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Re: 2006 Suzuki DRZ400S oil leak from bottom of air...
Often times there is a engine breather tube that has to do with emissions that runs from the engine to the air filter breather box. This tube can in some cases blow oil through it when the engine is run hard. Make sure you're not over filling the engine with oil when you change it because this will cause the oil to "blow off" the excess and the air box is where it often goes. There is also another possibility, are you using too much oil in your air filter after you clean it? This too is a common cause for oil in the air box, if that's the case I would not worry about it. The last case scenario is one you don't want, that would be washed out rings which cause blow by and that in turn causes the engine to blow oil out of the breather tube which I'm confident it venting into the air box. Please let me know if these resolve your question and if not give me more details and I will be happy to assist you further. Regards, RSelvy
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hi what you have just described is the head gasket leaking.you say you do not get a drip on the floor??check to see if the oil has travelled towards the rear of the head??if so how much??although this will not really affect the bike under normal riding it is recommended that you get it repaired sooner rather then later.
If it's fuel injected it may have an idle air control valve or sometimes called an auxillary air valve, this is used to automaticly control the idle by giving more air to the engine to stabalize the idle speed under all or no loads.
Hello bpowell456....this is more or less a generic problem on the harley.... an over filled oil tank will make it puke oil from the intake and a sticky check ball valve will cause it also...this ball type valve allows oil to drain back ...very common after sitting a while| Good luck ...hope this helps
Relax...... Harley's all vent oil thru the air cleaner, actually, S & S does to, except they put a overflow valve so it drips on the road rather than the engine. Various little things can cause the oil flow to increase, and yes, over filling, over heating, and sometime, just running balls out for awhile.
Its normal, and shouldnt cause any problems more serious than oil mist on yer engine ( and sometimes passenger)
Check the compression. Pressure getting past the rings can cause the problem. Does the bike burn any oil when you ride? If it does the rings are suspect....... Okay, you have oil > is it the right oil? The prior owner may have put something stupid like 5w30 oil in the crankcase. Do an oil change and put in the heaviest oil Suzuki says is proper. If extra emission stuff is on the engine the dealer should be able to identify the items and you or they could remove or bypass them. Are they contributing to the problem... who knows. Kind of a shot in the dark on that part of the equation.
add a pcv valve by disconnecting the hose form the breather box and installing a universal crank case vent pcv valve p.c.v positive crankcase ventilation
this should solve your problem, you can purchase this valve at any parts store like advance auto parts o reilly or auto zone
40-50 depending on how you drive it and where you go. Hard riding off road less mileage. Street riding taking it easy better. Check out www.drz.info for some good tips on the DRZ. Also www.thumpertalk.com under the DRZ section is great info and more than you ever wanted to know about your bike. I'v had mine for 2 years now and love it. If your going to go off road at all get diffrent tires. The stock death wings are dangerious off road. Good choice in bikes.