Slow Throttle Response? - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 46 (permalink) Old 12-10-2012, 09:20 AM Thread Starter
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Slow Throttle Response?

I may have a problem with my R6 that has been bothering me. It is winter now so I don't get to ride to really check it out. Any help or ideas is appreciated.

Problem:
I started my bike up a couple of weeks ago just to rev it up before I pulled the battery for winter charging indoors and noticed some, not a lot, but some hesitation in the revs from idle up to about 6500 and then it would take off. Also in the quick bursts of reving - I know it wasn't good but I didn't let the bike warm up first. I also noticed that after a long rev up to 12K plus RPM the next rev would stutter. I think it is probably the sea foam and octane booster since I didn't measure exactly I just poured in an estimated guess with the fuel. My guess is I'm running too rich with the additives in the fuel but have heard this could be a TPS problem. There isn't a delay from the twist of the throttle to the raise in RPM, just the rate at which the RPMs rise from idle to around 6500 (seems slower). After 6500 the RPMs raise quickly to redline. Maybe it's nothing at all, but it seems off to me. Info below.

Info:
This spring I bought a used 03 R6 with about 17K. I only got about 3k miles on it this summer - sad about that. Over the summer I added a PCIII and did the cheapo exhaust cut mod to the stock can. I tried to find a good map but really nothing is running it right. A group of guys I ride with had our bikes dyno'd (mobile station - tuning not available) I put up 103HP and was running pretty rich especially on the low end. I trimmed the fuel on the low with the manual PCIII buttons and it seemed to perk up the bike a little more. I am still running rich from what I can tell because my can is sooting up at the exit.

I winterized my bike, changed plugs, flushed coolant, bled the brakes, topped off the gas with 92 octane added sea foam and octane booster (my typical winter mix for sitting for a couple of months).
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post #2 of 46 (permalink) Old 12-10-2012, 10:49 AM
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Re: Slow Throttle Response?

Because its an 03 the first two things that come to mind is check the coils and check the TPS. Could also be a battery issue I believe but someone else who knows more than me can comment on that.

Finally get a better PC3 map.

2004 Yamaha R6

-6000K mintsoda HID Kit
-Custom Integrated Tail Light
-Flush Mount Turn Signals
-T-Rex Sliders
-Shorty Levers
-PC3
-Factory Pro Superflare Velocity Stacks
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-Shorty Exhaust Conversion
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post #3 of 46 (permalink) Old 12-10-2012, 10:58 AM Thread Starter
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Re: Slow Throttle Response?

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Originally Posted by Waqsy View Post
Because its an 03 the first two things that come to mind is check the coils and check the TPS. Could also be a battery issue I believe but someone else who knows more than me can comment on that.

Finally get a better PC3 map.
The PCIII map I am running is temporary. I'll be getting a full dyno tune this spring so I'll have a custom map. I read up on cleaning the TPS, seems easy enough to clean and come to think of it, I may have had a little corrosion in one of my coils when I did my plugs not too long ago. Perhaps I'll check that if cleaning the TPS and a new map don't resolve anything.

Thanks for help!
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post #4 of 46 (permalink) Old 12-10-2012, 11:12 AM
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Re: Slow Throttle Response?

I'd probably err on the side of all the fuel additives you've put in it if this is just now occurring.

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post #5 of 46 (permalink) Old 12-10-2012, 11:20 AM Thread Starter
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Re: Slow Throttle Response?

Quote:
Originally Posted by ChiefSmokeDawg View Post
I'd probably err on the side of all the fuel additives you've put in it if this is just now occurring.
I'm hoping that is all this is. I've heard if you add too much octane booster it more or less makes your fuel run rich rather than just a higher octane. The biggest problem is that it is really getting too cold to even make wrenching on the bike worth while since I can't ride now anyhow. Now this potential problem is just going to bug me until I can look into it again. Damn the winter!
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post #6 of 46 (permalink) Old 12-10-2012, 11:37 AM
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Re: Slow Throttle Response?

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Originally Posted by Skitch View Post
I'm hoping that is all this is. I've heard if you add too much octane booster it more or less makes your fuel run rich rather than just a higher octane. The biggest problem is that it is really getting too cold to even make wrenching on the bike worth while since I can't ride now anyhow. Now this potential problem is just going to bug me until I can look into it again. Damn the winter!
Higher octane just means the fuel is LESS flammable. This is contrary to popular belief. So you've made it less and less flammable.

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post #7 of 46 (permalink) Old 12-10-2012, 11:46 AM
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Re: Slow Throttle Response?

Quote:
Originally Posted by ChiefSmokeDawg View Post
Higher octane just means the fuel is LESS flammable. This is contrary to popular belief. So you've made it less and less flammable.
You sure about that???
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post #8 of 46 (permalink) Old 12-10-2012, 11:49 AM
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Re: Slow Throttle Response?

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You sure about that???
I sure hope so!!!!

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post #9 of 46 (permalink) Old 12-10-2012, 11:53 AM Thread Starter
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Re: Slow Throttle Response?

Quote:
Originally Posted by ChiefSmokeDawg View Post
Higher octane just means the fuel is LESS flammable. This is contrary to popular belief. So you've made it less and less flammable.
Now I might learn something new here. You have got me intrigued. If higher octane means LESS flamable - which based on concept I can comprehend - more parts oxygen and less parts fuel. Why would performance motors want higher octane fuels? This is assuming we're still talking about gasoline and not getting into other forms of fuels. Maybe the better question is where does fuel octane come into play with the combustion process? This may be a less educated thought but I guess I always assumed more octane, more power. Am I wrong?
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post #10 of 46 (permalink) Old 12-10-2012, 12:02 PM
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Re: Slow Throttle Response?

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Originally Posted by ChiefSmokeDawg View Post
I sure hope so!!!!
If you say so
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