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Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 11419
Experience:  25+ yrs. experience
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We have an 05 r1 yamaha and just replaced coils and still

Customer Question

We have an 05 r1 yamaha and just replaced coils and still has no spark...any ideas???
Submitted: 1 year ago.
Category: Motorcycle
Expert:  Louie replied 1 year ago.

Hi and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, proposed preliminary try (if have not been done) is to attempt start again with the side stand folded up and check for the presence of spark.

While the sparkplug is removed, determine if there is fuel getting inside the combustion chamber.

Please post back results / observations of the above once done.

All other tests would require the use of a multi-meter.

Customer: replied 1 year ago.
Combustion. Chamber is getting fuel. Will attempt start with side stand folded up.... Ignition coils are getting electricity, 12.5V....did not try the kickstand... Will check that next and let you know...Thanks for suggestion. Will be Monday before we're back at shop.
Expert:  Louie replied 1 year ago.

Appreciate the post back and would look forward to an update Monday or when able.

I understand that there is IGN+12.5 at the red/black wire. Please also check for pulsating voltages at the other wires of the ignition coils; orange, gray/red, orange/green and gray/green when attempting to start.