08 CBR dies with throttle idle. - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

 
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post #1 of 7 (permalink) Old 08-30-2016, 11:36 PM Thread Starter
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08 CBR dies with throttle idle.

Old cbr was totaled so I bought a new one. Swapped out the stock exhaust for a Yoshi exhaust (cut down 3 inches). I do NOT run a power commander on it yet.

While riding when I let off the throttle to idle and sometimes just sitting at idle the bike will bog down and die. The Fi light and the HESD light comes on when it dies. I am able to start the bike back up immediately.

I know the previous owner didn't take great care of the bike, which is a reason I am worried. Do you guys think this problem is due to the exhaust with no fuel map or something different?
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post #2 of 7 (permalink) Old 08-31-2016, 12:16 AM
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It could be any if a number of things. I wouldn't automatically assume the lack of PC.

Could be badly in need of tune-up, air filter needs replacement, and so on.

I'd start by finding out what exactly has (or hasn't) been done to the bike and go from there. But also, since you've put on a full exhaust, it will need some fueling management, so might as well get that done anyway.
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post #3 of 7 (permalink) Old 08-31-2016, 01:13 AM Thread Starter
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Well it's just a slip-on. Most of my knowledge of bikes comes from my R6 and fuel controllers aren't needed for slip ons for those bikes. There's a whole lot of extra pipe behind the cat on the CBR though. He bike only has 8K miles so I'd assume things like he valves and what not should be fine. I'll give it an oil change, new air filter and a power commander and pray that helps it.
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post #4 of 7 (permalink) Old 08-31-2016, 01:28 AM
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Oh, OK I was wrong about it having a full system. My bad.
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post #5 of 7 (permalink) Old 08-31-2016, 03:56 AM
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I wouldn't bet on the exhaust being the problem, you could even run the bike without any...

How is the bike maintainance wise?



Honda CBR600RR 2003 - Gone! (the blond)

Honda CBR600RR 2007 - On the road! (the brunette)
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post #6 of 7 (permalink) Old 08-31-2016, 11:26 AM Thread Starter
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8000 miles so it's still low for a 2008. I mean oil change has been done since I got it and the chain was definitely not cared for and absolutely destroyed so I got a new chain and sprockets. No need for valves with that low of miles. I suppose I could try new spark plugs.

Any recommendations ?
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post #7 of 7 (permalink) Old 08-23-2017, 06:05 PM
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I would check for air flow issues. Likely if the chain was that destroyed the airbox was never opened and filter never checked/replaced. also the bike may have spent time parked outside.
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