-2020, 02:25 PM Thread Starter
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Me to but thought id post. Lol I deleted. In case someone get excited.
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