Join Date: Jul 2011
Location: granada hills, ca
Stalling issue on 2006 Zx6r - at stop lights, TPS? Throttle body?
Problem - Bike dying randomly at stoplights and being REALLY hard to get started again.
Called a tow truck last night after spending quite a while trying to get the dumb thing started. The starter motor would go and the battery was plenty strong, but it just wouldn't kick or even cough/spit much. While the tow truck was coming i gave it af ew more shots, and by turning the throttle nearly completely open got it to cough and eventually start. It did not want to hold an idle at most lights; no issues at all (Even at low rpms, just off idle) once moving though.
a) I've been dealing with a hestitation on upshifts for almost 2 years. Roughly 5000-6000rpm, there is a massive stumble, and the bike rides more or less normal above that. Very irritating but I've been dealing with it.
I've taken it to both local and a Kawasaki dealer to try to fix it, to no avail. After 2 tries with the dealer, they came to the conclusion that it is related to the throttle body. They don't cite much evidence, and having them install a new one costs more than the bike is worth.
That said, independently I had previously thought the throttle position sensor might be the issue. The hestitation seems related to me moving the throttle without much effect. Based on reading this AM, the throttle position sensor and throttle body are kind of one and the same.
b) THis same Kawasaki dealer did a service on the bike (valve adjustment, plugs, basic tune up) about 500 miles ago, the last time I had it in to try to figure out the hesitation. Other than the hesitation not being fixed, the bike has run fine.
HOWEVER - there has been a low idle speed since the service. Previously i had just thought they moved the idle speed screw a bit, and slowed the idle, but i'm now thinking its related.
c) Its been very rainy the last few days, when the problem emerged. The bike has been rained on a bit. Drying the bike out hasn't seemed to help a ton though.
What do I do? COuld the TPS be at fault? What goes into adjusting/fixing/replacing that? (searches suggest its complicated)
I could see it being a vacuum leak. Any really common areas and/or hoses to replace to eliminate that? Anything else? Fuel pump?