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'84 gpz 750 (non turbo) carbs leaking badly
- patso
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01 Aug 2010 16:49 #387514
by patso
'84 gpz 750 (non turbo) carbs leaking badly was created by patso
i've torn apart and compleatly cleaned the carbs on my '84 gpz750 twice (i thought i might have missed something the first time) set the floats and followed ALL the directions in my manual.... they are still flooding out and dumping fuel all over the place. any sugestions are welcome! oh i already thought about throwing lit matches at it, sorry.
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- patso
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01 Aug 2010 17:07 #387520
by patso
Replied by patso on topic '84 gpz 750 (non turbo) carbs leaking badly
to clearify... all the carbs are leaking... before and after i cleaned them out, deff not a single carb issue. once again thanks for any help!!
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- TerryK
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01 Aug 2010 17:46 #387525
by TerryK
1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header
1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc
Ontario, Canada
Replied by TerryK on topic '84 gpz 750 (non turbo) carbs leaking badly
Sticky, dirty or worn out needle and seats. With the fuel on, try tapping on each of the float bowls with the plastic end of a screw driver. This sometimes vibrates the needles into place. Leaking like this can happen even on clean carbs that have been dry for a while. If the leaking doesn't stop, disassemble the carbs again a look closely at the float needles and seats and check for wear.
1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header
1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc
Ontario, Canada
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- PLUMMEN
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01 Aug 2010 17:53 #387529
by PLUMMEN
Still recovering,some days are better than others.
Replied by PLUMMEN on topic '84 gpz 750 (non turbo) carbs leaking badly
what he said.
if that doesnt work run some gas through them on the bench while the bowls are off and see if the needles close when you lift the floats
if that doesnt work run some gas through them on the bench while the bowls are off and see if the needles close when you lift the floats
Still recovering,some days are better than others.
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- TerryK
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01 Aug 2010 17:57 #387531
by TerryK
1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header
1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc
Ontario, Canada
Replied by TerryK on topic '84 gpz 750 (non turbo) carbs leaking badly
PLUMMEN wrote:
Yeah that too!
what he said.
if that doesnt work run some gas through them on the bench while the bowls are off and see if the needles close when you lift the floats
Yeah that too!
1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header
1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc
Ontario, Canada
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- patso
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01 Aug 2010 22:01 #387586
by patso
Replied by patso on topic '84 gpz 750 (non turbo) carbs leaking badly
kewl folks.... out they come again...lol:S
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- Patton
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02 Aug 2010 06:09 - 02 Aug 2010 06:16 #387605
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic '84 gpz 750 (non turbo) carbs leaking badly
Would assure floats aren't installed upside down (as possible in some style carbs).
Am thinking the float needle seats aren't separately replaceable in these particular carbs.
Could consider using Brasso on a Q-Tip chucked in drill to polish the seat orifices.
Would inspect tips of float needles under a bright light with magnification to assure the tips aren't worn or damaged. And are hopefully in "as new" condition.
Good Fortune!
Am thinking the float needle seats aren't separately replaceable in these particular carbs.
Could consider using Brasso on a Q-Tip chucked in drill to polish the seat orifices.
Would inspect tips of float needles under a bright light with magnification to assure the tips aren't worn or damaged. And are hopefully in "as new" condition.
Good Fortune!
1973 Z1
KZ900 LTD
Last edit: 02 Aug 2010 06:16 by Patton.
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- patso
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02 Aug 2010 10:21 #387657
by patso
Replied by patso on topic '84 gpz 750 (non turbo) carbs leaking badly
i've got them on the bench today (again lol) thanks for the input... we'll see how it goes!
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- patso
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08 Aug 2010 11:23 #389338
by patso
Replied by patso on topic '84 gpz 750 (non turbo) carbs leaking badly
thanks for the help folks!!! got her running yesterday, now i'm just waiting for my new filters to come in and i'll be good to go!!.... it was the float needles on the centre 2 carbs (rust flakes jamming them open) oh and you might ask about the need for new filters... lol i had a misshap when a backfire started a blaze in my solvent covered airbox looked realy kewl for a second then panic set in :ohmy: i got it put out before i lost anything else, hahaha
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