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Hesitation problem? - 6/30/2008 7:08:49 PM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

Hey all, just bought a 00 929rr and am having some concerns about hesitation. The problem occurs when starting in 1st gear. Between 1k and 3k rpm''s the engine chugs and does not accerelate in a smooth motion. Its just like tring to start in 2nd and 3rd gear in your car and almost stalling out. The hard chugging dramatically decreases after the 3k rpm mark but I can still feel that the bike is hesitating. Not sure what the problem is? Any help or ideas? Thanks!!!!

Post #: 1

RE: Hesitation problem? - 6/30/2008 7:12:02 PM

letsride

Posts: 390
Joined: 10/11/2007
From: Waterford,Ca.
Status: offline

Any mods done to it?Power commander, if you have the wrong map can do this to your bike.

_____________________________

03 cbr 954 rr
Akrapovic bolt on
Bmc race air filter
Hass Eliminator
pcIIIr
pazzo levers
Life''''''''''''''''s a cycle ride it!

(in reply to Kolincj)

Post #: 2

RE: Hesitation problem? - 6/30/2008 7:16:05 PM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

The only mod on the bike is a Yoshi pipe

(in reply to letsride)

Post #: 3

RE: Hesitation problem? - 6/30/2008 7:21:42 PM

letsride

Posts: 390
Joined: 10/11/2007
From: Waterford,Ca.
Status: offline

There is your problem,Yoshi''s are for Suzuki''s JK.It could be that you need a PC to adjust the fuel and air mixture.

_____________________________

03 cbr 954 rr
Akrapovic bolt on
Bmc race air filter
Hass Eliminator
pcIIIr
pazzo levers
Life''''''''''''''''s a cycle ride it!

(in reply to Kolincj)

Post #: 4

RE: Hesitation problem? - 7/1/2008 5:11:47 AM

sc929

Posts: 143
Joined: 8/21/2007
Status: offline

keep it simple first....plugs, air filter dirty, injectors dirty, old gas. You said you just bought it right? Work through the basic systems and see if cleans up.

(in reply to letsride)

Post #: 5

RE: Hesitation problem? - 7/1/2008 6:09:28 AM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

Yeah just bought it and that makes sense. Its at 12K miles so im going to do a tune up and see if that helps. Thanks

(in reply to sc929)

Post #: 6

RE: Hesitation problem? - 7/2/2008 10:45:41 AM

Hung88

Posts: 14
Joined: 3/19/2008
Status: offline

I have same problem....I mod flywheel for lightening and 10k rpm balance..

But before I mod flywheel, My harness burning...

Now I have done rebult my wirning harness to be connected well..

Will it be Flywheel problem?
[IMG]http://i72.photobucket.com/albums/i161/Hung-2006/IMAG0089.jpg[/IMG]
http://i72.photobucket.com/albums/i161/Hung-2006/IMAG0089.jpg

< Message edited by Hung88 -- 7/2/2008 12:15:26 PM >

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http://www.wretch.cc/album/Hung996

(in reply to Kolincj)

Post #: 7

RE: Hesitation problem? - 7/6/2008 2:19:09 PM

Hung88

Posts: 14
Joined: 3/19/2008
Status: offline

Wow...long time to test and found out the problem..

The fuse!! Yes..the problem is the fuse, Before you go to check engine, please clean

the wireness harness and clean the fuse box, take each fuse to clean it,

My problem solve....

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http://www.wretch.cc/album/Hung996

(in reply to Hung88)

Post #: 8

RE: Hesitation problem? - 7/6/2008 7:19:50 PM

jcowick

Posts: 167
Joined: 2/24/2007
From: charlotte nc
Status: offline

mine also does this if i come out of the clutch with to little throttle in first gear,,ive been told its a low end flat spot caused by me having a aftermarket pipe and a chitty k&n with no power commander,,,dont know if it helps but i imagine a pcIII would smooth that flat spot out for ya with the after market yosh

(in reply to Hung88)

Post #: 9

RE: Hesitation problem? - 7/7/2008 8:45:46 PM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

I just had the 12k mile service done and replaced the spark plugs and air filter. I knew before doing all that work that it wasn''t going to solve the problem and I had a feeling that the plugs were not the issue, but I had no clue how this bike was cared for previously and wanted to start on a clean sheet. After riding for a while, one thing I did notice is that only two of the pipes are hot after a short ride (5-10 miles). I assume that it is only running on two cylinders. I then did some research through numerous other threads with the same issue and found out that the majority of the same problems that others have are solved by replacing the fuel pressure regulator. I also am going to check other suggestions such as battery connection and power commander. If it was a power commander....? where is that located and how do I know if there is one installed? thanks

(in reply to jcowick)

Post #: 10

RE: Hesitation problem? - 7/21/2008 5:21:15 PM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

Just thought I let you all know that the problem is fixed. I replaced the fuel pressure regulator and it runs great!!!!

(in reply to Kolincj)

Post #: 11

RE: Hesitation problem? - 7/21/2008 5:55:34 PM

jcowick

Posts: 167
Joined: 2/24/2007
From: charlotte nc
Status: offline

well let me ask u this ,,,did ur bike run just fine all but the hesitation,,,my bike will lug a little down low if i dont come off the clutch with enough throttle ,,is this the same as urs was doing?maybe i have a similar problem

(in reply to Kolincj)

Post #: 12

RE: Hesitation problem? - 7/23/2008 9:42:49 AM

Kolincj

Posts: 6
Joined: 6/30/2008
Status: offline

The bike ran a little better after i got it going, but it I could still feel that it wasn''t as responsive as it should be and it never had smooth acceleration. It would do better when the engine was cold, but as soon as I rode it a couple of miles the problem started. The hesitation as definately noticeable. It would shake and chug pretty hard and I could tell that something was not right. Does yours do it in every gear? It could be the same problem, but if your bike runs fine after you get it going then it might just be that you have to give it some more throttle when starting off.

(in reply to jcowick)

Post #: 13

RE: Hesitation problem? - 7/24/2008 8:20:12 PM

jcowick

Posts: 167
Joined: 2/24/2007
From: charlotte nc
Status: offline

yeah strictly 1st gear for me like said just rolling off the clutch without enough gas i guess...bike runs perfect otherwise ,,,sounds like maybe i dont have a problem after all..thanks for the response

(in reply to Kolincj)

Post #: 14