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Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 12038
Experience:  25+ yrs. experience
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When I try to start my bike, it runs for about 1 second then

Customer Question

When I try to start my bike, it runs for about 1 second then dies.
JA: Will the headlights turn on? Is the battery fully charged?
Customer: Yes.
JA: What is the model/year of your motorcycle?
Customer: 2007 ZX-6R.
JA: Are you fixing your bike yourself? What have you tried so far?
Customer: Yes, fixing myself. New battery, fresh fuel. It sat for 2 months
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 4 months ago.
Category: Motorcycle
Expert:  Louie replied 4 months ago.

Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, have you checked the spark plugs?

Customer: replied 4 months ago.
No, haven't gotten that far yet. The bike runs for about 1 second then dies. I discovered a hole in the tank a couple of months ago. I repaired that. Then I repainted it. The bike sat for about 2 months
Customer: replied 4 months ago.
The fuel pump sounds normally when I turn the switch on.
Expert:  Louie replied 4 months ago.

I understand.

Still, let's check/review the basics. Proposed preliminary tests (if have not been done) after the "...runs for about 1 second then dies...":

  • attempt to start again (even if it will not catch/run);
  • work the throttle as if flooding the engine;
  • carefully remove the spark plugs;
  • note if the tips are wet with fuel;
  • cautiously perform a spark test.

The above would determine if the issue is electrical/ignition (least likely) or fuel delivery/starvation (most likely).

Considering that "...sat for 2 months...", it would be to your advantage to attempt cleaning of the fuel path all the way to the injectors. Try adding injector cleaner, allow to settle/mix, attempt to start a number of times or until the fuel mixed with cleaner reaches the injectors.

The alternative would be to test the fuel pump output pressure and the injectors (out-of-the bike).

Customer: replied 4 months ago.
Ok sir. I will try these things.
Expert:  Louie replied 4 months ago.

Please post back how things turned up and/or should additional information be needed.

Customer: replied 4 months ago.
ok thank you.
Expert:  Louie replied 4 months ago.

Cheers.