Bolt?

should there be a bolt where the forks meet the frame? I've included a picture in just unsure of what it would be called

 

Yes, there should be a pinch bolt there.

 

number 14 on the diagram


Bolt, Socket Head

91316-08040-00 91317-08040-00

Edit removed nut and washer

 

Does Chacal sell it?

 

It's only #14, no washer, no crown nut.

You definitely want that pinchbolt in there!!!! I wouldn't want to be riding that bike without that there!!!

I should have one around here somewhere, if you want to send a conversation my way...

Dave fox

 

What is the toggle switch for?

Gary H.

 

If you don't want to wait on the mail, and have a Fastenall store in town, th

It might be for switching toggles.

 

The PO did something to the wiring and the toggle is how you turn the head light on

 

My guess would be that he screwed it up

 

The way they do.

 

Its just a bolt...M8 or M10...Just go to the hardware store and get one. My local Ace has a fantastic supply of metric hardware.

 

It's a deep-shouldered bolt, with a JIS sized head (smaller than the European metric standard that most hardware stores carry). It's not a bad idea to go look, but he might not find one that won't need to be re-worked to fit correctly.

 

Right; so the bolt he may get will have a 13mm hex instead of 12mm. He could also get a socket head if he wanted. My point was more along the lines of, while the bolt serves a pretty critical purpose, it would be silly to go to great lengths to get a specific bolt- any one of the similar length and diameter would serve well. In a pinch (see what I did there?), a 3/8-16 SAE bolt would likely fit the bill as well, until the proper metric fastener could be acquired. Of course, this all goes out the window if aesthetics are a concern.

 

Or if I just pull one off a parts front end.......

 

It is a cap-head bolt and there is very little clearance for the head to fit into the countersink. Are you seriously suggesting that an SAE bolt will not damage metric threads?

I'm not saying that it's a bad idea to go look locally, just that it isn't necessarily a slam-dunk.

 

Do you have a 650 or a 750? I don't remembered what you have....
I have two bolts for the 750, and one for the 650. The 650 bolt is just a bit shorter, but the 750 bolt fits perfectly, too...... So I got you covered either way----

Dave

 

His signature says '82 650 max.

Gary H.

 

Ok . It is not showing up on my phone though…

 

Mine either until i auto-rotate.

Gary H.

 

I didn't know that you flew helios.

 

I don't.

Gary H.

 

@DrewUth. Maybe I'm just cranky. Forgive my nitpicking. Your point makes sense.

 

This is what we call red neck Loc Tite.

 

There are no threads. Its a bolt and a nut.

 

No worries. I hate SAE hardware on metric bikes more than anyone- but I also have a strong understanding of how things work, and the thread pitch of a bolt and a nut used together is much less important than the diameter and the length, in most situations.

 

Here is the correct bolt that is being sent. This way everyone can see what it is.

Dave Fox

 

Not on a 650. The upper is threaded and the bolt threads in. I see your point on using any nut/bolt that fits in an unthreaded hole but here you need the correct bolt.

 

Odd. My 650 Seca uses just a Nut and a bolt- the upper triple clamp is not threaded.

 

It used to be. Someone messed it up and drilled it out.

 

Same as on a 750, and a 900, and a 550, and........

 

Interesting. It is a cap head, metric bolt with an acorn nut, looks totally factory. Bike only has 3300 miles on it.

 

Yeah I thought about editing it to say "the bike in question" but figured it was good enough for this thread.

 

Could be that there was a change for the 650 Seca. Yamaha did lots of little things differently on some sub-models for no apparent reason.

 

Well, fact is some do take the bolt and nut, BUT the bike in question takes the one shown. THAT is the one asked about........

Would you really be happy if you went to a store and ordered a part, and then you found out that they gave you a "well, it's not the right thing for YOUR bike, but it will fit anyway" part?

I'm thinking probably not.........

I'll look at my 650rj and see what's there tonight......

My xz550 vision doesn't even have a bolt hole or slot for pinching. It's held on only by the top bolt.......

Dave

 

I like Dave. Dave knows everything.

 

You're thinking of Len........

( see, I know that, too......)

 

I'm also thinking of a reason for the difference in pinch-bolt type. The top yoke cover. Models without got the nut-and-bolt arrangement; modles with got the countersunk bolt and threaded yoke type so the cover would be tight to the yoke?

 

I looked at my 650rj non-turbo Seca, and indeed it is a bolt and acorn nut for the 650rj though.....

 

Bam.

 

Which is EXACTLY why we were aiming for the CORRECT bolt

 

lol

 

So now we know that the needed bolt is the threaded bolt with the deep-shoulder metric Allen socket cap for the 650 Maxim, 750 Maxim and 750 Seca.

The only difference between the 65o Maxim and the 750 Maxim/Seca is that 650 cap bolt is slight shorter. IMHO, the 750 cap bolt would be stronger/safer as it goes virtually to the end of the bore/threads and allows not thread contact. Granted, a little pinch is all that is need to secure things, but hey, if its a little stronger/safer I'm all for it.

The 650 Turbo Seca received the threaded Allen-cap bolt that the above-mentioned bikes received.

The 650 Seca ( at least the USA ones) received the bolt w/ nut.

The 700, 700x, and the 900 were solid crowns and did not get a pinch bolt there.

The xj550 Maxims and xj550 secas were solid crowns and did not have a pinch bolt.

The xz550 Vision was a solid crown and did not have a pinch bolt.

The 400 Seca had a solid crown and did does not get a pinch bolt.

Dave