MotoHouston.com MotoHouston.com
Register Members List Member Map Media Calendar Garage Forum Home Mark Forums Read

Go Back   MotoHouston.com > Technical > How To's and Q & A's
Forgot info?

Welcome to MotoHouston.com! You are currently viewing our forums as a guest which gives you limited access to the community. By joining our free community you will have access to great discounts from our sponsors, the ability to post topics, communicate privately with other members, respond to polls, upload content, free email, classifieds, and access many other special features. Registration is fast, simple and absolutely free, join our community!

Register Today!

If you have any problems with the registration process or your account login, please contact us.


Like us on Facebook! Regular shirt GIVEAWAYS and more

Advertisement

Reply
Share This Thread: 
Subscribe to this Thread Thread Tools
Old 11-11-2007, 02:25 PM   #1
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Wierd problem with 99 CBR600 F4, vid inside-->

I was riding it a few weeks back, went through 1st, 2nd, then 3rd, only shifting at about 9k RPMs. Once I shifted into 3rd, I hear this weird sound and basically lose all power. It still runs, just basically have no power... It sounds like really loud lifter tick or a leaky manifold, anyone have suggestions as to what it could be?

Here is the vid- http://www.youtube.com/watch?v=qAtyjkIU_NE
toolfan91 is offline   Reply With Quote
Similar Topics
Thread Thread Starter Forum Replies Last Post
Front brake on CBR600 F4 humming fastcar302 How To's and Q & A's 5 01-10-2012 02:56 AM
HALP! Front brake problem. CBR600 F4 _BLKCBR_ How To's and Q & A's 7 06-18-2011 03:59 PM
Should I turn my CBR600 F4 into a Streetfighter? Poll inside toolfan91 General Discussion (Moto Related) 20 06-24-2008 11:40 PM
'99 R6 Problem? Can you help? Ridesmart General Discussion (Moto Related) 24 03-02-2008 10:55 PM
how do I drain coolant on a 99 f4 ?? Silver Bullet How To's and Q & A's 7 06-02-2007 07:10 PM
Advertisement
Old 11-11-2007, 02:28 PM   #2
stunterdude
Senior Member
 
stunterdude's Avatar
 
Join Date: Jan 2006
Location: cypress
Feedback Rating: (6)
Posts: 2,156

Experience: 6 years

Bike(s):
04 zx10,03 gsxr600,2001 f4i, 03 gsxr 1000, 2006 yzf250,2004crf150,2006 crf 450r,2001 929,06 klx 110




Member Garage





Send a message via AIM to stunterdude
that sounds horrible!
__________________
Please contact Solracer about sponsorship
stunterdude is offline   Reply With Quote
Old 11-11-2007, 02:34 PM   #3
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Quote:
Originally Posted by stunterdude View Post
that sounds horrible!
I know :( I could rip into the head and see if its a broken lifter or valve spring, but between school and my broke hand I just can't do that anytime soon. Thinking about just taking it to a Kawasaki dealership that is real close to me :(
toolfan91 is offline   Reply With Quote
Old 11-11-2007, 02:45 PM   #4
Steve O Chap
Big Hero
 
Steve O Chap's Avatar
 
Join Date: May 2005
Feedback Rating: (0)
Posts: 1,902

Experience: 10+ years
Trackdays: 10+

Bike(s):
1995 Suzuki RF600 - Sold
1993 Honda Shadow - Sold
2001 CBR F4i - Sold







Quote:
Originally Posted by toolfan91 View Post
I know :( I could rip into the head and see if its a broken lifter or valve spring, but between school and my broke hand I just can't do that anytime soon. Thinking about just taking it to a Kawasaki dealership that is real close to me :(
Yeah, that sounds pretty bad. How'd you manage to do that to a Honda?!! I kiiid I kiiiid....

I'd take it to Motorcycles Unlimited... dealerships come with too much baggage IMO.
__________________
My bicycle costs more than your motorcycle...
Steve O Chap is offline   Reply With Quote
Old 11-11-2007, 02:50 PM   #5
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Quote:
Originally Posted by Steve O Chap View Post
Yeah, that sounds pretty bad. How'd you manage to do that to a Honda?!! I kiiid I kiiiid....

I'd take it to Motorcycles Unlimited... dealerships come with too much baggage IMO.
I honestly have NO clue, I did just email patrick from Motorcycles Unlimited though, thanks
toolfan91 is offline   Reply With Quote
Old 11-11-2007, 02:53 PM   #6
Slowkat
Nutty Buddy
 
Slowkat's Avatar
 
Join Date: Nov 2006
Location: North Houston
Feedback Rating: (0)
Posts: 791












Send a message via AIM to Slowkat
Cant tell for sure because of the sound quality, but it sounds almost like a spun bearing.
__________________
2003 GSX-R 750
Slowkat is offline   Reply With Quote
Old 11-11-2007, 02:54 PM   #7
witchdoctor575
certified shutterbug
 
witchdoctor575's Avatar
 
Join Date: Aug 2005
Location: Alvin
Feedback Rating: (11)
Posts: 23,547

Experience: 10+ years
Trackdays: 1

Bike(s):
07 triumph D675(sold)
05 busa LE (sold)
03 rc51 (sold)
99 superhawk (wrecked)
01 shadow 1100 (sold)

Member Garage





i had a 750 magna that sounded like that after dropping a lifter.
witchdoctor575 is offline   Reply With Quote
Old 11-11-2007, 03:08 PM   #8
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Quote:
Originally Posted by Slowkat View Post
Cant tell for sure because of the sound quality, but it sounds almost like a spun bearing.
I hope thats not the case :(

Quote:
Originally Posted by witchdoctor575 View Post
i had a 750 magna that sounded like that after dropping a lifter.
Yeah, thats what I've been thinking... Its only coming from the number 1 cylinder head too, 2,3,4 sound perfectly fine.
toolfan91 is offline   Reply With Quote
Old 11-11-2007, 04:58 PM   #9
FLYIN'DUC
Senior Member
 
FLYIN'DUC's Avatar
 
Join Date: Apr 2007
Location: Cleveland, Texas
Feedback Rating: (7)
Posts: 6,254


Bike(s):
07 Ducati, 99 Busa









Sound quality isint great, highly suggest not running it anymore, even tho the damage is allready done, could get worse, take it to Patrick, or at least someone who know,s whats up
FLYIN'DUC is offline   Reply With Quote
Old 11-11-2007, 06:07 PM   #10
bumblebee
Yeah I'm flippin' YOU off
 
bumblebee's Avatar
 
Join Date: Oct 2006
Location: Pearland
Feedback Rating: (3)
Posts: 12,270


Bike(s):
'74 Suzuki GT380
'82 XS650 StreetTracker
'10 Ducati Streetfighter
'83 Yamaha Seca 900






How do you drop a lifter?

I thought most bikes were shim/bucket, valve actuation...
__________________
Asphalt is for racing... dirt is for growing potatoes. - J. Diester
When seconds count... the police are only minutes away.
Grow up and be a productive member of society already.
Bevo- "I lack skillz"
bumblebee is offline   Reply With Quote
Old 11-11-2007, 06:30 PM   #11
90 5.0
frequent crasher
 
Join Date: Sep 2007
Location: Atascocita
Feedback Rating: (0)
Posts: 561


Bike(s):
98 gsxr 600









Sounds valvetrain related?

have to hear it in person to really tell good luck with it.
90 5.0 is offline   Reply With Quote
Old 11-11-2007, 07:27 PM   #12
CaligoneTx
Forest Gnome Tour Guide
 
CaligoneTx's Avatar
 
Join Date: Sep 2007
Location: Valhalla
Feedback Rating: (1)
Posts: 21,558

Experience: 10+ years

Bike(s):
Triumph 675r
Ducati 748
Hyosungs (250r + 650r)
Honda 900rr
Suzuki Busa1300r (+2 bikes)






Send a message via AIM to CaligoneTx Send a message via Yahoo to CaligoneTx
If its harmonical and can be felt through the block, grab a vacuum hose, pull the tank and try to hear where the noise is most imminent... And yes, to run it too much...
__________________
triumphsig
CaligoneTx is offline   Reply With Quote
Old 11-11-2007, 07:32 PM   #13
Patrick
Motorcycles Unlimited
 
Join Date: Jun 2005
Location: Houston
Feedback Rating: (2)
Posts: 16,368

Experience: 10+ years
Trackdays: 10+

Bike(s):
'14 Speed Triple R, '82 CB900F, '13 Streetglide






Sounds like possibly a bent / dropped valve.
If you bring it by I'll give it a listen in person and a probable diagnosis, no charge.
__________________
Call or PM for the BEST PRICES in Houston for PARTS and ACCESSORIES.
MAKE SURE TO MENTION YOU'RE ON MH TO GET THE BEST PRICE!

NEED GEAR? We have a great selection in stock but if we need to order it we GUARANTEE FIT!
Where Houston riders go to have their bikes worked on, done right the first time!


muad

1964 FM 1960 West
Houston, TX 77090
Hours: Tues.-Fri. 9:30-6:00 Sat. 9-5:30
www.motorcycles-unlimited.com
http://www.facebook.com/motorcyclesunlimited
e-mail: patrick@motorcycles-unlimited.com
Patrick is offline   Reply With Quote
Old 11-11-2007, 08:29 PM   #14
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Quote:
Originally Posted by bumblebee View Post
How do you drop a lifter?

I thought most bikes were shim/bucket, valve actuation...
You can't drop a lifter, but it somewhat sounds like the valves aren't opening/closing properly for cylinder 1, maybe a broken lifter?

Quote:
Originally Posted by 90 5.0 View Post
Sounds valvetrain related?

have to hear it in person to really tell good luck with it.
Definitely valvetrain related, just on cylinder 1 too :( The exhaust manifold tubing for cylinders 2,3,4 are all really hot to the touch once the bike is warmed up, cylinder 1 is just warm. The sound is just coming from the head @ cylinder 1, so I guess thats better than coming from 2 or more:/:

Quote:
Originally Posted by Caligonetx View Post
If its harmonical and can be felt through the block, grab a vacuum hose, pull the tank and try to hear where the noise is most imminent... And yes, to run it too much...
Its definitely coming from the head @ cylinder 1, but thats as far as I've got.

Quote:
Originally Posted by Patrick View Post
Sounds like possibly a bent / dropped valve.
If you bring it by I'll give it a listen in person and a probable diagnosis, no charge.
Cool, Im going to try and make it out there sometime during this week. Thanks Patrick
toolfan91 is offline   Reply With Quote
Old 11-11-2007, 08:32 PM   #15
hardcoresteve
Hero since birth
 
hardcoresteve's Avatar
 
Join Date: Feb 2007
Location: League City
Feedback Rating: (1)
Posts: 4,850

Experience: 10+ years
Trackdays: 10+

Bike(s):
2007 R6s
1983 FS50 moped








Send a message via AIM to hardcoresteve
sounds like my buddys truck when his oil pump went out and the lines were clogged...
hardcoresteve is offline   Reply With Quote
Old 11-11-2007, 09:15 PM   #16
CaligoneTx
Forest Gnome Tour Guide
 
CaligoneTx's Avatar
 
Join Date: Sep 2007
Location: Valhalla
Feedback Rating: (1)
Posts: 21,558

Experience: 10+ years

Bike(s):
Triumph 675r
Ducati 748
Hyosungs (250r + 650r)
Honda 900rr
Suzuki Busa1300r (+2 bikes)






Send a message via AIM to CaligoneTx Send a message via Yahoo to CaligoneTx
You done more work then most... exhaust valve not opening.... when the intake valve opens its choking the engine... Whether a valve or lifter compressed(? I thought were shimmed too....)

Aftermarket exhaust?full? no pcm? burnt valve? Ok, I'm just chattin now...

Good diags though w/ muffler temps.... Most don't go that far...
__________________
triumphsig
CaligoneTx is offline   Reply With Quote
Old 11-11-2007, 09:21 PM   #17
toolfan91
Arrrrr
 
Join Date: Jul 2007
Feedback Rating: (1)
Posts: 39


Bike(s):
08 R6









Quote:
Originally Posted by Caligonetx View Post
You done more work then most... exhaust valve not opening.... when the intake valve opens its choking the engine... Whether a valve or lifter compressed(? I thought were shimmed too....)

Aftermarket exhaust?full? no pcm? burnt valve? Ok, I'm just chattin now...

Good diags though w/ muffler temps.... Most don't go that far...
Two brothers exhaust, just a slip on... Thanks

I have quite a bunch of experience within the automotive would, I've rebuilt a 351w and a SBC, done a bunch of work on DSMs, so I have some decent knowledge I suppose. Honestly, if I had the time, I would rip into the head and see whats up(I dont even have to pull the engine to take off the head, thankfully)... Im a student taking 19 hours, that coupled with my hand being broke, it would be EXTREMELY hard for me to do it right now :(
toolfan91 is offline   Reply With Quote
Old 11-11-2007, 09:39 PM   #18
CaligoneTx
Forest Gnome Tour Guide
 
CaligoneTx's Avatar
 
Join Date: Sep 2007
Location: Valhalla
Feedback Rating: (1)
Posts: 21,558

Experience: 10+ years

Bike(s):
Triumph 675r
Ducati 748
Hyosungs (250r + 650r)
Honda 900rr
Suzuki Busa1300r (+2 bikes)






Send a message via AIM to CaligoneTx Send a message via Yahoo to CaligoneTx
ah, broken hand no bueno....

you could probably just pull the valve cover to get a really good idea...

that's a one handedish job....
__________________
triumphsig
CaligoneTx is offline   Reply With Quote
Old 11-11-2007, 09:41 PM   #19
CaligoneTx
Forest Gnome Tour Guide
 
CaligoneTx's Avatar
 
Join Date: Sep 2007
Location: Valhalla
Feedback Rating: (1)
Posts: 21,558

Experience: 10+ years

Bike(s):
Triumph 675r
Ducati 748
Hyosungs (250r + 650r)
Honda 900rr
Suzuki Busa1300r (+2 bikes)






Send a message via AIM to CaligoneTx Send a message via Yahoo to CaligoneTx
Quote:
Originally Posted by toolfan91 View Post
Two brothers exhaust, just a slip on... Thanks
My bad, I meant checking temp of the headers was good.... I forget that sometimes when I'm watching for lean conditions on a vehicle.
__________________
triumphsig
CaligoneTx is offline   Reply With Quote
Reply


Thread Tools

Advertisement


All times are GMT -5. The time now is 01:04 AM.


MotoHouston.com is not responsible for the content posted by users.
Privacy Policy