- Posts: 586
- Thank you received: 50
Threads Weeping - tiny amount
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
26 Oct 2014 00:16 - 26 Oct 2014 00:18 #651741
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Threads Weeping - tiny amount was created by Zephyrrider
Anyone ever had float bowl 4 mm bolts weep through the threads. Very minor but annoying. Not even enough to drip,Its only a few of them at the back of carbs - 1 and 2 - bike always on centre stand
Thanks.
Thanks.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Oct 2014 00:18 by Zephyrrider.
Please Log in or Create an account to join the conversation.
- 650ed
- Offline
- User
Less
More
- Posts: 15344
- Thank you received: 2829
26 Oct 2014 06:22 #651744
by 650ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Replied by 650ed on topic Threads Weeping - tiny amount
Since the gasket surrounds the screw hole it sounds like it's time to replace the gaskets. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
Less
More
- Posts: 18640
- Thank you received: 2098
26 Oct 2014 06:51 - 26 Oct 2014 06:52 #651748
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic Threads Weeping - tiny amount
A less frequent cause of leakage from the float bowl, but sometimes found, is the following:
Some float bowl designs have "ears," which the screws go through to attach the bowls to the main body of the carb.
If a screw is over-tightened, the ear may bend slightly. And in the bent condition, won't allow the float bowl to properly tighten against the gasket.
Usually, the bent ear may be carefully and gently straightened into its original shape/position.
Apologies for bending your ear.
Good Fortune!
Some float bowl designs have "ears," which the screws go through to attach the bowls to the main body of the carb.
If a screw is over-tightened, the ear may bend slightly. And in the bent condition, won't allow the float bowl to properly tighten against the gasket.
Usually, the bent ear may be carefully and gently straightened into its original shape/position.
Apologies for bending your ear.
Good Fortune!
1973 Z1
KZ900 LTD
Last edit: 26 Oct 2014 06:52 by Patton.
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 23018
- Thank you received: 2756
26 Oct 2014 07:54 #651756
by SWest
Replied by SWest on topic Threads Weeping - tiny amount
Try the grease trick before buying new gaskets.
Please Log in or Create an account to join the conversation.
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
- Posts: 586
- Thank you received: 50
26 Oct 2014 15:13 #651790
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Replied by Zephyrrider on topic Threads Weeping - tiny amount
Thanks fellas - i have new OEM gaskets installed ED from PJ Motorsports (been in about a year _ @ 3000km) and bowls are the originals and never been abused . They do have the ears at the rear where the prob is Patton.I have a lot of spare bowls so will go through them. Have changed the bolt head type from phillips - 4 mm x 18.5 mm - originals to allan head 4mm x 16 mm .Only diff between 2 bolts is spring washer on originals (others seal perfectly).Have had this happening on and off (mostly off thankfully) for about a year now before i installed new orings and float needles.(started in the hot about a month before new parts)
It started to get hot here the other day (@30 celcius) and like clockwork the weep begins.Took them off ,had a real good look and only spot i can see any sign of fuel is the bottom of 3 threads 1 and 2 carb.Have some Loctite 542 thread sealant.Never used it before - thought might be worth a try.Got a few things to try .Thanks swest.
One other thing is i always get fuel from the same place - seems to be a few dodgy ones about with all sorts of crap mixed in,
Thankyou.
It started to get hot here the other day (@30 celcius) and like clockwork the weep begins.Took them off ,had a real good look and only spot i can see any sign of fuel is the bottom of 3 threads 1 and 2 carb.Have some Loctite 542 thread sealant.Never used it before - thought might be worth a try.Got a few things to try .Thanks swest.
One other thing is i always get fuel from the same place - seems to be a few dodgy ones about with all sorts of crap mixed in,
Thankyou.
Mick
1994 ZR750 Zephyr C4.
Please Log in or Create an account to join the conversation.
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
- Posts: 586
- Thank you received: 50
26 Oct 2014 15:14 - 26 Oct 2014 15:15 #651791
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Replied by Zephyrrider on topic Threads Weeping - tiny amount
Reckon i will try some different bowls , Patton what is correct method to flatten those ears , Thanks.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Oct 2014 15:15 by Zephyrrider.
Please Log in or Create an account to join the conversation.
- loudhvx
- Offline
- KZr Legend
Less
More
- Posts: 10868
- Thank you received: 1616
26 Oct 2014 15:26 - 26 Oct 2014 15:27 #651793
by loudhvx
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Replied by loudhvx on topic Threads Weeping - tiny amount
Are sure of where the leak is? Sometimes other spots can leak and will appear to be at the bowl gasket. The fuel pipe would leak onto the outside of the bowl gasket and travel around the bowl to appear to be leaking there. The reason I ask is because if the pipe from 1 to 2 was leaking, it would show up on the bowls of 1 and 2.
The fuel level should be below the gasket level, so if it is leaking while the bike is sitting (not running) on the center stand, then the leak must be coming from somewhere above. (If the floats are allowing the bowls to overfill, it would drip from the overflow tubes as well.)
I've never had a bowl gasket or bolt hole leak, but I had a small leak from the petcock that traveled down the fuel line and made it look like the bowls were leaking.
The fuel level should be below the gasket level, so if it is leaking while the bike is sitting (not running) on the center stand, then the leak must be coming from somewhere above. (If the floats are allowing the bowls to overfill, it would drip from the overflow tubes as well.)
I've never had a bowl gasket or bolt hole leak, but I had a small leak from the petcock that traveled down the fuel line and made it look like the bowls were leaking.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Last edit: 26 Oct 2014 15:27 by loudhvx.
Please Log in or Create an account to join the conversation.
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
- Posts: 586
- Thank you received: 50
26 Oct 2014 15:39 - 26 Oct 2014 15:54 #651794
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Replied by Zephyrrider on topic Threads Weeping - tiny amount
I have suspected the fuel pipe also . Fuel levels are spot on - never weeps when sitting. - only when you have been riding for a while - stop and start stuff and in Hot weather.It is always just enough to wipe with finger and get a tiny amount (like sweat). Never enough to drip.Standard jetting, mixtures - 21/2 .close enough to perfect sync.All parts internally in top condition.Petcock tested and spot on.2 Overflows always dry. Will keep looking. Lucky i have 2 sets spare carbs. I 'll get it.Persistence pays off most of the time. Thanks loudhvx.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Oct 2014 15:54 by Zephyrrider.
Please Log in or Create an account to join the conversation.
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
- Posts: 586
- Thank you received: 50
26 Oct 2014 17:32 - 26 Oct 2014 17:33 #651803
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Replied by Zephyrrider on topic Threads Weeping - tiny amount
Nipped up those couple of suspect bolts a flys dick .Just went for a ride (@20 km)Town and highway.It is about 30 celcius at the moment (too bloody hot) seems fine but has done this before. Will see how it goes but other carbs are ready to go on if it is actually the fuel pipe.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Oct 2014 17:33 by Zephyrrider.
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 23018
- Thank you received: 2756
26 Oct 2014 21:17 #651831
by SWest
Replied by SWest on topic Threads Weeping - tiny amount
I wouldn't use sealant. The threads don't go into the carb.
Please Log in or Create an account to join the conversation.
- Zephyrrider
- Topic Author
- Offline
- User
Less
More
- Posts: 586
- Thank you received: 50
26 Oct 2014 23:36 - 26 Oct 2014 23:37 #651837
by Zephyrrider
Mick
1994 ZR750 Zephyr C4.
Replied by Zephyrrider on topic Threads Weeping - tiny amount
swest, i wouldnt use any sealant inside carbs. I figured by a thousand to one chance that fuel was getting past the oring and somehow also getting to the bolt which of course is nowhere near fuel(probably 5 mm away from oring on mine) and making its way down the thread but it would have to travel upwards ,but i have always been very careful cleaning them and all surfaces are in as new condition.More i think about the more impossible it seems. Seems to be ok now after that nip up but have said that before. Could it be possible, with age some need a tiny more tightening (like i said before only a flies dick tighter). Will try a decent ride in a day or 2 and see how it goes,
Thanks.
Thanks.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Oct 2014 23:37 by Zephyrrider.
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
Less
More
- Posts: 18640
- Thank you received: 2098
27 Oct 2014 05:55 #651857
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic Threads Weeping - tiny amount
Diagram, for reference:
www.cmsnl.com/kawasaki-1994-c4-zr750_mod...t/E1611.html#results
If not already done, would check integrity of the o'rings on the various fuel pipes connecting the carb bodies.
And also check for the more remote possibility of a cracked fuel pipe.
Presumably, all the hose connections have already been inspected and found to be leak-free, and with no cracked or deteriorated hoses.
Good Fortune!
www.cmsnl.com/kawasaki-1994-c4-zr750_mod...t/E1611.html#results
If not already done, would check integrity of the o'rings on the various fuel pipes connecting the carb bodies.
And also check for the more remote possibility of a cracked fuel pipe.
Presumably, all the hose connections have already been inspected and found to be leak-free, and with no cracked or deteriorated hoses.
Good Fortune!
1973 Z1
KZ900 LTD
The following user(s) said Thank You: Zephyrrider
Please Log in or Create an account to join the conversation.