RS and VM drain plug removal

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RS and VM drain plug removal

22 Apr 2016 12:54
#722393
How can I minimize fuel spillage while removing the bowl drain plugs on these carbs?
1982 KZ1100-A2

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Re: RS and VM drain plug removal

22 Apr 2016 13:27
#722396
For draining my VM24SS carbs I cut a section out of the side of a plastic soda bottle and held that under the drain plugs to catch the fuel when I removed the plugs. Be POSITIVE that the petcock is turned off before removing a drain plug; and remember - NO SMOKING! ;) Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: RS and VM drain plug removal

22 Apr 2016 14:10
#722402
650ed wrote: For draining my VM24SS carbs I cut a section out of the side of a plastic soda bottle and held that under the drain plugs to catch the fuel when I removed the plugs. Be POSITIVE that the petcock is turned off before removing a drain plug; and remember - NO SMOKING! ;) Ed

Thinking ahead to when the carbs will be on the bike, and just how messy those little buggers could be to drain.
Do the plugs need to be completely removed, or just loosened a bit?
1982 KZ1100-A2

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Re: RS and VM drain plug removal

22 Apr 2016 15:04
#722413
They have to come off. The bottom of a milk jug about 2" deep should do it.
Steve

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Re: RS and VM drain plug removal

22 Apr 2016 16:34
#722420
If the bike is running, turn off the petcock and run them as close to dry as possible then at least there's much less fuel to contend with. It's also a good outside job so if any does spill, it will evaporate rather than stinking the garage or shed up.
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400

Old enough to know better, still too young to care

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Re: RS and VM drain plug removal

22 Apr 2016 19:38
#722463
swest wrote: They have to come off. The bottom of a milk jug about 2" deep should do it.
Steve

Makes the BS34 seem pretty user-friendly with the drain screw/nipple setup on the bottom of the bowls...

:unsure: Been thinking about drilling a 3/32" (drain) hole through the drain-plug threads about midway up, so the plugs wouldn't have to be completely removed for the fuel to drain. Seems it would have a more controlled release of fuel rather than a stinky splash, with the drain plug likely to belly-flop into the pool of fuel just to have the last laugh.
1982 KZ1100-A2

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Re: RS and VM drain plug removal

22 Apr 2016 20:20 - 22 Apr 2016 20:23
#722473
There already is a drain hole about half way up (at least there is on the VM24carbs). Ed

Attachment 00003b-2-3-4-5-6-7-8-9.jpg not found

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Last edit: 22 Apr 2016 20:23 by 650ed.

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Re: RS and VM drain plug removal

22 Apr 2016 20:55
#722478
They have large caps over the main jets.
Steve

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Re: RS and VM drain plug removal

23 Apr 2016 02:06 - 23 Apr 2016 05:50
#722492
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650ed wrote: There already is a drain hole about half way up (at least there is on the VM24carbs). Ed

Not on these for some :S reason. These plugs use an o-ring to seal against the bowl.
Well, I guess its time for another experiment...

Below is a (very-nice) version of the plug currently available on ebay, with no holes either:
1982 KZ1100-A2

Last edit: 23 Apr 2016 05:50 by daveo. Reason: revise and add content

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  • KZB2 650
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Re: RS and VM drain plug removal

23 Apr 2016 07:48
#722515
I always use a good sized rag to catch what ever the home made bowl misses too...... my drain plugs got so loose on my smooth bores I had to replace em..... lotta winter draining and jetting........ seems the bowls were made outta slightly better material cause the new plugs tightened things up again..... stockers are fine as they've only been run 7 or 8 years.
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
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29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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Re: RS and VM drain plug removal

23 Apr 2016 09:41
#722537
Wonder if three drain holes would work?

1982 KZ1100-A2

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Re: RS and VM drain plug removal

23 Apr 2016 13:51
#722568
I wouldn't.
Steve

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