Loss of power Dont know the problem`

[Country600]

I have a 08 GSXR 600, I have had it since april. it has 5100 miles on it and on sat. i noticed that while riding in the mid and high range gears my power has decreased when i accelerate fast. I dont know if it has to do with the clutch or if the air filter needs cleaning i live in a desert climate, also a brown residue formed in and around my megaphone exhaust. It is almost as if the throttle response is laggy when rapid accel. is applied. any help with this is much appreciated.

[blackie1491]

Have you pulled and checked your plugs????

[Country600]

no i have not done that yet, i will do that this weekend when i get off work. If it is not the plugs what else may cause this. Thanks

[omegajim]

power goes down when accelerating -

could be fouled plugs.
or a dirty air filter
or, on a hard acceleration, you're flooding the engine.

[Easy Rider]

Originally Posted by Country600

I have a 08 GSXR 600, I have had it since april. it has 5100 miles on it .....

You are not taking it to the dealer with a warranty complaint because......why???

[Country600]

reason why i am not taking it to the dealer is i am in the military and am stationed where the nearest dealer is 60 miles away so i have to wait till weekend.

[Aussie Steve]

I would definatley take it in as they can then chase it down without you having to pay...sounds like poor fuel delivery to me or clogged air filter....in which case you will have to pay.

Good luck.

[cyrusyn]

Originally Posted by omegajim

or, on a hard acceleration, you're flooding the engine.

What would cause this flooding of the engine during acceleration?

[Easy Rider]

Originally Posted by Country600

I have a 08 GSXR 600, I have had it since april. it has 5100 miles on it and on sat. i noticed that while riding in the mid and high range gears my power has decreased when i accelerate fast.

Since it appears that we don't have a solution yet, let me throw out a couple of wild ideas:

1) Summer blend fuel is causing a slight loss of power.

2) Don't know what your level of experience is so I'm assuming "not much". If that is not true, please ignore the following.

It may be normal. A high performance bike is really powerful ONLY at higher RPMs. This is especially true of a 600. FI systems are also known for a "lag".
If you throw it WFO at a low RPM.....guessing 4K or less....there likely WILL be a lag. So, to accelerate fast in 4th gear, you first need to get it above 6-7K in 3rd gear first.

Wild generality here and I've never ridden that specific bike but my last one was an I-4 600 and that's pretty much how it acted.

[omegajim]

What would cause this flooding of the engine during acceleration?

easy, dump too much fuel at a low engine speed, and the engine floods.

You have to remember the amount of fuel being consumed between idle, partial throttle and a bit over half throttle are small increments.

Now, take an engine at idle. With fuel injection (fi) throttle response is instantaneous. The FI dumps the fuel into the engine, ready or not.

With a carb, I open up the throttle, but the engine can only rev up so fast because a carb works off of a vacuum, not an electronically controlled injection system. It isn't impossible to flood the engine on a carb system (pull the choke lever) but it is more difficult.

[cyrusyn]

Originally Posted by omegajim

It isn't impossible to flood the engine on a carb system (pull the choke lever) but it is more difficult.

Thanks a lot for your explanation.
I pulled all the spark plugs off of my suzuki gsf-600 today and found that the spark plugs were very wet.
And when I started the bike, it's idle rpm kept going down slowly and stalled. To keep it alive I had to pull the choke lever down more and more and it still died. Applying a throttle even the slightest bit would make it stall.

Could this be a air/fuel mixture ratio problem?
I smell fuel around the bike when I run it.
How can I fix this?

[Aussie Steve]

Check the obvious...leaks and then work from there. Possible faults may be throttle position sensor...if fitted to a FI bike. As the bike is still under warranty I would take it in and get them to fix it??????

[Blade]

I would recommend running a good FI cleaner through it. They are like cars and should be done regularly. If they get plugged or what not, they may not be atomizing the fuel as they should.

[cyrusyn]

unfortunately no fuel injection...
Has carburators.

[Easy Rider]

Originally Posted by cyrusyn

unfortunately no fuel injection...
Has carburators.

OK so then make that carb. cleaner.
Original Gumout or Berryman's B12 are good ones.

[omegajim]

seafoam is another option- because with a carb, the idle jets could be varnishing.


I might also recommend (under a controlled environment for a short period) to remove the air filter and see how it does. If that does it, then your air filter is dirtier than you thought. And you might look at it and hardly see all that much dirt.

[Aussie Steve]

Seems a little soon for carb problems to surface...but you never know...If it is flooding I would be more inclined to suspect float height or slight flooding of the carb/s...speck of crud under just one needle will cause the whole motor to run poorly.

Good luck...I would still take it in...especially as the plugs were all wet and obviously not firing well.