Boov Posted May 24, 2009 Share Posted May 24, 2009 I just got back from my first XX Iron Butt, and it went great, except my '99 ran worse and worse the whole way. I'm loosing a cylinder or two at low RPMs and I slowly gain them back as the revs increase. I have to give it a ton of throttle so I don't stall it just to take off. It has okay top end, not quite it's normal self. Also, the tips of my stock pipes are turning Black, like it's running too rich or something. I threw in a ton of injector cleaner and that didn't help. Here's my guesses, in order of likeliness in my opinion. - Plugs - Clogged injectors - Loom needs the fix (although it's not throwing up the FI light) Ideas? Quote Link to comment Share on other sites More sharing options...
rockmeupto125 Posted May 24, 2009 Share Posted May 24, 2009 Progressively worse? Check your battery voltage. If its low, you are probably having charging system problems, and the low available voltage is causing gradually worsening symptoms. Most things that go wrong cause a problem all at once. Look at what you need to run. Air, fuel, and spark and compression. Air----a clogged air filter maybe. But if so you'd have better power and throttle response at lower rpm when air demands are lower, and less power as revs climb. You'd run rich as well. Fuel---a clogged fuel filter would make you run lean, not rich. Spark---A coil could be going bad....but I've never heard of a bad coil on an XX. Then there's the system voltage I've already mentioned. Compression---you'd probably know about this....not to mention that its an extremely rare occurrence on unmodified engines that haven't been totally thrashed. Quote Link to comment Share on other sites More sharing options...
Aurora Posted May 24, 2009 Share Posted May 24, 2009 Progressively worse? Check your battery voltage. If its low, you are probably having charging system problems, and the low available voltage is causing gradually worsening symptoms. Most things that go wrong cause a problem all at once. Look at what you need to run. Air, fuel, and spark and compression. Air----a clogged air filter maybe. But if so you'd have better power and throttle response at lower rpm when air demands are lower, and less power as revs climb. You'd run rich as well. Fuel---a clogged fuel filter would make you run lean, not rich. Spark---A coil could be going bad....but I've never heard of a bad coil on an XX. Then there's the system voltage I've already mentioned. Compression---you'd probably know about this....not to mention that its an extremely rare occurrence on unmodified engines that haven't been totally thrashed. +1 battery, R/R, stator. Quote Link to comment Share on other sites More sharing options...
greysnail Posted May 24, 2009 Share Posted May 24, 2009 I just got back from my first XX Iron Butt, and it went great, except my '99 ran worse and worse the whole way. I'm loosing a cylinder or two at low RPMs and I slowly gain them back as the revs increase. I have to give it a ton of throttle so I don't stall it just to take off. It has okay top end, not quite it's normal self. Also, the tips of my stock pipes are turning Black, like it's running too rich or something. I threw in a ton of injector cleaner and that didn't help. Here's my guesses, in order of likeliness in my opinion. - Plugs - Clogged injectors - Loom needs the fix (although it's not throwing up the FI light) Ideas? Fuel pressure regulator???? Quote Link to comment Share on other sites More sharing options...
Boov Posted May 24, 2009 Author Share Posted May 24, 2009 Progressively worse? Check your battery voltage. If its low, you are probably having charging system problems, and the low available voltage is causing gradually worsening symptoms. Most things that go wrong cause a problem all at once. Look at what you need to run. Air, fuel, and spark and compression. Air----a clogged air filter maybe. But if so you'd have better power and throttle response at lower rpm when air demands are lower, and less power as revs climb. You'd run rich as well. Fuel---a clogged fuel filter would make you run lean, not rich. Spark---A coil could be going bad....but I've never heard of a bad coil on an XX. Then there's the system voltage I've already mentioned. Compression---you'd probably know about this....not to mention that its an extremely rare occurrence on unmodified engines that haven't been totally thrashed. I think the battery voltage is fine. It restarted strong every time I shut it off, and the headlight was bright. Yes it did get progressively worse oer the last 800 miles or so. Tell me more about the fuel pressure regulator. Quote Link to comment Share on other sites More sharing options...
cbrxxquad Posted May 24, 2009 Share Posted May 24, 2009 I just got back from my first XX Iron Butt, and it went great, except my '99 ran worse and worse the whole way. I'm loosing a cylinder or two at low RPMs and I slowly gain them back as the revs increase. I have to give it a ton of throttle so I don't stall it just to take off. It has okay top end, not quite it's normal self. Also, the tips of my stock pipes are turning Black, like it's running too rich or something. I threw in a ton of injector cleaner and that didn't help. Here's my guesses, in order of likeliness in my opinion. - Plugs - Clogged injectors - Loom needs the fix (although it's not throwing up the FI light) Ideas? Fuel pressure regulator???? +100 , pull the vacumn line from the FPR and fuel will run out with it running. Quote Link to comment Share on other sites More sharing options...
Boov Posted May 24, 2009 Author Share Posted May 24, 2009 Fuel pressure regulator???? +100 , pull the vacumn line from the FPR and fuel will run out with it running. Where do I get one, and how quickly can I have it?! Quote Link to comment Share on other sites More sharing options...
Boov Posted May 24, 2009 Author Share Posted May 24, 2009 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? Quote Link to comment Share on other sites More sharing options...
redxxrdr Posted May 24, 2009 Share Posted May 24, 2009 Ron Ayers is not the fastest to ship. But they tell you that at the start. item 18 Quote Link to comment Share on other sites More sharing options...
Skull Posted May 24, 2009 Share Posted May 24, 2009 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? http://www.turbocity.com/product_info.php?...products_id=573 Quote Link to comment Share on other sites More sharing options...
cbrxxquad Posted May 25, 2009 Share Posted May 25, 2009 +1 turbo city, mine works so well that I pulled the pc and get great AFR's with the stock program. Custom headers and cans too. Cost more but worth it. IMHO., Quote Link to comment Share on other sites More sharing options...
Keith Posted May 25, 2009 Share Posted May 25, 2009 http://www.turbocity.com/product_info.php?...products_id=573 Is that the right one? The text says it's for a CBR1100 and an ST1300. :icon_think: Are they the same unit? Quote Link to comment Share on other sites More sharing options...
greysnail Posted May 25, 2009 Share Posted May 25, 2009 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? U dun have to turn it on,if it drips,then ur FPR is busted. Do take note while removing the FPR,there's a spacer attached to it.Reuse it with the new FPR. Once fixed,ride away and blast off,u'll be surprise to see the accumulated fuel in ur endcans. Quote Link to comment Share on other sites More sharing options...
spicholy Posted May 25, 2009 Share Posted May 25, 2009 I am looking for one also. Mine is not running correctly. Tips are very black. I checked every dealer in S.E. Michigan. None in stock. I think I will order the Turbo City unit. Skull, the Turbo City model is listed for 01-03 models. It should work on the ,99's shouldn't it? Never mind. I dug around a little and found the following unit for '99-'00 models. http://www.turbocity.com/product_info.php?...products_id=572 Quote Link to comment Share on other sites More sharing options...
mikesail Posted May 25, 2009 Share Posted May 25, 2009 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? http://www.turbocity.com/product_info.php?...products_id=573 Just one note to make. Turbo city is nearby, I've been there before and they have a very good reputation, at least in the turbo business. After talking to the owner on the phone about this FPR a while back, he believes that stock hondas are too lean, and thus his FPR's are set to increase the pressure a little, five percent if I recall right. Just keep in mind that his experience is with California bikes, your calibration might be fine with the stock unit. Quote Link to comment Share on other sites More sharing options...
cbracerx Posted July 12, 2009 Share Posted July 12, 2009 These symptoms sound a lot like how my 99 started running today... To test the FPR, you remove the vac line and then what? Quote Link to comment Share on other sites More sharing options...
cbrxxquad Posted July 12, 2009 Share Posted July 12, 2009 These symptoms sound a lot like how my 99 started running today... To test the FPR, you remove the vac line and then what? turn the key on if fuel runs out the fpr its dead Quote Link to comment Share on other sites More sharing options...
TitaniumBird Posted July 13, 2009 Share Posted July 13, 2009 my vote is for the loom fix, I've seen where it doesn't trip the FI light, it ties into so much, can cause all sorts of gremlins. Quote Link to comment Share on other sites More sharing options...
cbracerx Posted July 14, 2009 Share Posted July 14, 2009 my vote is for the loom fix, I've seen where it doesn't trip the FI light, it ties into so much, can cause all sorts of gremlins. I will look into that if the FPR does not do the trick, thanks. This bike is super low miles (5K) and always garaged, no rain, etc. Quote Link to comment Share on other sites More sharing options...
Rocktd Posted July 18, 2009 Share Posted July 18, 2009 my vote is for the loom fix, I've seen where it doesn't trip the FI light, it ties into so much, can cause all sorts of gremlins. I just went though the same thing! I Read all about the possible problems I could find. The FPR seemed to fit the best. I checked the FPR using a vacuum sucker tool. FPR would not hold vacuum. R&R FPR engine ran good for about 4 minutes. then engine started running rich on all 4 cyl. Long story/short engine oil was mostly fuel! When the oil got hot it would vaporize the fuel. Changed oil and filter, FPR and all is well. My 2 cents Chuck Quote Link to comment Share on other sites More sharing options...
JB4XX Posted April 18, 2013 Share Posted April 18, 2013 Anyone have a turbo city fpr they wish to sell?? Does not show as valid part anymore Quote Link to comment Share on other sites More sharing options...
XXitanium Posted May 2, 2013 Share Posted May 2, 2013 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? U dun have to turn it on,if it drips,then ur FPR is busted. Do take note while removing the FPR,there's a spacer attached to it.Reuse it with the new FPR. Once fixed,ride away and blast off,u'll be surprise to see the accumulated fuel in ur endcans. Do you need to check your oil for gas that has run down into the crankcase? Quote Link to comment Share on other sites More sharing options...
ironmike Posted May 2, 2013 Share Posted May 2, 2013 I pulled the vacuum line off the fuel pressure regulator, turned the key on, and drip .. drip .. drip. It makes sense that this raw fuel running into my intake would cause these problems. Thanks for the advice. I have it off and I'm looking for a new one. Suggestions? U dun have to turn it on,if it drips,then ur FPR is busted. Do take note while removing the FPR,there's a spacer attached to it.Reuse it with the new FPR. Once fixed,ride away and blast off,u'll be surprise to see the accumulated fuel in ur endcans. Do you need to check your oil for gas that has run down into the crankcase? Yes, fuel leaking past the rings will contaminate the oil. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.