I've got a bike with a rusted gas tank. I'm too cheap to have it coated. Filters that work without a fuel pump have holes bigger than the idle jet. Got tired of it dying at red lights. I took apart a laptop hard drive and busted a chunk off the magnet that just fit inside the sediment bowl on the petcock. The rust seems to be at least weakly attracted. Doesn't die as much any more. I was gonna put a magnet in the tank, but thems is STRONG magnets. I got a vision of a spark when it grabbed onto the inside of the tank. I'm afraid to risk it;-) mike -- Return address is VALID but some sites block emails with links. Delete this sig when replying. .. Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer Wanted 12" LCD for Compaq Armada 7770MT. Bunch of stuff For Sale and Wanted at the link below. MAKE THE OBVIOUS CHANGES TO THE LINK ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/
Iron oxide is not magnetic. Put a fuel filter on the bike. About $3 bucks at the auto parts store. WIX 33011 is a good choice. It will catch all the rust from the tank. You probably have rust in the bottom of the carb bowls. Unless that is cleaned out too you will likely continue to have problems.
You can coat it yourself for $35-40. Check out the POR-15 website for a motorcycle specific kit. Seems like it's going to keep on giving you grief until you get rid of the rust. Eventually too, bad stuff is likely to happen to the bottom of the tank if there's water still in there.
Doubtful. Maybe your idle jets are partly gummed up? Have you actually found rust in the idle jets? Where have you found rust?
Seems to be WEAKLY attracted. That may be enuff. Put a fuel filter on the bike. About $3 bucks This is a 125cc bike. No way that thing will fit. It's 4" long Went to the parts store, nothing tiny enough. I put on one for a chainsaw, I think. The mesh is tiny, but the pilot jet is EXTREMELY tiny. With no fuel pump and zero pressure, I'm not sure a really fine filter will work at all. It will catch all That's why we clean it out regularly. Unless that is cleaned out too you will likely continue to have -- Return address is VALID but some sites block emails with links. Delete this sig when replying. .. Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer Wanted 12" LCD for Compaq Armada 7770MT. Bunch of stuff For Sale and Wanted at the link below. MAKE THE OBVIOUS CHANGES TO THE LINK ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/
Considered that a decade ago. Just couldn't bring myself to spend $40 on a $20 bike. Water is long gone. -- Return address is VALID but some sites block emails with links. Delete this sig when replying. .. Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer Wanted 12" LCD for Compaq Armada 7770MT. Bunch of stuff For Sale and Wanted at the link below. MAKE THE OBVIOUS CHANGES TO THE LINK ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/
Yes, I know they're gummed up...with rust/gunk... I've found rust in the tank, the sediment bowl, on the magnet, the fuel filter, the float bowl, Idle jet. -- Return address is VALID but some sites block emails with links. Delete this sig when replying. .. Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer Wanted 12" LCD for Compaq Armada 7770MT. Bunch of stuff For Sale and Wanted at the link below. MAKE THE OBVIOUS CHANGES TO THE LINK ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/
I dunno. Small fuel filters exist. I fitted one to my CB750 - it was an inch or so long. And even with a gravity fuel feed, they catch crap, as they're intended to. Plus you have a filter in the fuel tap, of course.
I had a $50 Kawasaki 70's dirt bike. I threw it away! Now I have a $450 '81 CB650 Honda with about $1500 in it. I LOVE IT. I'm the cheapest guy in the USA. I flushed the tank at a car wash, shook it with gas in it, and empty. Now it's fine, 'cept for the flash rust. I'm calling POR-15 tomorrow (it's about $40)...after the re-do. it's 2 old VW beetle plastic filters under it, one after the other (they're see-through). They fit all sizes of fuel hose. Auto Zone etc. knows about them. They're a fire hazard, so then it's a slim metal one for a permanent filter. Clean out your carbs, etc. and don't put so much crap on your posts...I AINTGOTTIME to deduct it. GEEEZ - what do you drive for a cage - a Yugo w/taped mirrors? and ohyeah, JBWELD for all the exterior seams...
If you are hell bent on putting a magnet in, or on the tank, you should be safe as to generate a current you need a moving magnet that is in close proximity to a coil of wire. The magnet isn't moving and there is no coil of wire so you are safe. Now if you cause a spark by static discharge or any other means, then all bets are off. pierce
Try different shops for paper filters. One will keep up with the engine if it has enough filter area. Do the necessary plumbing. Then put in new idle jets. Still I doubt that the stock filter will pass particles that would get stuck in an otherwise clean idle jet.
The POR-15 kit uses phosphoric acid, which is a little less active. With the phosphoric acid, I also threw some sheet metal screws in to help dislodge anything loose and shook the tank every few minutes while it soaked. You also want to be careful about any aluminum or allow parts such as petcocks. Probably safest to remove them and use plugs to seal it while you work.
I can get the POR-15 in a week, but I want to do my tank this weekend. Anyone have opinions on Kreem? I can get that right up the street... as far as filters, backpackers on Appalachian Trail newsgroups use the VW plastic filters to get sediment out of their mountain water. I think J.C. Whitney sells them for a couple of bucks...or you can use coffee filters. Just fill up the tank with gas and put it on a bucket (OUTSIDE) in the shade...tape a coffee filter to the bottom petcock hole, and watch the rust accumulate...
I've not ever tried Kreem, but have heard/read of various failures and successes. I did do my KZ650SR tank with POR-15 and am quite happy with the results. I documented my experience here: http://www.networksplus.net/n0nb/repairs/por15intro.html As Jack said, do it right--there are no shortcuts. - Nate >>
Don't know if they're still available, but at one time you could find, at a "real" auto parts store (not the ones for pimping up your ride) a small (approx. 1½"x1½") sedimentation bowl filter meant for gas lines. These were the kind with a glass bowl on the bottom (usually held on with a wire clip & screw). In addition it had a paper element at the top of the bowl. The one I installed on a car not only took out crud as small as very fine silt, but one could even drop a small magnet into the bottom of the bowl (belt & suspenders technique). The bowl could be cleaned out as needed, and the paper element replaced. At one time I even knew its AC part number...
I haven't seen one of those in years! About the best you can hope for is a clear inline fuel filter. Lots cheaper too. Here is a discussion with pictures. http://www.cbxworld.com/modules.php?name=Forums&file=viewtopic&p=29854 I see that the Wix is rated at 12 microns. http://www.wixfilters.com/filterlookup/ResultsPart.asp?PartNo=33011 and click on the part number. 1 micron is 0.0000394 inches Therefore: 12 microns = .0004728 inches or less that .5 thousands. An idle jet will easily pass that as idle jets are about an order of magniture larger. It is like dropping a 1 inch ball into a 10 inch pipe. Some have cmplained that the filter is physically too large. I was able to fit one on my bike and there just isn't that much room to mess with. I think that it could fit almost any bike. I am sure there is the odd bike out there that is just too small, so you can order up a nice bronze filter from one of the MC retailers in your area or online. Sometimes it is easier to order from the MC shop. No minumum order, tax is about the same or less than shipping and you get some free advice too. pierce
