new bike, is this normal?? : V-Twin Forum: Harley Davidson Forums

1978terrorizer · 01-22-2007, 07:02 PM

Just got an 07 street bob. When I get into the upper rpm range, it seems to hit the rev limiter, then kinda shuts down to where the bike wont rev over about 2,000 rpm. I have to shut the bike down to re-set it.
Is this normal???? What is the rev limiter set at from the factory?

road_king · 01-22-2007, 07:10 PM

Not normal. Your bike should rev past 2000 rpm. Best to take a trip back to the dealer and have them take a look at it.

gunnut · 01-22-2007, 07:11 PM

Not normal. THe factory setting on my 04 was 5500 RPM. It'd be unsafe to cut it down to 2200.

FE Butte · 01-22-2007, 07:12 PM

FI'ed HD's "newer" models are set to around 5,500 RPM's for the limit. You may be going into some kind of "limp home" mode, doesn't sound normal. Good luck with it.

Jeepin_Lawyer · 01-23-2007, 07:05 AM

I would get to the $tealer ASAP!!

berserker · 01-23-2007, 04:10 PM

Do you have a tach? I didn't think the Street Bob came with a tach.
If you have to turn the bikeoff to reset, does not sound like the rev limiter, atleast what I got on my carbed bike.

EZ2rider · 01-23-2007, 04:43 PM

Rev limiter was set to 5300 on pre 07s and they would just cut off at that rpm but nearly immediately recover when the rpms drop.

Either it has changed, or your limiter is placing the bike into a limp mode as someone has said. With the issues encountered by some on 07s, think I'd consult a shop manual. You may, however, find some reference to it in your owner's manual. If convenient, a simple call to the dealer should at least tell you if its normal. LOL, how "new" is it. Hitting 53-5500 rpm on a really low miles bike is not the greatest move you can make anyway.

EZ

berserker · 01-23-2007, 05:10 PM

Heat management system, not function properly? I don't have FI. But that may be something that needs to be reset.

LittleBear · 01-24-2007, 03:55 PM

Just ask the dealer, he will tell you it's normal. But seriously, take it in and get it fixed.

rovert · 01-24-2007, 07:22 PM

yup, I agree, sounds more like you are somehow getting the heat management system to kick in.

1978terrorizer · 01-24-2007, 08:16 PM

The owners manualy doesnt say anything about a heat management system that i can find. I am sure one exists in the bike, but lik eyou guys said it seems to be going into a limp mode of some kind. I know i shouldnt be pushing the bike into the upper rpm range, but its so tempting all the time and it sounds so awesome with the thunderheader. I guess im just weak.
Im goin to wait till i get a lil bit into the break-in and ill go back to the dealer. The last thing they want to hear is "When it hits 6000 rpms, it does somethin' funny" hehh

also, is anyone familiar with the "drive it like you stole it" method of break in? A buddy of mine was told to do it this way by his dealers mechanic. Sounds like hes trying to keep food on his table if you ask me, but just curious.

berserker · 01-25-2007, 06:23 AM

Quote:

Originally Posted by 1978terrorizer

Im goin to wait till i get a lil bit into the break-in and ill go back to the dealer. The last thing they want to hear is "When it hits 6000 rpms, it does somethin' funny" hehh

also, is anyone familiar with the "drive it like you stole it" method of break in? A buddy of mine was told to do it this way by his dealers mechanic. Sounds like hes trying to keep food on his table if you ask me, but just curious.

Lots of discussuion on breakin techniques in engine mod forum.

So is it doing at 2000 rpm or 6000? Also do you have a tach or guessing?

FI has a heat management system. I think the way it works is, turns of spark to a cylinder, but still squirts cold fuel in. Not positive on that part.

EZ2rider · 01-25-2007, 09:48 AM

Is there anything else abnormal going on when you AREN'T revving it into the "Red Zone"?

The heat management system should never kick in while the bike is rolling at speed. IF it does and is not a fluke, you have caused EXTREME HIGH TEMP from friction and were in danger of seizing the engine. If I were you, I would forget about this until over 1K and watch my oil consumption closely. You might also want to clear any codes that you stored during this episode.

Breaking a bike in "like you stole it" can make the bike a bit faster initially but might shorten the lifespan a bit. Racing engines are set up loose on purpose but are expected to be rebuilt very frequently. Tighter tolerances (in this case broken in "gently") are set for daily riders and tend to aid longevity and protect against damaging the cylinder walls and excess oil consumption.

My belief and that of many folks I trust for experience and technical knowledge is this, break it in as you would normally ride but avoid two things. Overheating the engine (by revving for more than just a very short time above the recommended shift points) and lugging the engine( operating under load at low RPMS, eg. cruising along at 2K in fifth when 2500 in fourth would be better for the engine.)

One other thing, avoid the temptation to break it in on the highway at a steady speed to hasten the miles adding up. Riding at a given RPM for extended periods in a new motor tends to cause roughness down the road.

Watch your oil consumption and be more cautious

1978terrorizer · 01-25-2007, 06:33 PM

Lots of discussuion on breakin techniques in engine mod forum.

So is it doing at 2000 rpm or 6000? Also do you have a tach or guessing?

FI has a heat management system. I think the way it works is, turns of spark to a cylinder, but still squirts cold fuel in. Not positive on that part.

I dont have a tach so im kinda taking a shot at what rpm exactly, but it does it after i get into the upper rev range. Im not revving the piss out of the bike like i want to grenade it, but im not exactly puttering around either. Then its suddenly restricted to a very low rpm and sputters like someone pulled a sparkplug wire. I shut it down and its reset. I realy dont think im hitting the rev limiter, but i dont have a tach. I dont get any check engine light when this happens or any other funny stuff. There is no way in hell this bike could be overheating, its like 93 below zero. I dunno, I guess its back to the dealer soon.

As far as the break in, ill drive it like i own it. I give it an occaisional twist when i have a clear road. I havent lugged it, I vary the speed, i run at a normal speed with a little playing around here and there, and i let it cool down from time to time...every half hour of riding or so, basicaly because its so damn cold out.

nvsteve · 01-25-2007, 07:21 PM

07s do not have a heat management system unless you ask the dealer to do the free download.