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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Fuel in my Airbox? /cgi-bin/YaBB.pl?num=1239117649 Message started by High-Def on 04/07/09 at 08:20:49 |
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Title: Fuel in my Airbox? Post by High-Def on 04/07/09 at 08:20:49 Lately when I park at night, fuel is getting into my airbox. This in turn is getting my airfilter wet with fuel. When I open it all up, take out the air filter, let it all dry out, it starts right up and runs great. I ride to work or home (15m) by the time I get there the airfilter is wet again and the bike seems starved for air. So I open it back up, let it dry, and so on. Last weekend I didn't take the bike out. It sat for 2 days and had so much fuel in the airbox it was pouring out when I stood it upright. Seems it might be a simple soulution to replace the airfilter so it can breath but that might not solve the fuel getting in there issue and just waste another airfilter. Anyone experience this? Suggestions? Oh it's a 2001 LS 650 everything else has been great, I love my bike :'( |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/07/09 at 08:59:19 Danger will robinson danger! Fuel in the airbox is not a good thing, especially when it's happening overnite. Your petcock has failed. This should stem the flow no matter what. Either the diaphram is leaking and gas is flowing thru the vac line and thank god you are parking uphill cause it could go the other way into your crankcase. Check for gas in the vac line. Or your float valve has also failed and your carb is over flowing into your airbox. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 09:45:09 213225243B3630323966570 wrote:
Thanks for your response. What will this tell me. Petcock or float? |
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Title: Re: Fuel in my Airbox? Post by T Mack 1 on 04/07/09 at 09:55:41 03222C23660F2E2D4B0 wrote:
Thanks for your response. What will this tell me. Petcock or float?[/quote] Gas in the vacuum line (on the back of the the petcock) will show if the rubber diaphram in the petcock failed (has a hole or tear) and is letting fuel seep pass. |
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Title: Re: Fuel in my Airbox? Post by Reelthing on 04/07/09 at 09:58:00 Fuel in the vac line that runs to the back of the petc0ck will be a failed petc0ck diaphram - likely a really good idea to change the oil any way - unless you're running the bike with the lever set to PRI - this bypasses the vac cutoff in the petc0ck |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 09:59:34 760F6F43414913220 wrote:
Thanks for your response. What will this tell me. Petcock or float?[/quote] Gas in the vacuum line (on the back of the the petcock) will show if the rubber diaphram in the petcock failed (has a hole or tear) and is letting fuel seep pass.[/quote] Ok, so just leave the vac line connected to the petcock, disconect the vac line from the carb and NO fuel should be in there...right? If there is then the petcock has failed...correct? Again thanks for the help. Much appreciated. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 10:18:33 Ok so I checked the vac line (cracked) it was wet with fuel but no fuel in it. I replaced it anyway. The airbox is dry, it started right up. Tonight will tell the tale. I'll ride it home and watch it all night. Fingers crossed no fuel in there in the am. Wish me luck. |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/07/09 at 10:35:10 check for fuel in the vac line and watch your oil level closely. you don't want gas in your oil. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 10:48:54 796A7D7C636E686A613E0F0 wrote:
Sorry, I feel like a noob. We're talking about the same vac line as before right? The one on the back side of the petcock? How would fuel get in my oil? I can see the oil through the window, how will I know if it gets in there? |
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Title: Re: Fuel in my Airbox? Post by Yonuh Adisi on 04/07/09 at 11:06:29 The fuel can get into your oil by flooding the cylinder and seeping past the rings into your crankcase. Drain your oil and if it smells like fuel, then it is in your oil. Your oil level mysteriously rising will also tell the tail. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 11:11:58 4771706B765F7A776D771E0 wrote:
Ok if there IS fuel in my oil and I change it is there anything else I need to look for? Has lasting damage been done? |
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Title: Re: Fuel in my Airbox? Post by Gort on 04/07/09 at 11:36:48 You shouldn't even start that engine if you suspect fuel in the oil. Premature parts wear will be the result, and or even total parts failure. Better to first resolve the problem, then dump the oil & change the filter if you've determined fuel might have gotten into the oil. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 11:52:02 407375697473010 wrote:
Ok I'll leave the bike here at work, have the ol'lady pick me up and do the oil change in the am. I think I fixed the issue with the vac line (it was cracked but no fuel in it, changed in anyway as it was wet like it DID have fuel in it). I guess after the oil change and new air filter I'll just need to watch it to make sure it's not the float valve...right? :-/ |
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Title: Re: Fuel in my Airbox? Post by cowspotter on 04/07/09 at 12:09:36 I don't think you understand fully. The fuel is in the vacuum line not because the vacuum line is bad, but because the petcock is bad and is leaking fuel into the vacuum line. You are going to need to either replace the petcock with the same petcock, or replace it with the raptor petcock which will be an on/off/reserve style instead of the current reserve/on/prime style. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/07/09 at 13:33:02 darn I thought I had it covered. To make things simple, what is the best way to determine if it is a bad petcock or bad float valve? Thanks to all who have helped already. |
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Title: Re: Fuel in my Airbox? Post by Reelthing on 04/07/09 at 14:36:48 if you have fuel in the vac line - ever - the diaphram in the petcock has had it |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/08/09 at 06:58:42 Got it. Sorry was a little slow yesterday. Ordered the Raptor petcock, pulling the tank, changing petcock, oil, oil filter, air filter. That should cover it right? BTW, thanks alot for all the help. I really appreciate it. |
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Title: Re: Fuel in my Airbox? Post by DavetheDog on 04/08/09 at 07:27:27 587977783D547576100 wrote:
Now that you have a new vac line installed on the petcock, at least you know if was dry when you put it on. To make it simple… disconnect the end of the vac line that connects to your carb. If it is wet with gas, your petcock is bad. Replace it. Get the same one or get the raptor that many people here seem to like. If it is not wet than that is not the problem. The petcock has a diaphragm in it. When the engine is running the there is a vaccum created inside the hose that pulls on the diaphragm, opens a valve and allows fuel too flow through the petcock. If there is fuel in the vac line… the diaphragm is leaking. (see first paragraph). If it is okay, the problem is probably with your float valve. Maybe it is not adjusted correctly or the float is filled with fluid. Sounds like the valve is not closing and gravity continues to pull fuel into the bowl and the extra fuel is overflowing into your air box. If this is the case you will most likely need to disassemble the bottom half of your carb and do some inspecting/tuning/fixing. I suggest: 1. Buying yourself a clymers manual. 2. http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1180437249 3. http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1191899985 4. Fully understanding what your about to do/fix before you go about doing it and risking more damage. Now this is all new to me as well but the guys on this forum are great. I am sure they will correct me if anything above is incorrect. |
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Title: Re: Fuel in my Airbox? Post by daweise1 on 04/08/09 at 07:27:35 I know I'm late to the party, but there is another possible source to fuel in one's airbox..... The tank itself is leaking and running down the frame....... How do I know you ask???? next person that looks for a fuel tank to play with will find out for sure, but the mounting bracket weld to the tank seemed to have failed on mine....... That was 8 months ago and the Harley replacement should FINALLY be mounted this weekend.... ;D |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/11/09 at 08:35:24 Ok, The bike was down for a couple of days while I was waiting for my new petcock (the Raptor 660 one). While it was apart I did the seat lift in prep for my winter project (removing the battery box, going to a cone or kamakazi filter and moving the battery into the old airbox). I also fixed the speedo rattle. I'm installing the new petcock today and getting ready to change the oil and filter as I'm pretty sure there is fuel in there. It is recomended to drain the oil HOT. I was also told not to start the engine utill the oil was changed do to the fuel in the oil as it would damage parts. So my question is, run it or don't run it before draining the oil? |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/11/09 at 08:56:01 usually you do it hot so all the contaminates are suspended and go out with the oil. in this case, starting with diluted oil will cause more problems than leaving a few contaminants in. change it cold. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/11/09 at 09:52:35 766572736C6167656E31000 wrote:
Gotcha. Just in time too. I just got the new petcock on and the tank reinstalled. Time for that oil change. ;) |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/11/09 at 11:40:26 OMG what happened!? I did everything right I thought. Petcock seems to be working fine. I did the oil change, started it up and then POP! Is this MAJOR? Do I just need to order the new cover? How did this happen? WTF? Please help. Thanks. http://i258.photobucket.com/albums/hh270/HiD3F/Bike/04-11-09_1131.jpg http://i258.photobucket.com/albums/hh270/HiD3F/Bike/04-11-09_1132.jpg |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/11/09 at 11:45:24 Oh oh!, did you put the oil filter in the correct way? You're going to need a new cover. then should be ok. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/11/09 at 11:46:56 Ok, thanks for the quick response. I'm freaking out right now. I'll double check everythig again. Update: Yep put the oil filter in backwards. SOAB! Now this is gonna cost me an extra $42.79. My ol'lady is gonna kill me. I guess I'll know better next time. :( |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/11/09 at 12:00:20 It's happened before http://suzukisavage.com/cgi-bin/YaBB.pl?num=1211091490/0 |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/11/09 at 15:22:51 Do you guys have a good reliable online source for parts? This is the part # 16512-24B00 Here's the deal, I ordered it from my local dealership at a cost of $49.26 and it won't get here till Friday (maybe) the order doesn't go in untill Tuesday. I then got smart and looked up the part # myself and looked online. After a short search I found this: https://www.oneidasuzuki.com/store/cart.php?mode=checkout 3 day delivery for $11 cheaper? :o I'm thinking of cancelling my order and getting it online but am not sure if it is a reputable site/buisness. Do you use anyone imperticular? |
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Title: Re: Fuel in my Airbox? Post by dr1445 on 04/11/09 at 15:33:46 perhaps a local welding shop that does aluminum welding can save you a few $. |
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Title: Re: Fuel in my Airbox? Post by marshall13 on 04/11/09 at 15:35:35 it's a dealership.... some really slam for parts, others are more reasonable... 20-odd years ago, the local honda dealer in rockland county ny charged almost double what a dealer 20 miles away in NJ did... needless to say if i needed much more than an oil filter or o-ring, i drove the 20 miles..... some dealers are more parts/accessories oriented than others... in miami, you can find dealers that barely stock more than filters, and others with huge inventories of parts.... you just happened to find the dealer that stocks, and is willing to take the risk that another sale may come along before his kid goes to medical school, so he's not going to try to make the first years tuition off your filter cover....lol |
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Title: Re: Fuel in my Airbox? Post by verslagen1 on 04/11/09 at 15:57:32 bikebandit $28 not inc shipping and they are usually fast. I have an old one that will need polishing |
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Title: Re: Fuel in my Airbox? Post by diamond jim on 04/11/09 at 16:30:56 I ordered gaskets on Sunday night. Got them yesterday (Friday). That's my only experience with Bike Bandit. I was pleased. |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/12/09 at 11:44:45 Gatcha, I'll check out bike bandit. Thanks |
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Title: Re: Fuel in my Airbox? Post by Digger on 04/13/09 at 21:26:07 High, Don't get too down on yourself. You may think that there are a lot of smart mechanics on this board, and you would be right. However, 98% of the smart mechanics here have learned by making mistakes. The point is never to make the same mistake twice! Good luck! |
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Title: Re: Fuel in my Airbox? Post by kennycreed on 04/13/09 at 21:46:46 :)It's a grand site with a more than helpfull fourm, It's the only place I know that you can learn from other's mistakes, everything has been tried the wrong way once by somebody :-? :-? :-/ |
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Title: Re: Fuel in my Airbox? Post by High-Def on 04/14/09 at 11:53:28 Thanks for the kind words. I'm am not discouraged. I learned my lesson. Just glad it wasn't too costly a mistake. My new cover should be in Friday. I'll let you guys know if she's purring like a kitten. And thanks to everyone who kicked in already. I also did several minor mods to the bike while it was apart (thanks to the people on these boards). :) Good stuff. |
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