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drewladams

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    V11 LeMans

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  1. drewladams

    drewladams

  2. A 3.000 Kohm resistor tells the engine it is 77 degrees F. My electrician friend set me up with one. not much to it. Temp fix until the part comes in. Zero reading on the old one. I suspect the prior owner flung the airbox accross his garage at a frustrating moment.
  3. Great result. The perplexing thing to me is the symptoms manifested on the one cylinder. Would never have suspected the temperature sensor - or is that how they all work? No idea, but I know it was backfireing out of the left side because I took the airbox off and could see and hear it. Every time it backfired you could feel it in the throttle grip. Yes, very strange indeed, but thankful it is fixed!
  4. Thanks Kiwi-Roy, that is exactly what we did. My buddy the electrician helped my install a resistor in place of the sensor, so the bike thinks it's 80 degrees. FIXED IT! Runs great. So the air temperature sensor plays a big part in telling the computer the mixture to use, and at zero resistance, by V11 thought it was 120 degrees outside, and leaned the mixture accordingly. Thanks everyone for all your help. My sanity has returned, and my wife and kidds are happy for that!
  5. Thanks for the offer, fotoguzzi. I have cleaned the injectors, and swapped them left-right(to see if the miss follows). Bike is now back together, and waiting for an air temperature sensor. One I get that, I will set the TPS back to where it should be at 525 mV give or take, and take it for a ride. If it still doesn't run right, I will take my happy ass off to the Harley store for a TPS ($42 american dollars). But I am hoping that the air temperature sensor (broken) is going to fix this thing.
  6. Digital multimeter. Am also in the process of removing the throttle bodies and injectors for a good cleaning. I will swap the injectors-left to right, to see if the miss goes to the right side. BEWARE...the screws holding the injectors into the throttle bodies, and the screws holding the throttle bodies to the brackets have RED lock-tight. UM BASTERDO! Pretty sure I am the first one to take them off. One prior owner. (Best friend-died last year)
  7. Pulled the tank, checked all the sensors. The air sensor in the airbox shows ZERO resistance. Perhaps this is the cause of the lean condition. If the default is, say 0.102 Kohm, the engine thinks its 125 degrees and leans the mixture, this could explain the spitting and sputtering at around 3K. I will replace it and see what happens. At least I may FINALLY be on to something!!!
  8. Air screws open to one full turn, and tuned per Greg Bender, Guzziology procedure. The less voltage at idle, the worse it runs. At 525mV and below it is unrideable. At 625 mV at idle, it still spitts and backfires, but not as bad-often. The more voltage at the TPS, the higher in the RPM range the misfire takes place (most of the time) At 625mV the misfire is at around 2800-3200RPM. Pulling the tank this weekend to have a look at all connectors-hoses-connections ett. etc.
  9. The TPS at idle is now at 635 mV. The sneeze has moved up ro about 3200 RPM and is more manageable. The bike is now rideable but not as it should be. Going to pull the tank this weekend and replace all the fuel line inside the tank will replace the TPS with the Harley unit. Reset the throttle body sleeves, they are just fine. Cannot find an intake leak anywhere. The search continues.
  10. Battery voltage ok, spark plug lead resistance ok. Re checked the valves, and re adjusted the TPS. The intake boots look like brand new. Clamps are tight. No apparent intake leak. I will get the starting fluid out and see what I can make it do. Horrible backfiring in the left cylinder between 2000RPM and 3000RPM. When I pull the TPS electrical connecter, it will not run well below 3000RPM, but does not pop and backfire. When I adjust the TPS mV to over 600 mV at idle, it gets better but does not go away. Seems to move the stumble up the RPM range. So, it must be running very lean, and pulling the connector and increasing the mV to the TPS richens the mixture masking the lean condition. I will pull the intake boots and check the throttle body shafts. After that, it looks like I am going to put it on a trailer and take it to a dealer. I have never been so frustrated with a motorcycle. Like trying to ride a sneezing kangaroo.
  11. Valves were adjusted-checked in the spring, but I will check them again. Bike only has 14,000 miles. I will swap spark plug wires and see what it does. But it pulls so strong above 3500 RPM all the way up to red line. Just unridable between 2000-3000 RPM. It nearly blows the left throtle body off backfiring into the airbox on that side. And it came on all at once...
  12. Have a 03 V11. Ran great all summer. Let it set for a month while I took the BMW to Montana and now it will not run between 2000-3000 RPM starts and idles. Runs good over 3500. Great wide open. Left cylinder pops and backfires, spits and sputters. Throttle bodies have been synced, TPS adjusted to spec, new plugs, fresh gas. No luck. Just the left cylinder runs poorly and backfires. When I unplug the TPS, the backfire goes away, but of course it will not run below 2000 RPM, but the left cylinder gremlin seems to go away. WTF? When I adjusted the TPS, the voltage seemed to increase in a smooth linear fashion as I rolled the throttle to W.O. Did not appear to jump around, or show any sign that it was not working. Any suggestions? If it is a bad TPS, why just the left side?
  13. Just purchased an 03 LaMans. Mine was doing the same thing. When hot. Always downshifted fine. Upshifts seemed to find false nuetrals. The prior owner had the shifter spring replaced right before I purchased it. Carful inspection revealed that the shifter linkage was not adjusted properly. The shift lever was contacting the starter cover during upshifts, preventing a clean and complete shift. Also, the eccentric was not adjusted properly. The shift lever had free play when moving it down, but absolutely none when moving it upward. I adjusted the linkage and eccentric, and now it shifts like butter.
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