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Idle Circuit completely clogged......
- murr50
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14 Apr 2014 09:00 #628984
by murr50
1977 kz650 C
Idle Circuit completely clogged...... was created by murr50
Ok, so recently I did the pine-sol soak on my carbs. Afterwards, I proceded to spray carb cleaner through all the different passageways (according to the guide floating around here). Anyways, on my #1 and #3 carb it appears the idle circuit is completely clogged with something... I am assuming it is some of this white residue I was finding after I removed the carbs from the pine sol.....
When I plug the pilot intake, and blow on the hole for the idle screw, no air comes out the pilot jet hole..... Hope this makes sense to everyone. I am completely mystified on how to unglod this little passageway... I have tried boiling the carb in water, carb cleaner, and blowing on the hole with all my might, to no avail..... Ive also tried to get a pipecleaner in the hole, but it isn't a straight shot through, and I cannot get the wire to turn and get in the hole...
Anyways, has anyone ever run into this before? I am at a complete loss... It is almost looking like I will need to buy new carbs??
HELP!
Thanks guys
When I plug the pilot intake, and blow on the hole for the idle screw, no air comes out the pilot jet hole..... Hope this makes sense to everyone. I am completely mystified on how to unglod this little passageway... I have tried boiling the carb in water, carb cleaner, and blowing on the hole with all my might, to no avail..... Ive also tried to get a pipecleaner in the hole, but it isn't a straight shot through, and I cannot get the wire to turn and get in the hole...
Anyways, has anyone ever run into this before? I am at a complete loss... It is almost looking like I will need to buy new carbs??
HELP!
Thanks guys
1977 kz650 C
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- baldy110
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14 Apr 2014 10:08 #628990
by baldy110
Replied by baldy110 on topic Idle Circuit completely clogged......
Usually it's the jet that is clogged not the passageway. Have you removed the pilot jet then checked the passegway?
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- murr50
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14 Apr 2014 11:41 #629000
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
Yes, all jets are removed. It is just the carb boddy left. I have the #1 Carb with me at work today. I will take a picture at lunch to show better what I am talking about, and where I think the clog is.
1977 kz650 C
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14 Apr 2014 12:05 #629004
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
OK so here is a picture of one of the carbs...
When I plug #1, and blow into the air screw hole, nothing comes out of #3.... I am assuming something is blocking the passage around #2...... The only problem, it that it is impossible to get anything down there, on account of all the bends in the passageway.....
I am affraid to put any harsh chemicals down there, but I dont know what other option I have... PS. already tried compressed air...
Been looking at new carb bodies on ebay.....
When I plug #1, and blow into the air screw hole, nothing comes out of #3.... I am assuming something is blocking the passage around #2...... The only problem, it that it is impossible to get anything down there, on account of all the bends in the passageway.....
I am affraid to put any harsh chemicals down there, but I dont know what other option I have... PS. already tried compressed air...
Been looking at new carb bodies on ebay.....
1977 kz650 C
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14 Apr 2014 12:36 #629006
by bountyhunter
1979 KZ-750 Twin
Replied by bountyhunter on topic Idle Circuit completely clogged......
Have you tried soaking it in carb cleaner like Gumout or similar?
You can also shoot cleaner in using a spray can/nozzle (use eye protection).
You can also shoot cleaner in using a spray can/nozzle (use eye protection).
1979 KZ-750 Twin
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- murr50
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14 Apr 2014 13:04 #629010
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
Yes, I've used about 1/2 a can of spray cleaner down there.
I will try some Gumout. Is there any ingredients that I should stay away from? Just don't want to do any more damage
I will try some Gumout. Is there any ingredients that I should stay away from? Just don't want to do any more damage
1977 kz650 C
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14 Apr 2014 14:46 #629014
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
**Gigantic Sigh Of Relief**
Took the carb down to the shop at work at lunch.... They had a nifty air tool with a rubber tip. Got a good seal on the pilot hole, and plugged the intake. Boom! All Clean.
Thank you all for the suggestions. I can sleep again.
Took the carb down to the shop at work at lunch.... They had a nifty air tool with a rubber tip. Got a good seal on the pilot hole, and plugged the intake. Boom! All Clean.
Thank you all for the suggestions. I can sleep again.
1977 kz650 C
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14 Apr 2014 15:52 #629022
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
After doing a bit more reading and looking... It appears my carbs are really pitted (see the attached picture in the post above)
How bad does this look to you guys?
Will I need to scrap these carbs. It doesn't look great to me. Any thoughts?
How bad does this look to you guys?
Will I need to scrap these carbs. It doesn't look great to me. Any thoughts?
1977 kz650 C
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- 74ullc
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14 Apr 2014 19:38 - 14 Apr 2014 19:40 #629050
by 74ullc
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
Replied by 74ullc on topic Idle Circuit completely clogged......
I'm not an expert but if it were mine I would put it all back together and run it. Whats the worst that could happen? It won't run right, leak fuel everywhere? No reason not to try them.
Is this a new to you bike you are working on? Have you had it running before?
If not and you get it back together and it doesn't run right don't immediately blame the carbs. That would be easy to do since you think there is something wrong with them. It would be first in your mind. But lots of other things it could be too.
What came out of the hole when you hit it with the air today?
Is this a new to you bike you are working on? Have you had it running before?
If not and you get it back together and it doesn't run right don't immediately blame the carbs. That would be easy to do since you think there is something wrong with them. It would be first in your mind. But lots of other things it could be too.
What came out of the hole when you hit it with the air today?
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
Last edit: 14 Apr 2014 19:40 by 74ullc.
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15 Apr 2014 07:36 - 15 Apr 2014 07:48 #629094
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
No, it isn't a new bike. I was having issues with sticky floats last year, so I tried a pine sol soak. I left them in for 4 days not knowing of the corroding effect the pine sol would have on the zinc/aluminum.
When I took the carbs out, there was all this grey sludge in the bottom of the bin.. The insides of the carbs were a bit pitted.
You are right though. I will definately try them out. If all goes to hell, there are plenty of replacements on flea bay.
Oh, and it appeared to be some white gummy residue from the pine sol that blew out of the hole.
When I took the carbs out, there was all this grey sludge in the bottom of the bin.. The insides of the carbs were a bit pitted.
You are right though. I will definately try them out. If all goes to hell, there are plenty of replacements on flea bay.
Oh, and it appeared to be some white gummy residue from the pine sol that blew out of the hole.
1977 kz650 C
Last edit: 15 Apr 2014 07:48 by murr50.
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15 Apr 2014 10:13 #629119
by 74ullc
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
Replied by 74ullc on topic Idle Circuit completely clogged......
I've heard of the pine sol dip. Where did that come from? I saw a thread on another forum where it discolored the carb dark gray almost black in places! It's been awhile but I remember them saying to not do it.
Maybe its ok for a short soak?
Those are VM24SS? If so then yes, plenty of those on ebay.
Maybe its ok for a short soak?
Those are VM24SS? If so then yes, plenty of those on ebay.
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
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- murr50
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15 Apr 2014 16:13 #629149
by murr50
1977 kz650 C
Replied by murr50 on topic Idle Circuit completely clogged......
Ya, I first saw it on the kz650.info site. It seemed like a good idea... 20 20 hind sight is a wonderful thing.
But yes, VM24 carbs
But yes, VM24 carbs
1977 kz650 C
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