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longdistancerider
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« on: January 03, 2011, 05:05:03 PM » |
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I have a question for the great minds of this site. I have a 1999 tourer with 40K. I recently change the air filter to a K&N (installed the foam insert). Since the changed, the bikes' rpms surge about 1k more than where I'm at when changing gears (the moment I apply the clutch). Specially from 3-4 and 4-5. I said to myself you probably pinched or bent a vacumm hose. So I took the petcock, gas tank and hoses off, again. This time with a great deal of care and placed them all back again. Same problem. Could anyone here please shed some light. Thank you in advance. Also I live in Wellington Florida, does anyone know a good Valk mechanic in this area...thanks!
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Pete
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« Reply #1 on: January 03, 2011, 05:09:21 PM » |
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Sounds like a lean condition.
Try putting the old air filter back and see if it resolves the issue.
If so then new air cleaner and richer mixtures. New larger jets/needles or raised needles and more open pilot screw.
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Chrisj CMA
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« Reply #2 on: January 04, 2011, 07:31:43 AM » |
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This "surging" sounds normal if you are not easing off on the throttle enough during shifts. I never just let off (roll it all the way back) during shifts.....I think that is harsh on the transmission and drivetrain over time. I just ease it back a tad to get the shift in, and sometimes I dont do it enough or quick enough and I get a rev like you are saying........
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Ricky-D
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« Reply #3 on: January 04, 2011, 09:34:44 AM » |
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I might add that a synchronization could be something to consider.
Nothing was mentioned about how the motor idles down at idle. (slow or quickly)
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« Last Edit: January 04, 2011, 05:02:30 PM by Ricky-D »
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2000_Valkyrie_Interstate
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longdistancerider
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« Reply #4 on: January 04, 2011, 10:58:32 AM » |
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Thanks to all for the replies:
Pete- I think you are probably right. However, why doesn’t the same problem occur to every other Valk that changed to the K&N filter? The bike was running great before.
Chrisj- I have been riding for over 30 years (the Valk is not a beginners bike- remember I said it surges when I shift). I don't think is the way I shift. But thanks anyway.
RickyD- There is no change on the idle. However, it does take a bit longer to hold the idle. But once is there @ 1K, stays there.
Thanks for all the replies!
Has every single Valk owner that changed to the K&N had this same problem????
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Chrisj CMA
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« Reply #5 on: January 04, 2011, 12:37:23 PM » |
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I have a K&N no problems. I didnt mean to offend you with my comment about the throttle and shifting. I too have been on bikes over 30 years and it does happen, without personally experiencing what you are describing its hard to rule out anything.
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Pete
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« Reply #6 on: January 04, 2011, 04:04:21 PM » |
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Pete- I think you are probably right. However, why doesn’t the same problem occur to every other
it does take a bit longer to hold the idle. But once is there @ 1K, stays there.
If you did not buy the bike new, someone may have changed pilot air setting, or low speed jets or both. You mentioned a "bit longer to hold idle", if it was high idle before settling to idle, that is another indication of a lean condition. |
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john
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« Reply #7 on: January 04, 2011, 05:50:00 PM » |
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" This "surging" sounds normal if you are not easing off on the throttle enough during shifts. "  |
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vrcc # 19002
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Ricky-D
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« Reply #8 on: January 05, 2011, 07:54:13 AM » |
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Such as a sticky throttle.
The subject of which is being discussed at this same time on this forum.
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2000_Valkyrie_Interstate
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longdistancerider
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« Reply #9 on: January 05, 2011, 12:38:24 PM » |
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Thank you all for the replies.
I've owned the bike for the past 4 years (one of 3 bikes I currently have- the Valk been the favorite) and do all my own maintenance. Again, no problem before the K&N filter was installed.
Why would a bike that has been running perfectly well for the past 4 years and has had all of the required maintenance, all the sudden, start to run lean because of the K&N (I did install the K&N foam cover as required).
Please don't tell me that is the way I shift, or that the throttle sticks or that the speedometer doesn’t work or that I'm hearing things or that I'm losing my mind (the last may be correct). I'm 62 tears old and have been riding all my life (yes, even before it became popular)
Thank you in advance for any intelligent replies. However, I'll take what ever you got :-)
Bob
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Kaiser
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« Reply #10 on: January 05, 2011, 01:54:24 PM » |
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Why would a bike that has been running perfectly well for the past 4 years and has had all of the required maintenance, all the sudden, start to run lean because of the K&N (I did install the K&N foam cover as required).
Because the K&N flows more air than an OEM filter. The fuel-to-air ratio changed. |
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Ricky-D
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« Reply #11 on: January 05, 2011, 02:00:58 PM » |
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Well Bob, I'm not going to start a "tit for tat" but I think that you are assuming too much!
First off, I feel that changing the filter does not have to be the cause of your problem.
Second, I feel that your assumption that it is now running lean is not based in fact.
I suggest looking for any, and all possible common sense reasons for what you describe and especially any mechanically connected causes of your problem.
One investigative method that was proposed to you earlier should be seriously considered.
Pete suggested placing the old filter back and see if doing so solves your problem.
Some nagging questions are: Is that the only change you made? Did you do anything else when changing out the air filter? Some times the most insignificant change can be the culprit. Did you disturb the air box? Are you sure the air box cover is correctly back in place?
You have to have a pretty thick skin some times on the forum and not let the little things bother you. And besides, you've not been riding that long so keep an open mind. We all can still learn here!
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2000_Valkyrie_Interstate
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longdistancerider
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« Reply #12 on: January 05, 2011, 09:00:14 PM » |
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Thanks for all the replies,
I solved the problem by ordering a stock new Honda filter and changing a couple of vacuum hoses. The bike runs like a top again. However, I still can't understand why most of the others that have changed to the K&N filter have not had similar problems. This has always been a great site for information. The only reason I can do my own maintenance is because of the manuals provided here. Thank you all for that!
I hope that in my quest to resolve the problem, I did not permanently damage any fragile egos.
Thanks again,
Bob
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Ken Tarver
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« Reply #14 on: January 05, 2011, 11:04:51 PM » |
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worked on a friends valk with simular problem.....2 cracked vacuum lines
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Ricky-D
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« Reply #15 on: January 06, 2011, 08:45:03 AM » |
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Sounds like a desmog would be in order!
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2000_Valkyrie_Interstate
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