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  1. slow throttle response at 8000 rpm

    04-05 GSX-R600/750
    Yes, if you have an STVA/STP related fault, the ECU will leave your secondary plates uncontrolled. They will eventually be closed by the intake vacuum and at that point, it's like having a remapped throttle where WOT is 10% throttle or something like that.
  2. Engine wont turn over

    01-03 600 and 00-03 750
    See if you get a flashing 'FI' on the dash after a couple of start attempts. If not, assume you're OK electrically and proceed to make sure that you're getting fuel. Perhaps try using starter fluid; if it starts and runs for a while, assume you have spark and see why you're not getting fuel by...
  3. 2015 Gsxr 750 issues

    11 - Present GSX-R600/750
    "f1" is actually "FI" as in "fuel injection" and "`5d" is actually "Sd", as in "steering damper". That said, your problem is likely related to the charging system. Get yourself a service manual and carry out the relevant (to the charging system) tests, or search the site for "charging system...
  4. slow throttle response at 8000 rpm

    04-05 GSX-R600/750
    Well if it remains closed for some reason, then it's much the same as if something prevented you from opening the throttle, so yes. But why do you suspect the secondary plates in the first place?
  5. Stator Rectifier battery issue

    01-03 600 and 00-03 750
    +1 to the above. I didn't read the previous comment properly and failed to notice that it's working properly now. That's good, but again, if you haven't already, make sure the voltage stays above 14V as the engine speed rises. I suspect (in general, not in your case) that a bad connection...
  6. Stator Rectifier battery issue

    01-03 600 and 00-03 750
    Why didn't you use the connectors for the replacement parts? Note that the connections between the R/R, the stator and the rest of the system are very critical. High currents pass through there and the slightest resistance, resulting from an inadequate connection, will drop enough voltage to...
  7. 02 gsxr 750 problems please help! Dies when given gas!

    01-03 600 and 00-03 750
    Also, can you get it to run properly at higher loads? For instance, you mention that it will run ok in 3rd and at higher engine speeds; does that mean that once you manage to get into the upper portion of the rpm band, that it will pull properly when given gas?
  8. Fi light

    11 - Present GSX-R600/750
    If you don't see FI flashing, but the light is on, see whether a temperature or oil can icon appears alongside. The former would mean overheating, the latter low oil pressure. Of course in each case it might be just a matter of sensor malfunction, but both case should be treated as potentially...
  9. Quick throttle misfire

    GSX-R1000 General Forum
    Note that it probably is important to adjust the TPS dash with the engine running and warmed up. If you haven't done so, it's probably off. On the newer models, such as yours the TPS can also be adjusted without manual rotation I believe, via the SDS. Check the service manual for more...
  10. 02 GSXR 750 Bogging After 6000 RPM's

    01-03 600 and 00-03 750
    The tank, or rather the fuel pump assembly has a strainer and separate high pressure filter built into the pump housing (see figure in page 4-10 of the service manual). Have you reason to assume that these filters aren't in fact there? If you just expected a separate, in-line fuel filter,have...
  11. 02 GSXR 750 Bogging After 6000 RPM's

    01-03 600 and 00-03 750
    If none of these part replacements made any difference whatsoever to the problem and since it developed so suddenly with no codes thrown, have you considered checking the timing? Perhaps it has jumped a tooth or something like that.
  12. Fi light

    11 - Present GSX-R600/750
    The FI light is a general fault indicator, which might come on due to overheating, low fuel pressure or FI fault. Did you see FI flash on the dash at the time? If so search the forum for "dealer mode switch" and instructions on how to use it.
  13. Stator Rectifier battery issue

    01-03 600 and 00-03 750
    How did you measure the stator output if it was hardwired? Should we assume that the replacement parts now have proper connectors? As tsonksen says, if you're getting >14V at the battery, it should be charging, but make sure that you measure: a) with the bike fully warmed up (as you may have...
  14. Looses power randomly

    08-10 GSX-R600/750
    If you're going to replace the springs perhaps you should not bend the tab at the same time. I can't think of any specific danger but you don't want the switch to be actuated too soon. You might be able to test for the problem as follows: try shifting to first (with the engine stopped) and...
  15. 2015 GSXR 100

    12 - 16 GSX-R1000
    If the 'FI' appears regularly, especially if it appears after bogging at load, the bike must be switched to dealer mode before cycling power off and on, to see what the code is. Other than that, the usual problem in cases such as this, is a clogged fuel filter (either the strainer, or the...
  16. 2006 GSXR 750 with no intake air temp sensor.

    06-07 GSX-R600/750
    The sensor provides an important factor in calculating fueling. As to whether it's necessary, it depends on how you interpret the term. In its absence the ECU will assume a "reasonable" fixed ambient temperature, which will naturally be way off on hottest or colder days. The engine will still...
  17. 2015 GSXR 100

    12 - 16 GSX-R1000
    Has he told you how he knows they aren't coming on? They're not supposed to come on at low loads and perhaps not at all in neutral. Has anyone done a flow test on the fuel pump? Do you ever see 'FI' flashing on the dash?
  18. No start.....

    GSX-R600/GSX-R750 General forum
    Then you could probably bump-start it and you simply can't operate the starter for some reason. Could be a problem with the clutch switch, a failed starter button, a failed relay, a failed starter, or trouble with the wiring between them. You'll need to troubleshoot.
  19. 2015 GSXR 100

    12 - 16 GSX-R1000
    Try giving a bit more detail. So it just tops out prematurely, it doesn't cut out like hitting a rev limiter. Does that happen in every gear? How high does it climb at full throttle? Does the top engine speed change with gear?
  20. No start.....

    GSX-R600/GSX-R750 General forum
    Do you see 'CHEC' on the dash instead of the coolant temperature while in neutral, with the kickstand down, trying to start?
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