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Thread: stripped bolt hole

Created on: 01/24/15 01:21 AM

Replies: 7

pjizzoatc


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Joined: 07/26/14

Posts: 23

stripped bolt hole
01/24/15 1:21 AM

I stripped a bolt hole that holds the foreman grill on. Should I try and tap some new threads? This is what I get for messing with my bike late at night.

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phildobaggins


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Joined: 12/22/14

Posts: 44

RE: stripped bolt hole
01/24/15 5:05 AM

Yeah you can probably strip those a few times and re tap them a few times safetly. These bolts are not under a lot of tension/stress/ On my first bike I probably had to re-tap holes like 30 times in a year because all the bolts were under tension when installed so bolts often went in at angles.


* Last updated by: phildobaggins on 1/24/2015 @ 5:13 AM *



2013 ZX14R "When in doubt clutch it out"

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VicThing


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Joined: 07/17/14

Posts: 2361

RE: stripped bolt hole
01/24/15 5:20 AM

I agree with Phil, normally if you run a tap through there you'll be able to thread it again ok. Make sure your bolt threads are cleaned off too.

Yep be careful with your bike, it's not like a (steel) car. Handle it with kid gloves or you're going to spend a lot of time retapping bolt holes or worse. Fortunately I learned my lesson with my first bike. There's nothing quite like the experience of tightening a small bolt, and wondering if it's ever going to actually torque, hearing a distinct metallic ping, and like pushing up a daisy the head popped off!

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untamed


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Location: RSA

Joined: 08/18/13

Posts: 347

RE: stripped bolt hole
01/24/15 6:18 AM

I'm assuming it's the bolts on the frame side. The smaller one to the front or middle is a rubber grommet with a brass thread insert. Almost the same type that your screen bolts go into into. This one can just be replaced.


* Last updated by: untamed on 1/24/2015 @ 6:19 AM *



Life begins at 40.......The fun starts at 240.
Now riding 2014 ohlins ZZR 1400, Z 750, GPZ1100ZX, ZZR1100, Hayabusa, GSXR1000, 2009 ZX14 special edition.

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VicThing


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Joined: 07/17/14

Posts: 2361

RE: stripped bolt hole
01/24/15 6:40 AM

I'm assuming it's the bolts on the frame side. The smaller one to the front or middle is a rubber grommet with a brass thread insert. Almost the same type that your screen bolts go into into. This one can just be replaced.

I about wrote this exact thing. Then I thought it's most likely the frame side anyway...

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pjizzoatc


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Joined: 07/26/14

Posts: 23

RE: stripped bolt hole
01/25/15 11:22 AM

I fixed it yesterday after work. I had to pick up a metric set of dies and taps. It worked like a charm. Thanks for your help guys

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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: stripped bolt hole
01/25/15 12:51 PM

If I'm not mistaken...mixing up those bolts can create problems...the tips are conical...if you put one in there that has a plain flat thread start...those can easy strip out the first several threads in the hole....if the insertion angle is off by just a little bit.They mostly all look the same...but the tips are different on some of em.

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Rook


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Joined: 03/28/09

Posts: 20579

RE: stripped bolt hole
01/25/15 9:19 PM

glad you fixed it. I have to get a set of those dies some day for making my own brackets and stuff.

I can't say for sure but I would think any M5 bolt will thread in just fine to M5 threads as long as the there are the same # of threads/cm. There are different pitches but if the bolt and the hole threads are the same, they should all go together just fine. Any screw has a slight taper on the first thread so it goes in smoothly...unless you cut it off with a hacksaw. Then you have to bevel it down a bit with a grinder and sandpaper it so it's very smooth.

right?



'08 MIDNIGHT SAPPHIRE BLUE Now Deceased

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