Rev limiter hit in 1st gear and now no full throttle

[Macke]

2007 RSV with 35,000 miles. Hit rev limiter in 1st gear and immediately following hit 2nd and now bogs down upon hitting full throttle. Need help.

[dingy]

2007 RSV with 35,000 miles. Hit rev limiter in 1st gear and immediately following hit 2nd and now bogs down upon hitting full throttle. Need help.

 

Did you hit the limiter under load, or miss shift into second ?

 

If you missed the shift, it may have floated valves and contacted piston.

 

Gary

[Macke]

Gary, hit rev limiter under load. Bike starts, idles normal, allows for slow rev and then upon reaching what I would call light to medium rpm it bogs down.

[dingy]

Gary, hit rev limiter under load. Bike starts, idles normal, allows for slow rev and then upon reaching what I would call light to medium rpm it bogs down.

 

So much for my contribution. Don't know of a reasonable explanation for problem with just hitting rev limiter.

 

Gary

[Kirby]

I think you may be relating 2 different things that just by coincidence happened about the same time. My guess is you're having fuel starvation from one or more of your main jets being stopped up. Or maybe you got water in you float bowls. I'd start there anyway.

[star4772]

2007 RSV with 35,000 miles. Hit rev limiter in 1st gear and immediately following hit 2nd and now bogs down upon hitting full throttle. Need help.

 

Change fuel filter first then test drive.

[Big Lou]

I am going with :::::

 

TRASH

 

cleaner and filters . check air too

 

what do I get. if it is the right answer???

 

please dont give me the trike I found on craigslist w/v-8 in it

[MikeWa]

Very unlikely hitting the rev limiter would damage anything. It is after all there to protect the engine. More likely something else is causing your problems. Your description sounds like fuel starvation. So +1 for the previous suggestions.

 

Are you sure you hit the rev limiter? Is it possible what is causing your problem occurred while you were getting on it? And had a similar sensation to hitting the limiter?

 

Mike

[Caveman]

Very unlikely hitting the rev limiter would damage anything. It is after all there to protect the engine. More likely something else is causing your problems. Your description sounds like fuel starvation. So +1 for the previous suggestions.

 

Are you sure you hit the rev limiter? Is it possible what is causing your problem occurred while you were getting on it? And had a similar sensation to hitting the limiter?

 

Mike

:sign yeah that:Exactly what I was thinking.

[GeorgeS]

Seems like I have heard of more then one plugged fuel filter around the 30 to 40 K

mark. Good place to start.

 

Also might be a fuel pump starting to go bad.

[Macke]

Changed the fuel filter today and checked for water in the fuel. No water/no change. I plan to pull the fuel pump from my son's 99 RSV and see if it corrects the issue.

 

Am I to understand that a defective fuel pump restricts fuel flow of a running engine with over 1/2 tank of fuel?

[GeorgeS]

Changed the fuel filter today and checked for water in the fuel. No water/no change. I plan to pull the fuel pump from my son's 99 RSV and see if it corrects the issue.

 

Am I to understand that a defective fuel pump restricts fuel flow of a running engine with over 1/2 tank of fuel?

 

The Fuel Petcock, is located on Lower Right side !! Fuel will not run " Up Hill " !!

 

Pump has to work, or NO gas in the Carbs !!

[Macke]

George,

I have done the following:

1. Replaced the fuel filter.

2. Checked for moisture in the fuel and nothing. Regular user of Seafoam.

3. Installed the fuel pump from my son's RSV and no difference.

4. Unit starts fine without choke on these warm days.

5. Idles smoothe.

6. When applying slow even acceleration on stand in neutral, it raises RPMs to a low moderate level and then bogs down as if not getting gas and will stall unless you let off throttle.

7. If you accelerate aggressively it will bog down just as above.

Note: This failure took place immediately upon hitting the rev limiter in first.

[crowrod]

sounds like a weak fuel pump. try with a known good pump, your sons pump may be weak also, being from a 99.

[RedRider]

Having two fuel pumps do the exact same thing doesn't make sense that the fuel pump is the issue.

 

I would check your synchronization. Something may have slipped in the linkages.

 

As another thought - What happens when the rev limiter is hit? Does it shut down the coil? May there be a bad RPM sensor? I don't know how that circuit works.

[Condor]

sounds like a weak fuel pump. try with a known good pump, your sons pump may be weak also, being from a 99.

 

I just replaced the fuel pump on my '07 and what a difference... And there's no doubt that it's working. Tock..tock..tock. Now the '99 pump on the other hand works, but is more like a weak tick..tick..tick. I'm in the proccess of replacing the tank and cleaning out the fuel system due to owner FUBAR and might have to replace the pump as well. Went with OEM on the '07 , but will probably go with the 42S if needed on the '99...

[Flyinfool]

George,

I have done the following:

1. Replaced the fuel filter.

2. Checked for moisture in the fuel and nothing. Regular user of Seafoam.

3. Installed the fuel pump from my son's RSV and no difference.

4. Unit starts fine without choke on these warm days.

5. Idles smoothe.

6. When applying slow even acceleration on stand in neutral, it raises RPMs to a low moderate level and then bogs down as if not getting gas and will stall unless you let off throttle.

7. If you accelerate aggressively it will bog down just as above.

Note: This failure took place immediately upon hitting the rev limiter in first.

 

#6 seems to imply that it is electrical and not fuel related.

The fuel flow at moderate RPM in neutral is very low compared to full throttle under load. This seems to be RPM related and not fuel related.

 

I am not sure just how the rev limiter works on a 2nd gen.

Does it skip sparks to reduce power, change timing, shut off cylinders, other?

Could it be a bad tci, a coil breaking down at higher frequencies?

 

Is it a PITA to swap TCIs from sons RSV?

 

Maybe do a compression test or leak down test to see if maybe you did float a valve like Dingy said.

A weak valve spring could have allowed a valve to float even before the rev limiter stopped it.

I never heard of that happening to one of these engines, But I have had it happen on other engines.

 

I'm just tossing ideas out here, I am not that familiar with the parts of a 2nd gen that are different from a 1st gen. But I did ride part way toward Galina with a 2nd gen last night.......

[RedRider]

But I did ride part way toward Galina with a 2nd gen last night.......

 

Hope he slowed down a bit so you could keep up.

 

RR

[bikenut]

Just one more idea , did you check you carb diaphragms. You may have ripped one or two. That was the way my 86 acted and I had two ripped diaphragms. Replaced them and everything was good. Just a idea. Good luck:fingers-crossed-emo

[VentureFar]

preface - I am not a wrench.

But on my 1100 Honda I thought I had a rev limiter until I found out it was jetted sooooo rich that full throttle flooded the rear cylinder.

Correct jetting and I had a whole NEW bike.

VentureFar....

[PGunn]

I am leaning towards the carbs being plugged only because it sounds like it is having an issue going from the idle circuit to the high speed circuit.

But like the others said....

I would try swapping the ECM(?) from your sons bike to yours and see if it is that.

If it proves not to be I would pull the carbs remove the bowl covers and floats and check the fuel flow (how much gas) the fuel pump is pumping out the end at the carbs (place the carb package over a 5 gallon bucket to catch the fuel) could be a restriction in the fuel line from the pump to the carb also disconnect the line from the tank and the pump blow air through it as it could be plugged also. If none of this proves to be the solution your next check would be the diaphragms in the carbs they could be ripped causing a vacuum leak.

Edited July 30, 2013 by PGunn

[motorcycle_1300]

Disconnect the battery let the bike stand overnight then hook things back up give it a shot. I would lean towards the fuel system but computers do dumb things from time to time, maybe it is remembering you hitting the rev limiter

 

Al

[VentureFar]

Should we start a pool for the winning answer ?

[Macke]

I did disconnect the battery as was a suggestion and no difference. More later.

[Big Lou]

Have you checked for air filter trash ,, that will cause it to bog, an be rich

 

blow it out