Strange Dyna Behavior...
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
My guess is water in the electrical system.
Pull the fuse box cover on the left side of the bike (it pulls right straight off) dry it out with a hair blow dryer. Remove each relay & fuse one at a time and dry with dryer and then grease with dielectric grease and reinstall (permatex makes it and get it at the auto parts store). Dry start/run switches with hair dryer and sray with silicone spray. Dry ignition key lock & silicone spray. Dry plug wires & coils & silicone spray. Pull off seat and dry wire harness plugs and unplug one at a time & lube with dielsctric grease. Pull battery box cover, tighten battery cables and grease. Check battery ground strap on frame for tightness & grease.
Pull the fuse box cover on the left side of the bike (it pulls right straight off) dry it out with a hair blow dryer. Remove each relay & fuse one at a time and dry with dryer and then grease with dielectric grease and reinstall (permatex makes it and get it at the auto parts store). Dry start/run switches with hair dryer and sray with silicone spray. Dry ignition key lock & silicone spray. Dry plug wires & coils & silicone spray. Pull off seat and dry wire harness plugs and unplug one at a time & lube with dielsctric grease. Pull battery box cover, tighten battery cables and grease. Check battery ground strap on frame for tightness & grease.
Intermediate
Joined: Nov 2009
Posts: 47
Likes: 0
From: West Central Florida
In Brazil do you guys use an additive to your fuel? Ethanol from corn or other? I don't really think that would be it unless you fueled somewhere where only the locals have their fuel and that can be dicey, as I recall driving around for a month in remote sections of the Philippines in 2002.
I know both my manuals for my bikes specify to not use anything with methanol, as it says doing so can result in fuel system management components failure, engine damage and/or equipment malfunction. I doubt that's it since you have live there and most likely already knew that anyway.
I know both my manuals for my bikes specify to not use anything with methanol, as it says doing so can result in fuel system management components failure, engine damage and/or equipment malfunction. I doubt that's it since you have live there and most likely already knew that anyway.
Road Master
Joined: Jan 2006
Posts: 1,154
Likes: 3
From: Colorado Springs
I ran with an open air filter for awhile but I had a tendency to get caught in some major downpours here in Colorado. The filter would get saturated and the bike would do exactly what you described. Once the filter would dry out the bike would run strong again.
My vote is on the filter getting wet. Be aware though, the filter would have to be VERY wet for it to start running like crap so it could be electrical if the rain wasn't too bad.
My vote is on the filter getting wet. Be aware though, the filter would have to be VERY wet for it to start running like crap so it could be electrical if the rain wasn't too bad.
Check your plug on the throttle position sensor i had the exact same symptoms you describe after being caught in the rain its the one on the bottom of the ei unit i believe. i went through all of my plugs and put dielectric grease in them of course it was the last plug i checked and after that it was right as rain so to speak.
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Joined: Jun 2009
Posts: 53
Likes: 0
In Brazil do you guys use an additive to your fuel? Ethanol from corn or other? I don't really think that would be it unless you fueled somewhere where only the locals have their fuel and that can be dicey, as I recall driving around for a month in remote sections of the Philippines in 2002.
I know both my manuals for my bikes specify to not use anything with methanol, as it says doing so can result in fuel system management components failure, engine damage and/or equipment malfunction. I doubt that's it since you have live there and most likely already knew that anyway.
I know both my manuals for my bikes specify to not use anything with methanol, as it says doing so can result in fuel system management components failure, engine damage and/or equipment malfunction. I doubt that's it since you have live there and most likely already knew that anyway.
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