Honda CBR 600RR Forum banner

1 - 20 of 23 Posts

·
Registered
Joined
·
24 Posts
Discussion Starter #1
Bike has had an issue with high rpms for awhile. Did a dyno run and it put 82 to the wheel. What they didnt know is that it wont rev higher than 13k at wot. If they would have let off the throttle a hair it would have revved all the way to redline. Without knowing this, the tech told me without skipping a beat that it was the plugs. What do you guys think? Its a 2005 with only a yoshi rs5 slip on. What should I be making? Should I change the plugs regardless to see if it helps cause I know its a pain in the ass to change them.
 

·
Registered
Joined
·
2,049 Posts
You call, if you want the bike to run better then you need to try what you can, pain in the ass or not.

Been seeing a lot of older RR's with bad plugs causing similar symptoms on here lately. It seems like it might be the way the cap clamps the plug top wears eventually. The other common area with running conditions like you describe is the fuel pump. I'd check that as well, follow your service manual directions for both items.

FYI a dyno reading is only as good as another bike like yours on that dyno. By that I mean with a mouse click you can make a dyno say a 600 puts out 150hp and they need to be calibrated often which they rarely are so the actual number is really only a realitive thing compared to what that dyno says another like bike says. On a calibrated dyno with a good operator and a healthy bike with a good rear tire it should be right about 100 give or take a few.

Mike
 

·
BOTY 2014 Winner
Joined
·
4,814 Posts
Bike has had an issue with high rpms for awhile. Did a dyno run and it put 82 to the wheel. What they didnt know is that it wont rev higher than 13k at wot. If they would have let off the throttle a hair it would have revved all the way to redline. Without knowing this, the tech told me without skipping a beat that it was the plugs. What do you guys think? Its a 2005 with only a yoshi rs5 slip on. What should I be making? Should I change the plugs regardless to see if it helps cause I know its a pain in the ass to change them.

What on earth does this mean. You obviously have an issue that is much more serious than spark plugs.
 

·
Premium Member
Joined
·
2,991 Posts
There isn't a stop in the housing on the handle bar, so I'm not sure how this would be possible?
The cables connect to somewhere else though don't they? I honestly have no idea but after fixing something that required removing the throttle bodies I've noticed a lack of umph, and I wonder if that's why.
 

·
BOTY 2014 Winner
Joined
·
4,814 Posts
There is a stop at the throttle body side, but its a mechanical stop on the lobe the cables attach to, not the cables themselves
 

·
Registered
Joined
·
2,049 Posts
Scoff all you want, he's right. There is a mechanical stop to the throttle cable, no way can the cables do what you are implying they do. I get that you're "wondering" outloud because of your situation but it's not helping people with real problems find real solutions.

Op, the TPS could potentially be an issue, but a simple test will rule it out and just a gut feeling but unless you've played with it should be set correctly.

Any other symptoms? Have a Power Commander on it?
 

·
Premium Member
Joined
·
2,991 Posts
Scoff all you want, he's right. There is a mechanical stop to the throttle cable, no way can the cables do what you are implying they do. I get that you're "wondering" outloud because of your situation but it's not helping people with real problems find real solutions.

Op, the TPS could potentially be an issue, but a simple test will rule it out and just a gut feeling but unless you've played with it should be set correctly.

Any other symptoms? Have a Power Commander on it?
the rolleyes was actually because instead of all the words he used and you used, all I wanted to know is if it was possible or not...so an answer with just a yes or no would be all I need to know if it's a possibility or is the culprit something else.
 

·
Registered
Joined
·
2,049 Posts
the rolleyes was actually because instead of all the words he used and you used, all I wanted to know is if it was possible or not...so an answer with just a yes or no would be all I need to know if it's a possibility or is the culprit something else.
Ok then:

No.
 

·
Registered
Joined
·
24 Posts
Discussion Starter #15
What on earth does this mean. You obviously have an issue that is much more serious than spark plugs.
This response is exactly why i get pissed every time i even think about the problem. Its soooooooooooooooooo hard to explain in words and makes me sound retarded when i try to. I mean exactly what you think i mean. But i recently changed the oil and re-stacked the clutch plates and torqued down the clutch spring bolts. Rode the bike, and for about 10 miles it worked like it should, then went right back to doing what it was normally doing. To the guy asking, no the dyno did not hit redline. He kept it wot and was unaware the bike wouldn't rev to redline unless he let off the throttle just a hair. Like I said after checking the friction plates (they were fine) I re stacked the plates and torqued the bolts, put new oil and filter in it and boom it ran like new and the problem went away. I have no clue why the clutch or age of the oil would have anything to do with it but apparently it did. and now instead of always doing it, it is hit and miss and sometimes will work and sometimes wont. I am lost at what do do other than take it to a shop and literally just say figure it the **** out but that bill wouldnt be pretty and i sure as **** couldn't afford it. Hence why i ride a 10 year old bike. :banghead: :banghead:
 

·
Registered
Joined
·
24 Posts
Discussion Starter #16
Op, the TPS could potentially be an issue, but a simple test will rule it out and just a gut feeling but unless you've played with it should be set correctly.

Any other symptoms? Have a Power Commander on it?

Bike is stock other than slip on. Has a brand new yoshi rs5 that i put on myself and the problem existed before and after the install with no change. Also can you give me a step by step for the tps test? I have a multi meter if I need one.
 

·
Registered
Joined
·
24 Posts
Discussion Starter #18
Also what is the story on the tps. From what ive heard they are not sold separate from the throttle body and you would have to buy a new throttle body. That is waaaaaay to much money so where can I get JUST the tps?
 

·
Registered
Joined
·
458 Posts
I have had 5 or so 600rr bikes and not one of the had any tps problems (one with 50k+ miles).

So by restack clutch plates and re-torqued springs you mean you re-used the old plates steels and springs? If so, there's your answer right there. Time for NEW plates, steels, and springs. My ZX-10r had the exact same problem. It'll get worse pretty quick.

If you still think its the tps I have an entire throttle body set up I can sell you cheap.
 
1 - 20 of 23 Posts
Top