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Steve_g
| Posted on Wednesday, August 17, 2011 - 12:04 pm: |
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Morning all... Curious if anyone has any insight to a specific problem or if it has to be a shop fix... The problem lies with a xb9r, lately the bike will no longer go into a high idle on start up, just a slow lob, but the problem also lies when slowing down. When the motor is warmed up or hot it takes upwards of 20 seconds to idle back down from highway revs. I did find a fractured cap on a hose barb off the draft tube, and repaired it but no change. The butterfly does close, I did make sure of that, other than that I'm at a loss. Any ideas? Thanks |
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Terrys1980
| Posted on Wednesday, August 17, 2011 - 12:15 pm: |
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If you've done a tps reset and set the idle properly I would start checking for intake leaks. |
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Two_seasons
| Posted on Thursday, August 18, 2011 - 04:52 am: |
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Needs new intake seals. http://www.americansportbike.com/shoponline/ccp0-p rodshow/17018-2.html I don't own an XB, so call Al or Joanne at American Sport Bike and ask if you need any other seals. There is also an intake seal tool listed on the linked page above. Helpful tool to have as these seals are a maintenance item. |
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Steve_g
| Posted on Thursday, August 18, 2011 - 02:15 pm: |
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The more I think about it, this sounds like the issue. I was hearing a very rapid chatter, thinking it maybe a lose bolt on the chin spoiler but nothing moves. When the bike is at just cruising down the road I hear it (in town @ 2500rpm), give it a little throttle or clutch it the sound goes away. Guess this add to my schooling,as I move into virgin territory. Guess a little reading is in order. Thanks for your knowledge! |
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Kalali
| Posted on Friday, August 19, 2011 - 11:06 am: |
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I'm not sure about XBs but in tubers (which have similar intake configuration) you can test for intake leaks by blowing propane gas around the areas where the intake manifold slides inside the heads while holding the engine speed around 2K RPMs. If the idle changes/drops then the seals need replacement. You can also use brake cleaner if you don't have a propane torch handy. Hope this helped. (Message edited by kalali on August 19, 2011) |
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Terrys1980
| Posted on Friday, August 19, 2011 - 11:21 am: |
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I've never heard of using propane gas but it's possible. I would use something less explosive like WD-40. |
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Sparky
| Posted on Friday, August 19, 2011 - 12:35 pm: |
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FSM recommends using propane to check for intake leaks. Be advised: brake cleaner attacks rubber, doesn't it? There's rubber in the manifold seals. |
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Kalali
| Posted on Saturday, August 20, 2011 - 08:00 am: |
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WD-40 probably works but is messy. As for the brake cleaner, point well taken but it evaporates almost instantly given the conditions. |
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Danair
| Posted on Sunday, August 28, 2011 - 10:27 am: |
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Mine does that if the idle is set to spec. 1/4 turn out on the idle adjuster and it works fine |
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Richsm2
| Posted on Sunday, August 28, 2011 - 11:40 pm: |
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wd 40 is a mixture of a solvent and minerial oil. fyi will freeze |
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