- Posts: 33
- Thank you received: 0
I dont think this is the problem 81 kz550 ltd
- RobQ
- Topic Author
- Offline
- User
Less
More
22 Jul 2010 12:25 #384614
by RobQ
I dont think this is the problem 81 kz550 ltd was created by RobQ
I have a slow drip carb leak out of the first carb overflow tube. When i purchased the bike, this was the main problem along with it not starting. When i got the bike home i completely dissassembled the carbs cooked them in lemon juice and assembled and the bike started. But the number 1 carb still leaks. Others have told me it is dirt between the needle and seat and that is what my shop manual tells me but if it was leaking before i bought the bike, i did a through cleaning, and it still leaks, how could that one and only carb be leaking again??? This is just me procrastinating so i dont have to take the carbs off again really, im trying to sell it and i know that as soon as i take them off, someone is going to want to pick it up immediately and im going to hate myself
Please Log in or Create an account to join the conversation.
- kz750saskatoon
- Offline
- User
Less
More
- Posts: 112
- Thank you received: 2
22 Jul 2010 12:54 #384623
by kz750saskatoon
1981 KZ750-H2
Saskatoon, SK
Replied by kz750saskatoon on topic I dont think this is the problem 81 kz550 ltd
Consider swapping the float bowls between carbs and see if the leak moves with the float bowl.
1981 KZ750-H2
Saskatoon, SK
Please Log in or Create an account to join the conversation.
- Motor Head
- Offline
- User
- FIX UP YOUR BIKE RIGHT AND CHEAP
Less
More
- Posts: 5138
- Thank you received: 391
22 Jul 2010 13:23 #384626
by Motor Head
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
Replied by Motor Head on topic I dont think this is the problem 81 kz550 ltd
Did you adjust the float levels per the factory service manual? How about new float needle and seats? It is also possible to have a float that leaks and therefore sinks causing fuel overflow/ flooding.
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
Please Log in or Create an account to join the conversation.
- apbling
- Offline
- User
Less
More
- Posts: 999
- Thank you received: 12
22 Jul 2010 13:56 #384630
by apbling
Replied by apbling on topic I dont think this is the problem 81 kz550 ltd
+1 to what motorhead said. I have the same carbs on my bike and the needles get a little scoring "ring" around them where they meet the seat and they begin to leak. I'd check Z1 enterprises, they might have just the needles, not the whole rebuild kit. That way you can minimize the hit to the billfold.
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
Less
More
- Posts: 18640
- Thank you received: 2098
22 Jul 2010 15:55 - 22 Jul 2010 15:58 #384655
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic I dont think this is the problem 81 kz550 ltd
Sometimes an overflow tube is cracked.
One way to help diagnose a cracked overflow tube would be to swap with another float bowl, as suggested by kz750saskatoon, and see if the leak moves with the float bowl.
Good Fortune!
One way to help diagnose a cracked overflow tube would be to swap with another float bowl, as suggested by kz750saskatoon, and see if the leak moves with the float bowl.
Good Fortune!
1973 Z1
KZ900 LTD
Last edit: 22 Jul 2010 15:58 by Patton.
Please Log in or Create an account to join the conversation.
- mjg15
- Offline
- User
22 Jul 2010 16:03 #384658
by mjg15
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg
Replied by mjg15 on topic I dont think this is the problem 81 kz550 ltd
As mentioned a couple times above.....the bowls can leak due to issues with the overflow tubes. Remove the #1 bowl and carefully inspect it. You may be able to remove it while the carbs are on the bike if you have a 90 degree screwdriver.
I have several 550's with these carbs and I've had a few bowls that just leak
I have several 550's with these carbs and I've had a few bowls that just leak
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
s163.photobucket.com/albums/t289/mg15_ph...current=DSC01286.jpg
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
Less
More
- Posts: 18640
- Thank you received: 2098
22 Jul 2010 16:28 #384661
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic I dont think this is the problem 81 kz550 ltd
Float needle and seat are supposed to be paired together for life.
General rule is to re-new both at the same time.
In other words, don't re-new one without also re-newing the other.
When re-assembling the carbs incident cleaning, should be careful to fit the same needle with its same seat.
I believe new needles and seats are available from Z1E.
Sometimes polishing the seat orifice helps attain a better seal. A Q-tip soaked in carb cleaner and chucked in electric hand drill may be used to polish the seat orifice.
Good Fortune!
General rule is to re-new both at the same time.
In other words, don't re-new one without also re-newing the other.
When re-assembling the carbs incident cleaning, should be careful to fit the same needle with its same seat.
I believe new needles and seats are available from Z1E.
Sometimes polishing the seat orifice helps attain a better seal. A Q-tip soaked in carb cleaner and chucked in electric hand drill may be used to polish the seat orifice.
Good Fortune!
1973 Z1
KZ900 LTD
Please Log in or Create an account to join the conversation.
- loudhvx
- Offline
- KZr Legend
Less
More
- Posts: 10868
- Thank you received: 1616
23 Jul 2010 10:59 - 23 Jul 2010 11:01 #384945
by loudhvx
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Replied by loudhvx on topic I dont think this is the problem 81 kz550 ltd
When you inspected the float needle, was there a wear ring around the tip? If so, it could just be worn too much to seal. Usually, though, if you run it for a few hundred miles the seat will re-lap the seal. Then it'll leak sometimes and sometimes it'll seal. From then you can just live with it (since i know money is tight and rebuild kits are $20 each).
I have one that leaks every once in awhile, but toward the middle of the season it leaks less and less. At the beginning of the season,especially the first day or two it leaks more. I know the needle and seat are really worn on that one, but I've been putting off replacing all four needle/seat on that bike.
The petcock must be working perfectly, though, or you risk losing a lot of gas. It's more important to have the petcock working right, so I'd spend the money on a rebuild kit for that if it's needed.
I have one that leaks every once in awhile, but toward the middle of the season it leaks less and less. At the beginning of the season,especially the first day or two it leaks more. I know the needle and seat are really worn on that one, but I've been putting off replacing all four needle/seat on that bike.
The petcock must be working perfectly, though, or you risk losing a lot of gas. It's more important to have the petcock working right, so I'd spend the money on a rebuild kit for that if it's needed.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Last edit: 23 Jul 2010 11:01 by loudhvx.
Please Log in or Create an account to join the conversation.