Recent content by Why Z?

Pertsa - I doubt this is the exact same problem as me but just to be safe go to your ECU and there should be a blue - yellow wire hat attaches to one of those screws that holds the ECU on. Is it connected fully? (To the test of the blue yellow wire and wherever it goes?) Or is it disconnected...

Hi I have no experience on this but it sounds like you are on the right track to diagnosing it. It looks like you have ruled out FUel Pump, Clogged injector and Spark. It sounds like perhaps a bad connection going to the injector? Or, could your ECU be effed? Also, when you look back on it...

Being a new FSE owner and far, far away from the nearest GG dealer, I think it would be helpful to have a couple stickies on this forum. I have some ideas for ones that should be a sticky: 1) Blue/Yellow wire thread : this issue took me a while to figure out, when I did made a world of...

I answered my own question - yep- disconnected that thing at the plastic connector thing and it runs wayyyy better . It is a much healthier running bike. NO more popcorn backfiring on decel NO more random stalling when I least expect it NO more header glow. Overall the bike just seems to run...

Vinny, I am glad to hear you got the problem sorted out... Care to share what it was ? So those of us other folks can learn from it! I am happy you found the problem and are riding again... Without dropping $$$$ on a new ECU. Glad to hear a success story!

Update - bike has been running strong since! Still has some starting quirks and needs the throttle held part open to start and the bike is not much of a "morning person" but overall has been real good, and it's quirks are reliable so I know how to handle them ... I have a lot more confidence...

Ok... Then maybe your fuel mapping settings on the ECU? I am not sure it would explain the rev limiter kicking in issue however it sounds like it is still showing signs of a lean condition. Mine has no back firing on decel with wire disconnected and I believe it is stock mapping . Sometimes I...

Henrik- I *think* I have the same ECU as you in the 07 FSE, and Though I'd have to check, would suspect they might be the same with respect to this same kind of thing : (And mine came with 2 ECUs too) Look at your ECU, like where it is plugged in/how it bolts on: If it's like mine, There...

Hey, I can't speak to anything over '07 gas gas ... However, it has been my experience (and I am VERY little - 5'2" 120#) That any of the big full size dirt bikes, no matter how tney are on paper , can be made to fit any rider my size or bigger. Sometimes more work sometimes less. I currently...

Ton, Do you have your blue/yellow wire (the one that connects to a corner of the ECU, from under the tank) connected or disconnected? Others have reported differences in how easily it starts depending on if it's disconnected or connected (but seems to go both ways for different people) When I...

I solved the problem! It was not the air boot , I do not think. I did a test with carb cleaner and it is not leaking . Then I found that blue / yellow wire everyone is talking about. I disconnected it now, (left the other black wire plugged in) and, no more surging/jerking! No more popping...

I don't know what to tell you really. I would not be the authority on this .... However, I noticed on my 07 450 fsr when I replaced the oil filter with an aftermarket one, (one that actually came with a replacement o-ring) the replacement o-ring was different from the stock one. Basically...

Is this something to worry about or not? Valves? Is this popping on startup a sign I could be damaging something ? Paranoid to ride ... :-(

Hi, I disconnected the blue/yellow wire as I was asking in a earlier post and left the black wire. My main concern is upon startup, if I start with throttle closed, bike will randomly make a loud "GUNSHOT" noise when I hit the button. If I start with throttle at half-open or more, it roars to...

So pop the hoses off that take the coolant to the engine if that is what you mean? To just get the radiators? I have flushed prolly 1 gal Distilled water thru (sort of like with garden hose but with DW jug instead and 1/2 gal w half DW half vinegar - making sure the air bubbles get out by...