Exhaust - Honda Fury Forums: Honda Chopper Forum
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post #1 of 9 (permalink) Old 04-19-2019, 10:13 PM Thread Starter
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Exhaust

I am wondering if it would be a good idea to instal my new cobra sweepster exhaust and cobra fi2000 powrpro black tuner on the bike before its 300 mile break in? I’m easy on it and don’t want to mess anything up with a brand new engine by throwing tuners and a whole new exhaust system on it. Thanks for your advice in advance.
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post #2 of 9 (permalink) Old 04-19-2019, 10:42 PM
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I wouldn't. The first 500 miles it appears to run a break-in map.

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post #3 of 9 (permalink) Old 04-19-2019, 11:58 PM
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Originally Posted by KodyKing97 View Post
I am wondering if it would be a good idea to instal my new cobra sweepster exhaust and cobra fi2000 powrpro black tuner on the bike before its 300 mile break in? I’m easy on it and don’t want to mess anything up with a brand new engine by throwing tuners and a whole new exhaust system on it. Thanks for your advice in advance.
Welcome, and good instincts.

Although I am can't find any break in procedure in the owner's manual and in ten years on this forum have never heard of a "break-in map", I also rode mine easy and didn't change exhaust, air cleaner or add a fuel controller for the best part of the first 1000 miles. For me it was an opportunity to get a feel for the bike the way it was designed so that I would better know the effect of any future changes.
This advice has been offered previously by many members, many times
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post #4 of 9 (permalink) Old 04-20-2019, 03:42 PM
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Most ECU engines I've run into recently run de-tuned and rich the first 50 hours or so. After that the engine gains power and the fuel economy goes up significantly. Since some members notice they get around 25 MPG at first, then jump to around 50 MPG and more power (including myself), I'm guessing Honda is running a break-in map.

There's not much information on this subject in general, I found out about it working on various Polaris snowmobile and car (Slingshot) engines and saw other engines behave very similarly, so drew the conclusion it's for the same reason.

Maybe I'm all wet, but I used small words so hopefully you'll keep an open mind.


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post #5 of 9 (permalink) Old 04-20-2019, 07:06 PM Thread Starter
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I wouldn't. The first 500 miles it appears to run a break-in map.
what would happen if I did?
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post #6 of 9 (permalink) Old 04-20-2019, 07:07 PM Thread Starter
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Originally Posted by WI_Hedgehog View Post
Most ECU engines I've run into recently run de-tuned and rich the first 50 hours or so. After that the engine gains power and the fuel economy goes up significantly. Since some members notice they get around 25 MPG at first, then jump to around 50 MPG and more power (including myself), I'm guessing Honda is running a break-in map.

There's not much information on this subject in general, I found out about it working on various Polaris snowmobile and car (Slingshot) engines and saw other engines behave very similarly, so drew the conclusion it's for the same reason.

Maybe I'm all wet, but I used small words so hopefully you'll keep an open mind.

[IMG class=inlineimg]/images/FuryForums_2015/smilies/tango_face_grin.png[/IMG] [IMG class=inlineimg]/images/FuryForums_2015/smilies/tango_face_wink.png[/IMG]
is there a reason they run de tuned? Would anything disastrous happen?
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post #7 of 9 (permalink) Old 04-20-2019, 07:10 PM
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is there a reason they run de tuned? Would anything disastrous happen?
I have no idea if there is such a thing as a 'break in map' as this is the first that I have heard of it. But realistically, probably not. Could affect longevity and from a manufacturers point of view, warranty concerns.

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post #8 of 9 (permalink) Old 04-20-2019, 07:14 PM Thread Starter
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is there a reason they run de tuned? Would anything disastrous happen?
I have no idea if there is such a thing as a 'break in map' as this is the first that I have heard of it. But realistically, probably not. Could affect longevity and from a manufacturers point of view, warranty concerns.
appreciate it, I sure hope nothing happens within a year when warranty is up because I put them on yesterday lol. Sounds great though
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post #9 of 9 (permalink) Old 04-21-2019, 12:30 PM
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A break-in ECU map-from what I understand-is to help seat the rings and bearings, which there's a lot to mechanically, hence changing the oil, checking the valves, etc. at 500 miles. In theory this allows for better fuel economy and a cleaner running, longer lasting engine. I understand it also has to do with the super-tight EPA regulations being especially hard on engines during break-in.

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