4mm thread just about had it.

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25 Feb 2015 14:54 #662765 by Zephyrrider
4mm thread just about had it. was created by Zephyrrider
What would you recommend to rebuild a 4 mm thread for 1 x vacumn cap - only have a few mm length to play with, Thanks,
Mick.
Mick
1994 ZR750 Zephyr C4.

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25 Feb 2015 15:47 #662767 by martin_csr
Replied by martin_csr on topic 4mm thread just about had it.
Maybe post a photo of what's messed up.
1981 KZ650 Competition Sports and Road
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26 Feb 2015 14:21 - 26 Feb 2015 14:45 #662819 by Zephyrrider
Replied by Zephyrrider on topic 4mm thread just about had it.

Attachment WornThread.jpg not found


No 3 carb - choke bracket mounting point. Just needs something to give it a little bite again.There is some thread but not quite enough. These are a spare set so no urgency, Thanks, Mick.
Mick
1994 ZR750 Zephyr C4.
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Last edit: 26 Feb 2015 14:45 by Zephyrrider.

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26 Feb 2015 14:29 #662820 by moneypit
Replied by moneypit on topic 4mm thread just about had it.
Maybe try a sae/not metric. I had to do that on my 29s for a float bowl Slightly bigger than the metric size. Just a thought.
2-76 kz900
St Paul MN

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26 Feb 2015 14:47 - 26 Feb 2015 14:48 #662821 by Zephyrrider
Replied by Zephyrrider on topic 4mm thread just about had it.
Moneypit Thanks for that mate but i will try and build it up first - like to keep em all the same size,
Mick.
Mick
1994 ZR750 Zephyr C4.
Last edit: 26 Feb 2015 14:48 by Zephyrrider.

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26 Feb 2015 15:25 #662824 by 80B4
Replied by 80B4 on topic 4mm thread just about had it.
I've used a helicoil for repairing carb. McMaster.com and MSC have the kits.
1980B4 1000
1978 Z1R
1978 B3 750

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26 Feb 2015 16:15 #662827 by 650ed
Replied by 650ed on topic 4mm thread just about had it.
If not helicoil you may want to have a timesert installed. You may be able to find a local machinist who can do it rather than buying a rather expensive kit for just 1 hole. Here's a link to the timesert site. Ed

www.timesert.com/html/mtrcsert.html
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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26 Feb 2015 20:27 #662854 by Zephyrrider
Replied by Zephyrrider on topic 4mm thread just about had it.
Thanks for your advice - will look for a local i reckon. Couldn't see any prices for singles or kits of the timeserts - will check out the website anyway. It is very rare for me to need to do this sort of job- always very careful with that soft stuff. Mick.
Mick
1994 ZR750 Zephyr C4.

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26 Feb 2015 21:32 #662859 by SWest
Replied by SWest on topic 4mm thread just about had it.
I just bought the coils and tap. I used a small screw driver to install them. Here we have fastinal, do you have a bolt vendor there?
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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27 Feb 2015 10:49 #662885 by MDZ1rider
Replied by MDZ1rider on topic 4mm thread just about had it.
For a low torque screw like that, I've covered the screw threads with oil and then a thin layer of JB weld. Install the screw as normal. Allow the JB weld to set and back out the screw. The JB weld bonds to the clean surface of the carb, but not the oil covered threads of the screw. Instant new threads. This isn't a solution for every stripped hole, but does work in the right situations.
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27 Feb 2015 14:43 #662912 by Zephyrrider
Replied by Zephyrrider on topic 4mm thread just about had it.
Thanks MDZ1rider - $15 for JBWeld at local store - will give it a shot - sounds like JB would be great for lots of jobs.
ED and Steve we have a reseller for timesert here - a M4 x 0.7 kit of 5 inserts would be $55 so not too bad.
Will give the JB a go first,
Mick.
Mick
1994 ZR750 Zephyr C4.

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27 Feb 2015 16:24 #662918 by 80B4
Replied by 80B4 on topic 4mm thread just about had it.
I just took a look on google.com and a 4mm helicoil kit is less than $36 delivered. It is a cool tool and you will have it forever.
1980B4 1000
1978 Z1R
1978 B3 750

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