SuzukiSavage.com /cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Oil in the air box and in the filter? /cgi-bin/YaBB.pl?num=1181322569 Message started by RangerBob on 06/08/07 at 10:09:29

Title: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 10:09:29 Hey guys, I'm brand new here, but I obtained a Savage last September.  I've ridden about 1000miles and changed the oil once.  The bike has ran fine since I got it. This morning, on the way to work, it lost power very gradually and I could barely maintain 50mph. At lunch I removed the air filter and it was oil soaked.  There was a puddle of oil in the bottom of the air box. What happened? Did I just delay the air filter change too long?  Is this amount of oil normal?  Can I prevent this by routing the crankcase vent hose to another location? Any help is appreciated. RangerBob

Title: Re: Oil in the air box and in the filter? Post by Reelthing on 06/08/07 at 10:13:10 Check your oil - is it over full?

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 10:15:21 If so, then not much.  It's right at the upper hash mark on the sight glass.

Title: Re: Oil in the air box and in the filter? Post by Reelthing on 06/08/07 at 10:24:27 and you checked it today right ? - why I ask is sometimes a failure in the petc0ck will let fuel run into the crankcase and filter area filling both and causing some rather serious problems with bearing surfaces other wise - there are drain tube(s) on the bottom of the air box you should open cap on now and then and drain - like at every oil change

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 11:02:39 I checked to oil today.  Right at the top hash mark. But, I have never drained the airbox.  I had no idea that such a thing was needed. I have no idea if the petcock is troubled.  I did have a fuel leak at the knob, but I put in a new O-ring and the leak went away.

Title: Re: Oil in the air box and in the filter? Post by Reelthing on 06/08/07 at 11:13:27 Likely the oil drains had never been drained - singles do huff and puff out of the breather tube a lot more than multicylinders - reason being there is no place for the air to go when the piston goes down except out the tube and back in the tube when it goes up - this tends to leave some oil behind in the airbox -  in a multicylinder a lot of the air just moves from cylinder to cylinder, so you need to pull the plug(s) on the rubber tube(s) hanging under the air box.

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 11:31:32 I just checked the drain tube.  It was completely full of clean engine oil. I think we may have found my problem. I'll let you know how she runs on the way home. Thanks for the help. RangerBob

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 14:47:48 Well drat. On the ride home it still didn't have any power. The low end is OK, but it runs completely out of steam on the top end.  In 5th gear it won't break 50mph. What gives?

Title: Re: Oil in the air box and in the filter? Post by verslagen1 on 06/08/07 at 15:16:42 You know you're supposed to hold the bike verticle while checking the oil, right?

Title: Re: Oil in the air box and in the filter? Post by Ed_L. on 06/08/07 at 18:39:03 All that oil in the air box could of soaked the air filter. Pull the filter and do a quick run around the block to see if it performs any better. A piece of 2x4 under the kick stand is a good way to get the bike close to level, then fill to the bottom of the sight glass.

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/08/07 at 19:36:15 I tried it with and without the filter.  No change. I washed the filter, blew it out, and dried it.  No change. The bike was verticle when I checked the oil.  However, it was full to the top "hash mark".

Title: Re: Oil in the air box and in the filter? Post by PhotoProf on 06/09/07 at 05:30:45 Is the drain tube you are referring to the one with a cap on it that hangs below the engine. I noticed this tube but saw that it had a spring-type clamp on it. Would it be better to just leave this tube un-capped?

Title: Re: Oil in the air box and in the filter? Post by verslagen1 on 06/09/07 at 07:58:08 I think the purpose of capping it and draining it when necessary is to keep oil off your back tire. Plus, wouldn't you like to know there's an issue going on with your bike?

Title: Re: Oil in the air box and in the filter? Post by justin_o_guy on 06/10/07 at 04:17:15 How old is the bike?Mileage? Guys, is it just me or is there a chance he is suffering from gas in the oil? Why is it running so crummy? Lost power slowly. Have you had a look at your plug? Maybe it slowly crudded up from the oily crap in the airbox being drawn into the cylinder.

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/10/07 at 11:47:25 The bike has 9600miles. I haven't checked the plug, but it starts & idles fine.  It also seems to run fine at 0-1/2 throttle. It only bogs down when I open the throttle up.  Even then, it doesn't run worse, it just won't pick up and run any faster.. It seemed to start running worse almost overnight.

Title: Re: Oil in the air box and in the filter? Post by justin_o_guy on 06/10/07 at 12:36:01 Someone asked if the slide might be sticking, & that sure sounds like a good question to me. Since it peaks & wont go past that level of performance, but the engine is running fine, just won't run any higher rpm. Hmm, RPM? I see it wont run past a certain speed in hiugh gear, what about lower gears, does the engine peak at the same RPM in each gear?

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/10/07 at 13:45:18 Justin The engine will rev to a certain RPM in each gear and then runs out of any additional power.  The revs will slowly climb past that point in 1st and 2nd.  As the forward speed increases and the mechanical advantage decreases, the engine can no longer pick up revs and my speed maxes out. What is a "slider".  I just took the carb out and was inspecting it for rust or contamination. Pretty clean inside.  Just a hint of red dust in the float bowl. BUT the black thinggy that goes in from the top will not move with reasonable finger pressure.  Since there is a spring in the top pushing down on this, I suspect that this part is stuck.  Is this the "slider"? Is there a fix? Thanks for you help.

Title: Re: Oil in the air box and in the filter? Post by tuxedo on 06/10/07 at 14:22:21 Yes, the black thingy that moves up and down as you're looking into the throat of the carb is the slide. It should move easily.  If not, it's not clean. To clean it, remove the top of the carb.  Remove the slide spring, remove the slide.  Clean the metal part with a clean rag and carb cleaner until it is operating room clean.   Reinsert slide, turn until the bump on the rubber gasket matches the one in the carb's groove.  Push gasket down into groove.  Put the spring back in.  Put the top back on the carb.

Title: Re: Oil in the air box and in the filter? Post by RangerBob on 06/10/07 at 15:31:38 I think you've found the problem.   This thread stared out with oil in the airbox, and now I see that the "slider" is really oily. That oil, apparently, caused the "slider" to stick.  It was stuck hard enought that I had to pry it loose.  Once it broke free, though, it moved OK. I cleaned the hole and the slider itself, and now it seems to move freely.  I'll put the hole deal back together and see if it runs OK. Thanks so much for the help! Ranger Bob.

Title: Re: Oil in the air box and in the filter? Post by bduff on 06/25/07 at 16:23:48 what was you outcome?  did you fix it?

Title: Re: Oil in the air box and in the filter? Post by geo on 06/25/07 at 19:41:09 Guys, I had this problem, but not nearly as bad. If you overfill the oil sump or lay the bike down, you will get oil in the airbox and carb. This will create problems. My problem was the carb piston became stickey with oil and the bike would not go into warp speed. (accelerate at higher RPM for those in Rio Linda). I had to remove the carb and clean the piston and its bore. This fixed the problem. This can also happen if you install a K&N air filter. I'm now at 12 SuperTrapp discs and can accelerate to warp factor 3. My rear Metzler is going away fast. ;D

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