[Smokin_N_Ridin]

I have a 2004 600RR. It's got A LOT of mileage (31,500+), but I don't think that is what the problem is. . .

The bike runs GREAT at low end, until I hit 9,000RPM, then the engine sounds like it wants to explode or something. I can't really explain the way it sounds, but the RPMs just completely stop rising. The bike doesn't slow down at all, just doesn't pick up any speed. It seems to be only when I give close to full throttle. If I ease into the throttle very slowly, like maybe 10 - 15% (and I really mean ease,) it picks up speed slowly but surely. But who owns a sportbike that wants to ride that way??!!?

I've recently changed spark plugs, air filter, and regularly change oil every 2 - 3K miles TOPS ever since April '04 when I got it. I have a 50 tooth sprocket also, but this has been happening since before I got it.

Anybody have any idea what this could be or have a similar problem with their RR? I really miss opening it up on the highway and the bike only tops out at about 120 now. . .PLEASE HELP!

[Jonny Rocket]

What other mods have been done to the bike?

[Smokin_N_Ridin]

Slip on Stiletto exhaust . . . Thats about it other than cosmetics . . .

[slickwill]

I've had similar problems with two different cars. Both times it was a fuel filter. The filter would flow enough at low RPM to run just fine but as you increase the load on the engine the filter can't flow enough to match the RPMs and everything goes to heck.

Ignition system can do the same thing. As you increase the load it takes a lot more juice to get a good spark. So you could also check things like plug wires, etc.

[Jonny Rocket]

First, I would bring it to a trusted mechanic and have the valves and cam chain adjusted. Then you might think about getting a Power Commander and having it custom mapped for your bike.

[Smokin_N_Ridin]

Cool, thanks for the quick reply . . . Around how many miles should you have to do a valve adjustment?

[slickwill]

My '02 F4i says to "inspect" at 16K. It never does give an actual time to actually adjust. I only have 2700 miles on my bike so I'm a long way off so I'm not sure when they would need to be adjusted. I would think that with 31K you would definately need an adjustment.

[Smokin_N_Ridin]

Originally Posted by slickwill

I would think that with 31K you would definately need an adjustment.

LoL, ya think? I know it's long past due, but the cheapest I can get it done for is $400. Sounds a bit much to me, but I guess I don't have much of a choice at this point.

[wornknobby3]

its not adjusting the valves thats hard, its getting to them to actually adjust them that takes so much friggin time.

[rokitt51]

I think that you may be looking at fueling. Make sure that the fuel lines under the tank arent kinked and not allowing full flow. that was my culprit on my RC. Also check the breather hoses and ensure the same. Were the plugs pre gapped.

[Custom900]

Fuel Pump is bad or you need a fuel filter.

[Smokin_N_Ridin]

Found out some GREAT news today!! I still have an extended warranty that I got when I bought the bike! Honda is going to diagnose and fix the problem for free if it is in fact the fuel pump, as well as fixing the brake linkage that was recalled by Honda on the 04 600RR. Can't drop the bike off until next week some time, but I'll let you guys know how it turns out. . .

[Smokin_N_Ridin]

Arite Guys . . .so here's the deal when I brought my bike to Honda. . .
As I said earlier, I have an extended warranty on the bike. . .

The mechanic at Honda SWORE that it was the MAP sensor that was bad and this was the reason for the problem I'd been having. . .He said the fuel pump tested fine and it wasn't the problem. I told him what I had read over the past couple weeks about 600rr Fuel Pump problem with the same symptoms, but he wouldn't order the damn pump for me. . .
Bike was at the shop for 2 weeks, got it back with a new MAP sensor and I'm still having the same effin' problem!! The guy at the shop told me when I called to pick it up that everything was fixed and it was running like a champ. . .
WRONG!!!
When I picked up the bike, I rode down the block from the shop and turned right back around . . . The guy was apologizing left and right and told me he was ordering a pump "right now." I'm still waiting for the new pump and fuel filter to come in. I'll let you guys know what happens after I get her back . . .

[Okami]

Originally Posted by Smokin_N_Ridin

Arite Guys . . .so here's the deal when I brought my bike to Honda. . .
As I said earlier, I have an extended warranty on the bike. . .

The mechanic at Honda SWORE that it was the MAP sensor that was bad and this was the reason for the problem I'd been having. . .He said the fuel pump tested fine and it wasn't the problem. I told him what I had read over the past couple weeks about 600rr Fuel Pump problem with the same symptoms, but he wouldn't order the damn pump for me. . .
Bike was at the shop for 2 weeks, got it back with a new MAP sensor and I'm still having the same effin' problem!! The guy at the shop told me when I called to pick it up that everything was fixed and it was running like a champ. . .
WRONG!!!
When I picked up the bike, I rode down the block from the shop and turned right back around . . . The guy was apologizing left and right and told me he was ordering a pump "right now." I'm still waiting for the new pump and fuel filter to come in. I'll let you guys know what happens after I get her back . . .

those damn dealerships....

[slickwill]

Dealerships suck, but your bike should be running great now.

[Smokin_N_Ridin]

Yea tell me about it . . .but if I wanna get the $425 pump through my warranty, I gotta take it there unfortunately . . .

[Hammer]

Originally Posted by Smokin_N_Ridin

I really miss opening it up on the highway and the bike only tops out at about 120 now. . .PLEASE HELP!

I hope you never get the bike back if that is what you are going to do with it. If you want to ride the bike to it's fullest extent, get on a track and ride not the public roadways.

[tmac]

any news on this??