Q: Engine running rough and overheats while in slow moving traffic or long stops.

asked by on

My "car" is a 2003 Kawasaki zx6r (636) w/ 31,000 miles. The bike ran a little rough when I bought it and was overheating (but had a low coolant level). I did a coolant flush and added the proper amount. Changed the oil, oil filter, air filter and spark plugs. Now the bike runs a couple degrees cooler but it's still running upwards of 220 degrees in slow traffic or at stops. The radiator fan does work. I set the idle speed to 1500 because it stalled under hard braking at times. While idling it sometimes "chugs" for a bit. While riding it has power but the power delivery feels choppy. Not harsh but noticeable. You can also hear that the bike is not running that smoothly. The bike is fuel injected and I don't know the condition of the fuel filter. I can find no oil or coolant leaks. Everything is stock minus a Yoshimura RS3 Stainless slip on. (Btw im from Manitoba Canada lol) 90210 is the only zip code I know by heart. The average temp here right now is 50f. Thanks in advance!

My car has 31000 miles.
My car has a manual transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Engine running rough and overheats while in slow moving traffic or long stops.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My van was missing and rough idling then I turned it off one day and the next day it starts then dies and some times it won't start

Hello, thanks for writing in about your 2001 Dodge Caravan. For certain, given your mileage and codes for these 2 components, replacing these 2 sensors is the minimum. Cleaning the idle air control valve, throttle body, and PCV valve should...

Q: Skipping, light rough idle, & smoking

Hi and thanks for contacting YourMechanic. Depending on what color the smoke is will determine what is happening with the engine. If there is heavy black smoke, then there is too much fuel in the cylinders and the fuel is...

Q: Idles roughly

Hey there. The intake gasket leaking will generally cause a lean fuel condition which can cause the idle to run high or poorly in the case of cylinders misfiring. The misfire may also be a result of of the intake...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.