Side cover tab broke off

  • daveo
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02 Jan 2013 20:14 #565601 by daveo
Side cover tab broke off was created by daveo
I need advice from someone with experience at repairing broke off side cover tabs. :huh:

It needs to be a permanent repair this time; reinforced by adhering it to more of the inside surface of the cover. It has been repaired with two-part epoxy more than one time in the past, which worked ok...but not good enough.
The break is clean and the pieces fit snugly together.

1982 KZ1100-A2

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02 Jan 2013 20:28 #565604 by ramtough_63
Replied by ramtough_63 on topic Side cover tab broke off
soldering gun and a wire tie i have had some gretat sesults lately plastic welding works great

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02 Jan 2013 20:32 #565608 by bluej58
Replied by bluej58 on topic Side cover tab broke off
This is what I did 7000 miles ago and it's holding up just fine.

JD

kzrider.com/forum/6-paint-a-bodywork/510...-cover-repair#511273

78 KZ1000 A2A
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  • Motor Head
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03 Jan 2013 00:07 #565647 by Motor Head
Replied by Motor Head on topic Side cover tab broke off
Harbor Freight has a cheap kit for plastic repair, comes with a wide foot soldering Iron, some different plastic filler, and some steel screen for around $15. Works pretty good. The screen melted into the backside of the broken plastic, then covered with some filler, makes for a strong repair. I fixed a bunch of missing and broken stuff on the $260 Concours I picked up, Including one saddle bag. Haven't had one issue yet with any of the repairs.

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03 Jan 2013 13:13 #565689 by daveo
Replied by daveo on topic Side cover tab broke off
That sounds like a better repair (versus an epoxy by itself).
The break is in a spot where there wasn't much material holding the tab originally, and no gusset backing it up. I'd like to add a strong gusset behind each tab, but don't want to weaken the material in the process. Those tabs are subject to lots of flex-stress.

1982 KZ1100-A2

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03 Jan 2013 22:02 - 04 Jan 2013 12:15 #565778 by kz10006
Replied by kz10006 on topic Side cover tab broke off
Bluej is right The best way is fiberglass cloth and two part resin epoxy it will be much stronger and not flex or crack. Have a good one

Brian
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  • lushbaugh
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04 Jan 2013 15:26 #565851 by lushbaugh
Replied by lushbaugh on topic Side cover tab broke off
i have a plastic welder, reinforce with stainless mesh and melt her back together front and back then repaint.

79 kz1000 ltd all apart
the best advice i can give is dont take dnthavakawmans advice..

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04 Jan 2013 23:05 #565923 by daveo
Replied by daveo on topic Side cover tab broke off
I took a couple pics of the cover/tab to help explain my objective...The finish is original (and excellent), so I want to avoid anything getting on that side, for fear of damaging it. I would like the fix to be minimal, neat, and stronger than the last...

The last repair (two years ago) had tooth-picked two part epoxy spread along the break edge (both sides), and pressed together until cured. Then a thin layer was spread over the seam (on the back) with hopes it would beef up the repair, and allow a little flex.
The repair held up until a couple days ago when I pulled the cover off in haste. The cured epoxy remains on the tab portion, where it separated from the inside surface, and broke away cleanly.

I imagine it would help the adhesion by roughing up the surface before spreading on more epoxy.

The suggestions of using heat, and/or mesh reinforcement, may be more than needed to fix it well enough to hold for a few more years.

Can anyone identify what the plastic is, and what the best bond material and technique would be to use?

1982 KZ1100-A2

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