GKTaylor Member 21 Member For: 16y 2m 22d Gender: Male Location: Pollok, Awhitu, NZ Posted 14/09/08 04:34 AM Share Posted 14/09/08 04:34 AM I have a standard 2003 XR6T with a K&N Filter, I am experiencing long power hesitation and continuous back firing in the higher rpm range, I have replaced the plugs with the NGK Iridiums with a 1.1 gap and all the coils, I have done the boost solenoid maintenance as described on here, I have just read, a fuel filter, this happens in D or held in the gears, ive even tried with traction on and off, there doesnt seem to be any odd sounds from the engine back, is there anything else I should be looking at next. Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 17y 9m 2d Gender: Male Location: SW Sydney Posted 14/09/08 04:39 AM Share Posted 14/09/08 04:39 AM Do you still have the little rubbers that hold the coils down on the plug? They sit inside the rocker cover garnish and have been known to go missing, when under full throttle the coils can jump off the plugs Link to comment Share on other sites More sharing options...
GKTaylor Member 21 Member For: 16y 2m 22d Gender: Male Location: Pollok, Awhitu, NZ Posted 14/09/08 04:45 AM Author Share Posted 14/09/08 04:45 AM (edited) Yes - these were pointed out in the instructions I got off here, all in there! Edited 14/09/08 05:15 AM by Buf-Phoon use the reply, not quote button for posts directly above Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 17y 9m 2d Gender: Male Location: SW Sydney Posted 14/09/08 04:56 AM Share Posted 14/09/08 04:56 AM hmm, that's a bit strange... did you say you had done the fuel filter or not yet? Link to comment Share on other sites More sharing options...
GKTaylor Member 21 Member For: 16y 2m 22d Gender: Male Location: Pollok, Awhitu, NZ Posted 14/09/08 05:05 AM Author Share Posted 14/09/08 05:05 AM (edited) No not yet - will pick one up tomorrow, can someone point me to a forum where it explains where it is and what is involved, I havent found a manual yet! no doubt its an inline filter with a hose at each end, I'll go have a look for it, slowly getting to understand where everything is, working on motorcycles is a lot simpler. Edited 14/09/08 05:12 AM by Buf-Phoon Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 17y 9m 2d Gender: Male Location: SW Sydney Posted 14/09/08 05:26 AM Share Posted 14/09/08 05:26 AM The fuel filter is on the passenger side mounted to the chassis rail. It has solid lines and they can be a pain to undo, especially when its close to the ground. Failing that, I would be looking towards the fuel pump itself, that's another posibility Link to comment Share on other sites More sharing options...
GKTaylor Member 21 Member For: 16y 2m 22d Gender: Male Location: Pollok, Awhitu, NZ Posted 14/09/08 07:46 AM Author Share Posted 14/09/08 07:46 AM (edited) Ah yes, I saw that when I was dragging myself around underneath changing the oil filter Edited 14/09/08 08:19 AM by Buf-Phoon Link to comment Share on other sites More sharing options...
Mike XR6T iTs alL DaRDy........ Donating Members 780 Member For: 17y 2m 4d Gender: Male Location: Adelaide Posted 14/09/08 02:07 PM Share Posted 14/09/08 02:07 PM gk I recon senna could be on the money you may have a fuel pump issue its not uncomon.try the filter first and c how u go Link to comment Share on other sites More sharing options...
Mike XR6T iTs alL DaRDy........ Donating Members 780 Member For: 17y 2m 4d Gender: Male Location: Adelaide Posted 14/09/08 02:10 PM Share Posted 14/09/08 02:10 PM buddyI hope your not still taking your car to that idiot mechanic hahahahaif it gets beond you and obviously himtake it to one of the sites sponer tunersthey all get great right ups and deal with thesecars day in day out. f king cars ay hehe Link to comment Share on other sites More sharing options...
GKTaylor Member 21 Member For: 16y 2m 22d Gender: Male Location: Pollok, Awhitu, NZ Posted 15/09/08 04:28 AM Author Share Posted 15/09/08 04:28 AM gk I recon senna could be on the money you may have a fuel pump issue its not uncomon.try the filter first and c how u go What sort of PSI should the factory pump be pushing, is it regulated at some point, if so what sort of PSI after its been regulated, I'll go looking for the pump tonight whilst I do the filter, general direction anyone, please dont say in the tank Cheers Link to comment Share on other sites More sharing options...
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