A little background first. I had a 2000 vfr that i crashed. that was replaced by an fz6 (inline 4). On Sat. i picked up my new in the crate 07 RWB. Today was the first chance i had to really ride. i noticed that there is some vibration in the engine while accelerating. Mainly from 3k up to about 4.5k. On deceleration it is smooth as silk. I really don't remember this on the 2000. I know its a v4 and will not be as smooth as the inline. The vibration is not like a v twin cruser just a little vibration. does this sound normal? I think i'm just being paranoid but would rather ask.
i'm not going wide open. just normal acceleration.
guess i feel it in the seat more than anything. maybe i'm not explaining very well its not a vibration. its like a v twin but not near as noticeable. i would think with 4 cylinders i wouldn't feel it. maybe it was there on the 2000 but i really don't remember it. i had a honda v twin and it was very noticeable. this is very subtle. maybe i'm just being paranoid. just wondering if anyone else "feel" the twin. the bike runs at normal temp. the fuel economy is right at 40 so i don't think it is missing.
[image: View Post]gpd211, on 16 November 2009 - 01:56 PM, said:
A little background first. I had a 2000 vfr that i crashed. that was replaced by an fz6 (inline 4). On Sat. i picked up my new in the crate 07 RWB. Today was the first chance i had to really ride. i noticed that there is some vibration in the engine while accelerating. Mainly from 3k up to about 4.5k. On deceleration it is smooth as silk. I really don't remember this on the 2000. I know its a v4 and will not be as smooth as the inline. The vibration is not like a v twin cruser just a little vibration. does this sound normal? I think i'm just being paranoid but would rather ask.
Nice Bike. I have an 06' and the Vibration is completely normal. If I remember correctly, it will go away a little as it breaks in. Stay in the 4k and beyond and you will be happy. Congrats and welcome.
The engine will smooth out some as it breaks it, but also keep in mind that these thigns like to rev. The VTEC bikes just aren't made to lug around like a V-twin or detuned inlines. It took me a while to get used to it, but now I just ride it and worry not.
Welcome. Nice bike! :fing02: I just did the 600 mile break in service on mine. I agree with what the others said, it will smooth out a little and it does like to rev. Open it up a little, around 8k and up, and let the VTEC kick in, and it's butter smooth.
A little side note, when I picked it up after the service, the lead mechanic asked me how I rode it during the 'break-in' period. He told me that with all the demo bikes he's ridden over the years, he never babied one of them. Just rode the snot out of them. And not one came back in for any kind of problems related to it. So just ride it just like you're going to be riding it in the long term.
Another gorgeous RWB right out of the crate. I love it. :fing02:
Isn't that "new bike smell" awesome? ;)
A word of advice: that rear seat cowl can rub on the bodywork and eat through your paint. When I was looking for mine, a lot of the used ones I saw had damaged finishes back there around the seat. I know vthoky's found this to be the case with his red '07 as well, and he probably has less than four months and 2,000 miles on it.
I'm sure you can mitigate it with protective tape or something, and maybe it doesn't happen to everybody - but I just thought I'd throw it out there.
Keep it above 4,000 RPM's and your problem will be solved. You can tell if this is lugging because the shaking will be more pronounced the more throttle you give it.
Ditto's on the smoothing out as it breaks in!! The vibration surprised me a little bit at first as well, seems like it really smoothed out after about 1500 miles. I thought it was just me getting used to the bike, but riding home the other night taking it easy, I accelerated from about 3500 RPM, which would have caused a lot of vibe when new; it took it in stride and was smooth as you please.
Enjoy your new '07 (even if you did pick the wrong color) :goofy:
Kinda like a V twin when ya think about it.....
At lower rpms, they run on two valves per cylinder, and then around 6300revs, vtec kicks in and operates four per cylinder.... :comp13:
One setting for putt-putt. :schla15:
One for :squid: :wheel: :491:
Nothing to worry about; just ride it like you stole it! :idea3:
Greg :fing02:
[image: View Post]Ryanme17, on 19 November 2009 - 04:10 PM, said:
Keep it above 4,000 RPM's and your problem will be solved. You can tell if this is lugging because the shaking will be more pronounced the more throttle you give it.
+1. I rarely apply throttle with the bike running below 4k rpm. The bike just doesn't like it IMO. VFRs are much happier revving higher - and let's face it, it's just more fun further up the tach, too! :)
BTW, I've always heard you should avoid riding for long stretches at the same speed and rpms when breaking in a new engine. Seems the old "don't exceed 5k rpm, etc." thing is finally dying off, but you do want to avoid mile after mile of 4-5k rpm droning. And ride it like you stole it once in awhile, but don't redline it/bounce off the rev limiter.
There is no problem. I keep mine above 5k rpm when possible. Anything less is almost lugging it. Below 3k is definetly lugging it. These bikes get better with miles. Mine has 54k miles and is smoother,I.E., better driveability than when new.
Yeah you want to change rpm's up mas much as possible. I just wouldnt rev it over 7k for 600 miles
[image: View Post]carlitos92, on 16 November 2009 - 07:52 PM, said:
A word of advice: that rear seat cowl can rub on the bodywork and eat through your paint. When I was looking for mine, a lot of the used ones I saw had damaged finishes back there around the seat. I know vthoky's found this to be the case with his red '07 as well, and he probably has less than four months and 2,000 miles on it.
I'm sure you can mitigate it with protective tape or something, and maybe it doesn't happen to everybody - but I just thought I'd throw it out there.
Carlitos is correct. The rear seat cowl does a bit of the bump-and-grind, and not the good kind. I put a piece of protective film over the rear section and reinstalled the cowl. Now I've got holes in the protective film AND rub marks on the plastic. Furthermore, the tail bag's neoprene base tends to keep the bag in place better when sitting on "seat material" than when sitting on the cowl. So now the cowl, as pretty as it makes the rest of the bike, resides in the spare parts drawer.
You might be in too high of gear, going through that low rpm range, but if trying to hover in the 3 or 4 ,000 rpm range vfr will shudder in disgust, if in too high of gear. This bike needs 5,000 rpm min in a cruise state
But no, if i start off in first gear I go right trhough 3 or 4k smooth as slik . But just give it a few thousand mile, they are also a few lean spots at small throttle openings below 1/4 throttle.
I would remove all throttle slack to very minimum level you can, makes a huge difference in wrist position and herky jerky
The vibration you describe is very normal. Not what you would expect from a V4 Honda, but normal nonetheless. I have the benefit of perspective having owned VF750F's, VF1000F's and VF1000R's. Those bikes never had any of the VFR VTEC vibration in that 3,000 - 4,500 range I feel with my 07. It seems to be VFR VTEC common. Don't worry about it. Just enjoy it and BTW, you picked the fastest color(s)! :fing02:
thank for putting my mind at easy guys. I really do dig the vibs. it makes it feel like there is some real power there. just didn't remember in on the 5th gen
[image: View Post]gstanfield, on 16 November 2009 - 06:00 PM, said:
The engine will smooth out some as it breaks it, but also keep in mind that these thigns like to rev. The VTEC bikes just aren't made to lug around like a V-twin or detuned inlines. It took me a while to get used to it, but now I just ride it and worry not.
I believe this roughness has to do with current ultra lean emissions mapping. The RPM area in question is an area that emissions are checked. Once I installed PCV w/Autotune all that roughness went away. I cruise 3.5k smooth as butter. You still don't want to nail the throttle that low, kind of hard on the bottom end, but cruise is fine.
Welcome and excellent choice in VFR. I saw the RWB and had to have it. Best looking bike ever (imho!) Bought mine in October '09 and have already put 2500 miles on it. The bike definitely likes revs above 4000 in all gears.
[image: View Post]coderighter, on 23 November 2009 - 05:42 AM, said:
I believe this roughness has to do with current ultra lean emissions mapping. The RPM area in question is an area that emissions are checked. Once I installed PCV w/Autotune all that roughness went away. I cruise 3.5k smooth as butter. You still don't want to nail the throttle that low, kind of hard on the bottom end, but cruise is fine.
I absolutely agree.
Mine is smooth at 3000RPM and will pull away happily as long as you do it gently from 3000 up.
They are just too lean down low in standard form.
Mine had terrible lean surging at 3000 with the standard setup, and a "dead" feeling just cracking the throttle, but a PC3, good map and a few other mods soon fixed up all that crap.