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Discussion Starter #1
Hi I'm new to the Forum I'm hoping to pick up a Grom this weekend I was talking to the dealer and he said that he has had 3 come back with blown heads from running too lean from people modifying the airbox so they have to check for tampering and it voids the warranty if any bolt is removed. That worries me because one of the first things I was planning on doing was modding the airbox, also I was thinking about a Two Brothers S1R exhaust for it. Would this lean it out too much and should I get an EFI controller of any sort? I'm new to tuning and motorcycles in general I'm hoping to make this my first and enjoy it. Thanks in advance guys.
 

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Discussion Starter #3
That's what I was thinking just unhook the battery for a few minutes and that will reset it right? I think the guy I was talking to had something against Groms he was saying he "didnt understand why there was such a cult following and why people try to make them sport bikes, if they want sport bikes they should buy a bigger sports bike."
 

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Thanks, that is reassuring, another novice question here but would there be any gains speed wise from those two minor mods?

and I'm not sure that is how he worded it, I just kinda assumed he meant the cylinder head.
 

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I did uni filter on throttle body and full yosh exhaust. Mine def ran very lean.so i bought ejk tuner and fixed the problem.
 

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I will be doing re-lubing my chain this weekend. I guess I should take my spark plug out and check it out then too. Now which plug on the motor is the spark plug? Also, should I unplug my battery and replug it in to do a reset like some say? I recently installed the KNR1100 and removed the airbox.
 

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Will a regular socket fit it? I just pull the rubber piece off it? Only spark plugs I have ever removed are on my old truck and those just pulled off if I remember right. Not sure if bikes are the same way.
 

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Same. Just yank the plug wire & cap off and unscrew the thing. Also I don't think simply disconnecting the battery resets the ECU, there is a special procedure in your manual.
Ok, I'll read into that then. Is that supposed to recalibrate the air/fuel mixture ratio or something?
 
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