power loss at 7000 rpm - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 10 (permalink) Old 08-11-2015, 08:42 PM Thread Starter
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power loss at 7000 rpm

My rc has a flat spot in the power curve at around 6 to 7000 rpm and picks up after that. any solutions? I re adjusted the timing and it's perfect now but still has the flat spot.
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post #2 of 10 (permalink) Old 08-11-2015, 08:59 PM
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Do you have an aftermarket pipe? a PC?

If you have a PC connected, disconnect it to see if the issue goes away.



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post #3 of 10 (permalink) Old 08-11-2015, 09:04 PM
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On the surface, it sounds like a very lean spot in the air/fuel curve.
Happened to me after I bought my RC51.

The prior owner must have never gotten the exhaust mapped.
On mine, at about 5800 RPM, the power began fading away, and at 6000 RPM, it was so lean it started to misfire.
Past 6200 it picked up and ran fine.

After I got it mapped, no more problems.

Last edited by SubSailor; 08-11-2015 at 09:51 PM.
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post #4 of 10 (permalink) Old 08-11-2015, 09:41 PM Thread Starter
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after market exhaust ordered the power commander.
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post #5 of 10 (permalink) Old 08-11-2015, 10:01 PM
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after market exhaust ordered the power commander.
Which exhaust? One of these members may have a map you can use to improve your situation.



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post #6 of 10 (permalink) Old 08-11-2015, 10:02 PM Thread Starter
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thanks. I will try it when the pc comes
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post #7 of 10 (permalink) Old 08-11-2015, 10:08 PM Thread Starter
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Its a jardine 2 into 1
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post #8 of 10 (permalink) Old 08-11-2015, 11:13 PM
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shinzilla, when i had my rc i used the erion 2:1 map from power commander website. i had a jardine 2:1 and the bike pulled great to redline, no flat spots
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post #9 of 10 (permalink) Old 08-12-2015, 01:10 AM
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Originally Posted by shinzilla View Post
My rc has a flat spot in the power curve at around 6 to 7000 rpm and picks up after that. any solutions? I re adjusted the timing and it's perfect now but still has the flat spot.
Which timing did you adjust?
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post #10 of 10 (permalink) Old 08-12-2015, 03:02 PM
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Its a jardine 2 into 1
That's what my bike came with when I bought it, and had the lean spot and misfire at 6000 RPM.
A power commander map session cured it.
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