An old thread, but for what it's worth, because I just had to remove the mirror cover, and just in case it might help someone else, I thought I'd add some remarks here. With pictures.
:worthless:
Pardon the salt spray on the CTX1300 deluxe in these pictures. Figure numbers are in the upper right corners of the pictures. My reason for removing the mirror shroud/cover was to replace the turn signal. Rock of some sort, I suppose. Didn't stop at the time. Note that the impact did not dislodge the mirror shroud/cover.
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#1 . $72 -- Aaaaarrrrgggghhhh!
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#2 . Pull the shroud/cover straight away from the body following the trajectory of the pink arrow. The green circles point out the three "retention pins" that you will be pulling loose from the body. It takes a bit of oooommmmph, but you are unlikely to damage anything if you pull straight out. The shroud-turn-signal assembly will hang at the side of the body held by a screw through the retaining strap. If you have to remove the shroud/cover, you have to remove this screw in the blue circle. The blue arrow points to the cable tie (cum wire-strap/ligature) that holds the turn signal wire/cable lead. It is the tail of the cable tie that functions as the retaining strap for the shroud/cover. You will not want to damage this cable tie or its ability to provide its two functions. The yellow arrow points to the turn signal cable connector which has a retainer clip molded into the connector body. The purple circles show the sockets that hold the shroud retention pins when all is completely assembled.
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#3 . A different view of some of the same stuff. The yellow circles show the pin sockets. The green circles show the mushroom shape of the retention pins.
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#4 . Green circles show the three screws that must be removed to replace the turn signal assembly.
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#5 . A thumb push is enough to release the turn signal wire connector clip. After the screw has been removed from the retaining strap, you can loosen the cable tie by slipping a thin screwdriver in the head of the cable tie and then pull the tail of the tie back through the head until you have enough slack to slide the turn signal connector through.
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#6 . Just another map. A closer view of the retaining strap (green arrow), the cable tie ligature (blue arrow), the mushroom shape of the shroud retention pin, and the four metal claws in the retention pin socket. A thumb and finger squeeze of the metal claws will cause them to grip the head of the pin a bit better.
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#7 . Get the shroud/cover aligned before giving it a pop to seat the retention pins.
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#8 . Remember to push the top tab of the black shroud insert back into the slot in the mirror shroud/cover.