I had a bad track day due to an issue I currently have with my track bike. I just bought the bike from Atlanta and the short time we interacted with the bike it never showed this issue. I rode it around my block a couple of times when I got the bike home and, again, it didn't act up at all. I started the Memorial Day track day with the bike hesitating or bogging. Almost like it was running on half the cylinders. I didn't even complete a full lap and had to pit in. The bike died right as I pull in to my pits. My battery being weak didn't help the situation any. I asked Racer Cafe if they might have any idea of what the issue might be. They asked if I had a Power Commander, which I do and removed it thinking it might of been faulty. I removed it and it's still doing the same thing, sounds like it runs on 2, or 3 cylinders. It idles on all four but as soon as you add throttle it starts to cut out and sounds really bad. My question is, has anyone owning a same bike or similar, experience this issue and what was done to resolve it?
Charge your battery. If the issue goes away and comes back after 20-30 minutes of riding and the battery's dead again it's probably the regulator.
regulators are commonly the issue. get a MOSFET one. whatever that is. that fixed our issues. some people remount to a windier location to help dissipate heat. also, I've heard that hard wiring them is helpful (because vibration at hookup points causes intermittent opening of circuit, confusing the system) good luck
Well, I know it's not the Power Commander or the Quick Shifter. Those are both off or disconnected and i still had the issue. I'm gonna try replacing the regulator. Process of elimination.
That's the initial step I'm gonna take when she comes out of the trailer. I plan on stripping all the plastics off and looking over all the electrical wiring for fraying or damage.
I did charge the battery up to 90% at the track and removed the PowerCommander before we tried again. Same results.
my 09 gsxr 600 did the same thing at barber at the last event. i was running on 3 cylinders up to about 6,200-6,500rpm then it ran on 4 in the higher rpm range. made it really fun mid corner in the rain! Mine is completely stock engine wise. No electronics at all so that wasn't an issue for me. I haven't had time to look at it much but when i do, I am going to start with plugs since its been a while since I have changed them and need to any way.
Most likely plugs, but check your oil and see if it's milky. There's a freeze plug in the head that pops out on the 600 sometimes.
Could be clogged injectors... Had my 08 GSXR 1000 street ride with 1800 miles do the same. Filled up with fuel, then out of no where started hesitating and bogging. One of the injectors got clogged up after filling the tank with fuel. Took the injectors off, soaked and cleaned in Lucas and Seafoam (just to make sure), ensured the injectors opened and closed as they should, then re-installed. Resolved the issue.
I went around my warm up lap before a race and the darn thing was bogging. Turned out too be my pit lane limiter. The best person too trouble shoot a GSXR is Mark Junge at MCJ Motorsports. He did it over the phone with Safety First and is always right. I'm going there to switch out engines after STT Road America Tuesday before Road Atlanta Cycle Jam June 6&7 BTW http://mcjmotorsports.com/
I don't have a pit lane limiter on it but did think my Power Commander had something to do with it. I've have met Mark before but he relocated his shop a bit too far from my location. Thanks for the resource though in the event I need to contact him.
Fuel pumps have been problematic on these bikes as well and the ethanol fuel hasn't helped that any. There is also a "filter sock" built into the pump that can get clogged if the fuel was dirty. Hope that isn't it but something else to check.
Thanks for all the input so far.... Here's my list of things to check, replace or repair from you guy's suggestions so far. 1. Charge and monitor battery 2. Check and/or replace regulator rectifier 3. Replace spark plugs with new ones. 4. Change oil 5. Flush and change old coolant with new. 6. Remove and clean fuel injectors 7. Test fuel pump
Well 4 and 5 aren't going to cause a misfire so I'd move them to just maintenance list. I'd go in this order: 1) Charge Battery 2) Start bike and check charging voltage to rule out rectifier 3) Replace plugs (and look for any wiring issues while apart like loose connections, etc) 4) Check injectors 5) Check fuel pump