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Bucking at freeway speeds

  #1  
Old 05-05-2010, 10:21 PM
RP3
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Default Bucking at freeway speeds

Hey there, I have an issue with my 2001 F4i. The other day I was cruising on the 202 at around 6k in 6th gear. Every few seconds the bike would buck back and forth like I was riding head-first into a choppy headwind. Still has excellent throttle response and power is as good as can be. I know with cars, a worn TPS would cause a condition like the one I have mentioned, but I was inquiring if anyone on here has had a similar concern. No FI codes to alert me of a TPS fault, any input would be appreciated!!!
 
  #2  
Old 05-05-2010, 10:32 PM
July 2010 ROTM
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were u low on gas? not saying this to be a jerk or anything, sometimes its the simple things... but i have no idea bout the tps. do u have the service manual yet?
 
  #3  
Old 05-05-2010, 11:59 PM
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Just try a new tank of gas, I think this is happening because of a sludge buildup, and it just goes through the engine. It's happened to me twice, but ever since then, I haven't had any issues.
 
  #4  
Old 05-06-2010, 06:44 PM
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202?? Arizona??
 
  #5  
Old 05-06-2010, 06:47 PM
RP3
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Just filled up with 91octane from QT, downloaded the service manual a couple days ago, and yes qsmith90 AZ haha East Val
 
  #6  
Old 05-06-2010, 07:10 PM
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Are all your connections, specifically on the battery, tight?

Believe it or not my bike would run fine but occasionally buck even on slower roads. It was the battery connections.
 
  #7  
Old 05-06-2010, 07:26 PM
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try 87-my bike ran like crap on 91 and 93, well, it ran ok but it feels more responsive and especially smoother with the 87 not a TON but enough to make me keep running it
 
  #8  
Old 05-06-2010, 07:42 PM
RP3
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87 huh? Hmm I'll give it a shot, and I'll check the connections. Thanks!
 
  #9  
Old 05-06-2010, 09:12 PM
July 2010 ROTM
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yeah in the owners manual it says 86, but 87 is the closest i got here
 
  #10  
Old 05-06-2010, 10:17 PM
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Mid grade all day baby!
 

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