right mirror

[dodjh]

Part of my right side mirror threads broke off in the perch. I drilled it out but final drill bit was too large. (standard/not metric) I tried PC-7 and waterweld---didn't work. I have been unsuccesfully in trying to find a left hand thread helicore kit.
Any suggestions--this is a 82 XJ 1100. I thought about JB Weld but figured it wouldn't be any better than the other two cold weld products.

dodjh

[randy]

How about;

Drill in horizontally, tap it and install a lock bolt with lock-tite.

[dodjh]

right mirror

Randy,
Sounds intresting---I have a 5/16 hole, so you want me to drill a horizontal hole, place mirror in hole, (this is left hand thread and the hole even if tapped will be too large of a diameter than the 10mm size mirror stem). Please fill me in.

dodjh

[randy]

It's a common set-screw arrangement.

You have a cylindical mount. Drill a small (5 or 6mm) hole in the side, tap the hole according to the size you drilled. Install a bolt in the hole you made. Install your mirror stem and tighten the bolt to capture the mirror stem.

if you go one step further and get a pointed set screw, you can drill a corresponding relief in the mirror stem, that will lock it in place to keep it from accidentally spinning.

I hope that's clear.

[dodjh]

right mirror

Randy,

OK, I read you now--thats a smart idea. That will be me my next move.
Thanks,

dodjh

[tarzan]

How about tap it for a right hand helicoil and install a mirror with right hand threads.You might even have more choices on mirrors that way.JAT

[dodjh]

right mirror

JAT,
I thought of doing that, but figured the left hand thread used on the right was designed/engineered for that application.

dodjh

[fredintoon]

Another uneccessarily brilliant idea

" I thought of doing that, but figured the left hand thread used on the right was designed/engineered for that application."
Hi Dodjh,
remember when Dodge/Plymouth used L/H wheel nuts on one side? Didja ever see a wheel fall off one after they quit doing it?
Me neither. And there's a conspicuous lack of non-Yamaha right-side mirrors decorating the highways too.
Cross-drilling for a keeper bolt will let you use a Yammie mirror but will bitch the adjustment so get it right eh? Or salvaging the stripped out hole with a normal R/H M10 helicoil will let you use an aftermarket mirror.

[dodjh]

right mirror

Hey Fred,

Thanks for the feedback---you are saying it would be ok to install a right hand thread helicore kit on the left side? I remember the L/H thread on the Dodge/Plymouths, I worked at a service station when I was a young/old teenager.
The hole diameter is now 5/16, so I hope the 10mm size hole
helicore kit will work.

dodjh

[fredintoon]

Try a Time-Sert?

" The hole diameter is now 5/16, so I hope the 10mm size hole helicoil kit will work. "
Hi Dodjh,
if the 5/16" is too big for an M10 Helicoil to work, try a Time-Sert. A Time-Sert insert has a definite wall thickness instead of being a coil of thread and so may need a bigger special tap.

[AlanB]

Hi Dodjh,

Yamaha used a L/H thread on the right mirror so that if the mirror gets knocked, it comes loose, instead of overtightening in the ally; in most incidents, they get knocked back, not forward!

ALL the other manufacturers used standard threads both sides.

When I first started working in bike shops (1978?) we caried a range of adapters to fit all sorts of mirrors into all sorts of holes; LtoR hand and RtoL hand adapters plus 8to10mm and 10 to8mm 'cos some of the small Hondas used 8mm mirrors. I have not seen any of those for years, but they must be out there somewhere!

Would let you T-sert back to 10mm then fit an adaptor and your original mirror.

AlanB

[dodjh]

right mirror

Hey Fred and Alan,

Thank you for your viewpoints. I understand Yamaha's reason for the left handed threads now. I have never used a T-sert and will research its use. I would like to go back factory so I'll have to be carefull with the T-sert or heilicore.
I'll try and find a Honda version mirror or do the right hand thread heilicore.

Thanks again,
dodjh

[tarzan]

I have a helicoil chart right here.
For a 10mm x 1 helicoil you need a .404 drill(standard 13/32 .406 will work)
I would do that .The trisert may be too big outside diameter to leave enough material on the boss.You may want to check how thick it is.

[dodjh]

right mirror

Tarzan,
Thank you for the drill bit size on the 10mm X 1" helicore---that would be just a little bigger than a 3/8 bit if I did my math correctly.
The present hole is about 5/16, so I'm still in the ball game.

dodjh

[cloerts]

bar end mirrors dude, infinitey more adjustable and way more stylish