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CV34 Pilot mixture screws, again
- kz750saskatoon
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The soft brass keeps getting stripped because one of the carb's threads must be rough or something. The threads just begin to catch and it is very hard to turn it. It is not at all like the other 3 adjustment screws.
While I am asking, my thought to try to reduce the resistance those threads are given was to take a tap of the appropriate size and run it through the threads to take off an corrosion or spurs they may have developed. Is this idea a good one?
1981 KZ750-H2
Saskatoon, SK
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- Motor Head
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Threads can be quite a ordeal, if you use the correct tap, be careful not to miss and start a second cut. This would destroy the original thread. It's hard to say without seeing it, but could you clean the area better with a round brass wire brush of the near same diameter?
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...
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- kz750saskatoon
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I thought about the brash brush idea but I did some searching online and at a few local shops and I couldn't find anything near the same size. Any suggestions?
Edit: I just called my local Kaw dealer. They looked it up on their system and it said the part was no longer available.
1981 KZ750-H2
Saskatoon, SK
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- TeK9iNe
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Tapping/Die setting is the only way to restore threads.
Re die the threads on the screw and tap the hole, both with lots of oil, then just screw it in.
GL.
or maybe CyclePartsNation
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79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
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- Motor Head
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I just plugged the part # into my Dealers search function, and it comes up with a price, but I have had a couple of times NLA after a phone call. Did you do a NOS search, ebay? I think you'll get close enough to a kit cost that it would be easier to get a decent kit.
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...
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- JR
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However. I have a couple of used ones which look ok. If you want them send me a PM and you can have them free.
Dont use my email as that address does not work and I cant change it
Be carefull with those threads or with the hole which the point of the screw goes into or you can bugger up the complete carb very easily
1980 kz750E1, Delkevic exhaust
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- havakaw
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'80 KZ 750 LTD-H
'82 KZ 1100 A-2 Shafty (ex-bagger)
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- kz750saskatoon
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Any other suggestions on how to make it a bit smoother? They last hardly any time and get stripped.
1981 KZ750-H2
Saskatoon, SK
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- JR
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Any other suggestions on how to make it a bit smoother? They last hardly any time and get stripped.
Not sure what you mean. Pilot mixture screws get stripped ?
If it's working ok maybe just leave it alone. I think I might have adjusted mine once in the past 3 years, I'm lazy and like the idea of set and forget :laugh:
To make the screw turn smother maybe try cleaning the threads in the carb with a pipecleaner or Q tip and a dab of carb cleaner or WD40.
Good luck
1980 kz750E1, Delkevic exhaust
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- Patton
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Good Fortune!
1973 Z1
KZ900 LTD
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- kz750saskatoon
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The pilot mixture screws get stripped. As you said, since it seems from the plug that the mixture is fine I'll be leaving it.
1981 KZ750-H2
Saskatoon, SK
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