2005 r6 misfire - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 15 (permalink) Old 01-14-2017, 02:04 AM Thread Starter
My R6 eats me.
 
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Question 2005 r6 misfire

First off I apologize for being the guy with no posts asking for help. I have never had issues with my r6 until now.

I have made the mistake of turning my key flipping the kill switch to run and before letting the fuel pump prime I try to start the bike. Usually when this happens I have to push start the bike, reasons unknown to me (not a big motor head). Normally starts and runs no problems. About a week ago I did the same thing and it was giving me trouble but eventually started but has a "growl" at idle and under load, it's constant.

I have since replaced the plugs, got a brand new K&N air filter, and added fuel injector cleaner and rode around a bit with it in. The problem persists. The bike is throwing no codes. The exhaust is smelling like gas. I am going to do a compression test on it today once the kit comes in the mail and if those all check out OK I will replace my coils but after that I am lost in the sauce. Anyone had similar problems or have suggestions to try and narrow it down before I have to let my baby go?

Specs: 2005 r6 no mods besides a slip on. When I bought the bike the mechanic shop explained he had to rebuild the motor so should run great and it did for about 2 years. Odo is like 22k but 18k prior to the motor swap.

Much love & peace

Travis
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post #2 of 15 (permalink) Old 01-14-2017, 06:31 AM
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Re: 2005 r6 misfire

Spray water on the headers while it it running to see if one isn't getting as hot. If one is cooler, swap the coil with one of the other ones and repeat the test to see if the problem follows the coil, or stays on the same cylinder


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post #3 of 15 (permalink) Old 01-14-2017, 06:44 AM Thread Starter
My R6 eats me.
 
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Re: 2005 r6 misfire

Right on! Did not even think of that. Great advice I will do that today along with my compression test. Thank you
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post #4 of 15 (permalink) Old 01-14-2017, 07:04 AM
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Re: 2005 r6 misfire

Do it before the compression test.


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post #5 of 15 (permalink) Old 01-16-2017, 03:44 PM Thread Starter
My R6 eats me.
 
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Re: 2005 r6 misfire

Quick update: I got the tester in the mail and per your suggestion i warmed the bike up then did the water test on the headers. #4 was cold! I switched the coil stupidly to #2 instead of #1 and let the bike cool down. I did it again and #2 was still hot but i found it was from the #1 & #3 headers heating it up because it was much less hot than 1,3,4 after switching the coils. Anyways long story short a nearby cycle shop had a coil. $75 later my bike is running even better than before! I'm sure its not much longer till the other 3 go out as well. Anyways I wanted to to thank you for your suggestion it is greatly appreciated, it saved me alot of time and money!

PS: don't buy compression testers under $75 absolute garbage!!

Peace & love
Travis
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post #6 of 15 (permalink) Old 01-17-2017, 05:55 AM
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Re: 2005 r6 misfire

I'm glad it worked out for you bro. If i were you..start saving up for a set of backup coils. Usually once 1 goes, the rest follows. Like a damm curse lol.
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post #7 of 15 (permalink) Old 01-17-2017, 06:57 AM
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Re: 2005 r6 misfire

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Originally Posted by tones160 View Post
i'm glad it worked out for you bro. If i were you..start saving up for a set of backup coils. Usually once 1 goes, the rest follows. Like a damm curse lol.
this

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post #8 of 15 (permalink) Old 01-17-2017, 05:15 PM
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Re: 2005 r6 misfire

I have one of the tech bulletins yamaha put out in 2003 for the coils. you wouldn't believe me but the dealer price for the coils is $14 ea.
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post #9 of 15 (permalink) Old 01-18-2017, 03:44 AM Thread Starter
My R6 eats me.
 
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Re: 2005 r6 misfire

Hopefully uncle sam will get my tax refund sooner than later then! I will be investing in all new coils and likely a new clutch. The advice is greatly appreciated. Wish I could use those 2003 r6 coils in mine!

Peace & love
Travis
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post #10 of 15 (permalink) Old 01-18-2017, 07:08 AM
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Re: 2005 r6 misfire

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Originally Posted by yamahacrazy View Post
I have one of the tech bulletins yamaha put out in 2003 for the coils. you wouldn't believe me but the dealer price for the coils is $14 ea.
Fak...i paid $150 for a set last year >_<.
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