2004 NH with issues after yoshi install - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 8 (permalink) Old 09-19-2015, 12:18 PM Thread Starter
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2004 NH with issues after yoshi install

Hi guys, first post and have to start with an issue

I just picked up '04 NH 2 weeks ago with 8k miles and only under tail as an upgrade. Drove 100 miles home with no issues.

Last weekend installed yoshimura slip-on and the bike started and sounded great(could not ride due to rain), so it sat another week in the garage. When i started it this am it started and idle rough had to really keep rpm up to ride, kept backfiring too.
No codes no blinking lights.

Could free flow exhaust lead to air/fuel problems?
Is powercomander the cure here?

Please help this lost soul... the wife would say 'told you not to buy it'
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post #2 of 8 (permalink) Old 09-19-2015, 03:58 PM
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A simple set of slip-ons added to a stock bike won't cause that problem (as evidenced by the way the engine fired up and ran last weekend after the installation).

Did you possibly forget to pull out the "fast-idle" enrichment circuit knob (ya know, the one on the left side of the bike) before starting the bike this morning?

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post #3 of 8 (permalink) Old 09-19-2015, 04:22 PM Thread Starter
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Choke? Do you mean I used it to warm the bike?
I used choke for 1st few min.
Then the bike warmed up to 190+
And I returned it to normal

I did notice bike was ideling at 1000rpm when warm, Too low?

Thanks for your input.
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post #4 of 8 (permalink) Old 09-19-2015, 06:19 PM
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Yeah 1000rpm is way too low when the bikes warm, turn up the idle adjuster
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post #5 of 8 (permalink) Old 09-22-2015, 07:27 PM Thread Starter
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Update.

I have increased idle to about 1300 rpm. No improvement

I installed power commander V with yoshimura slip-on map, it made some mild improvement while riding.
Bike still idles rough and taking off from a stop bike frequently surges and jerks then drives and shifts fine.

Any ideas ???
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post #6 of 8 (permalink) Old 09-23-2015, 09:14 AM Thread Starter
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I feel like a crazy person talking to myself

Anyway after extensive ‘search’ I will change FPR and spark plugs just for fun, will see if that cures it.
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post #7 of 8 (permalink) Old 09-23-2015, 12:13 PM
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always a good call
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post #8 of 8 (permalink) Old 09-27-2015, 06:37 PM Thread Starter
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Done... new spark plugs and FRP and the bike runs like a champ !!!!!!!

Why do i talk to myself....? Because I like to talk to someone smart!

Anyway great board with lots of useful info.

Thanks to anyone who contributed !!
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