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General Category >> Rubber Side Down! >> Mystery M6 x 1.0 x 1" bolt
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Message started by stewmills on 07/30/17 at 21:20:19

Title: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/30/17 at 21:20:19

So I washed both the S40 and the Ninja 250 today. Took them both out for a "blow dry" and all was well. Both rode solid and stable as always.

Was walking down the driveway tonight and found this M6 1.0 x 1" bolt laying in the driveway. I looked over both bikes pretty well (short of taking anything off/apart) and can find no missing bolts or any that match this head stamping. Clearly must be something after market but I checked all of the bolts in my shop supply and no match.

I checked the 4 wheeler as well. No dice.

I can see under the head flange that this bolt has been turned down on something before, but it is pretty darn clean to have been in a motorcycle for a while if in fact it was on a motorcycle?.

I'm wondering if it may have fallen out of my tool bag, which I was messing with this morning, and it fell on the bike and bounced off in the driveway.

So...anyone have any idea where all on the S40 a bolt of this size goes so I check all the right places just to be safe?

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/30/17 at 21:20:58

Head

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 07/31/17 at 03:48:20

That looks a lot like the right side bolts on the chrome headcover caps....on the Savage.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Gary_in_NJ on 07/31/17 at 05:12:03

The recess in the head makes me think it's not OEM Suzuki.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by youzguyz on 07/31/17 at 06:37:05


310A0710010D16100B030E11620 wrote:
That looks a lot like the right side bolts on the chrome headcover caps....on the Savage.


+1
That bolt does have the recess in head.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/31/17 at 06:50:20

It is definitely not OEM Suzuki. I looked all over the bike and no other bolt heads look like that and I do not recall ever having done work on the bike requiring removal of any bolts of that size. The PO never worked on the bike as I got it with just 400 miles on it.

Dave, I'll check those head cover caps tonight. I looked online and #33 is what I assume you are referring to?

Odd thing is my "mystery" bolt is 1" / 25mm long and all of the 6x bolts listed on S40 the parts fiche are at least 50mm or longer. It looks eerily similar to a radiator bolt on the Ninja that I was messing with last year. I am going to back out the one that is in there and see if this one matches the size (head stamps are different) as it may have been a leftover from that project and could have just as easily bounced out of my Ninja trunk.  Do you think NASA would worry with this or just chalk it up to something that isn't mission critical?  ;D

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 07/31/17 at 07:18:24

The bolt I was thinking about is from the other side - but the photo I found shows the bolt heads are not dished.

There is one chrome bolt on the cylinder head cover that does somewhat resemble the one you have....I will get a photo of it tonight.  (Unfortunately the photos that were in the Tech Section were photobucket and they are gone).


Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/31/17 at 09:21:09

Thankfully I have a small lighted borescope so I can look around on top of the head (and other areas) on both bikes without having to take the tanks and farings off.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by ohiomoto on 07/31/17 at 09:46:54

The fact that it seems to have fallen off screams HD to me.  Are you SURE it's not SAE?  ;D

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by SALB on 07/31/17 at 10:21:11

I'm not sure about size, but the head looks a lot like the seat bolts. :-/  I take the seat off everytime I wash the bike.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 07/31/17 at 10:29:28


52515246505856330 wrote:
I'm not sure about size, but the head looks a lot like the seat bolts. :-/  I take the seat off everytime I wash the bike.


The seat bolts aren't 1" long.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 07/31/17 at 10:50:52

As soon as you get tired of trying to figure that out I'm gonna toss another bolt in your driveway.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by norm92de on 07/31/17 at 10:56:45

I checked mine and it looks exactly like yours. :)

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by norm92de on 07/31/17 at 11:04:28

I didn't mention that it is the left side and is 20mm long.

The right side are 25mm long and don't  have the flange.
Maybe they changed slightly from year to year.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/31/17 at 13:00:26

Thanks for the feedback gang.  Here's where we are as of present:

- I checked the DYNA muffler bolts last night and they are all intact.
- I am positive it is an M6 x 1.0 metric, not SAE.  I have a set of bolt and thread gauges.
- I checked my chrome head covers at lunch and they are intact with all required bolts. Mine on the right side have the really wide flange, wider than this bolt does. The heads on the left side were hard to see at a glance, but they are intact.
- I have completed the seat raise mod so the front clip of my seat doesn't use the stock bolts. I have an additional 1" stopper on each bolt and they are both maybe 2" long and both intact.
- The "side" seat bolts are shorter, and plus I don't have these on my side bolts any longer. I have my homemade wing bolt for quick seat removal.

So...the mystery continues. I'll get the borescope out after work and peek around in there and do the same on the Ninja.

My suspicion is that it was a bolt that I either lost in the S40 long ago and it finally fell out of whatever crevice it was in or it bounced out of the trunk of the Ninja. I was messing with the Ninja trunk yesterday morning and some junk I had tucked up in there and it could be a bolt that I threw in there for some reason that found it's way out.


Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Gary_in_NJ on 07/31/17 at 13:56:49


312E282F32350434043C2E22695B0 wrote:
As soon as you get tired of trying to figure that out I'm gonna toss another bolt in your driveway.



I laughed out loud at that one.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/31/17 at 14:15:59

If I ever make it to that part of Texas JOG is going to have hell to pay.  I'm going to throw a whole bucket of nuts and bolts in his driveway, maybe fill his muffler up with a whole bottle of baby powder, wire up his horn to the brake lever switch so every time he pulls the brake the horn honks, and who knows what else.  

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 07/31/17 at 17:39:53

Bring it!

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 07/31/17 at 18:03:34

Ok...I inspected both bikes and can find no apparent evidence of where this mystery bolt goes. I took the radiator bolt out of the Ninja where I had to replace a bolt last year and although it is slightly different, it is also a M6 flange head except it is fully threaded. My thinking (and hope) is that I had a couple of bolts there while replacing the missing one and threw the extra in the Ninja tool bag, which is not unlike me. I guess it jiggled out of the tool bag and trunk of the Ninja and found a home in my driveway. I keep everything, so it must have been once used or 'tested' on something to get the turn marks on it.

It's still gonna bug me though.... :-/

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by pg on 07/31/17 at 20:07:53

Is that the bolt that tightens the muffler clamp, header pipe, exhaust?

Best regards,

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/01/17 at 07:20:28

pg,
I'll check that. IIRC mine is rusted and tarnished (cause I remember trying to clean it once) but you never know. This is just crazy.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by AlexW on 08/01/17 at 10:52:54

Does your bike have the "hidden" bolts on the fender rails that poke through from the inside? I've had one of those shake loose before and it's roughly that size (not sure exactly though).

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/01/17 at 11:16:04

AlexW, on the rear fender, nope. I have replaced those with button head allens when I added the larger rear tire a couple fo years ago.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by ohiomoto on 08/01/17 at 11:25:08

I think if you had Stewmeter Standard bolts, this wouldn't have happened.  Sure this isn't an British Standard Whitworth bolt?  Those old brit bikes are as hard to keep together as the old Harleys!

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/01/17 at 11:44:15


6A6D6C6A686A716A050 wrote:
I think if you had Stewmeter Standard bolts, this wouldn't have happened.  Sure this isn't an British Standard Whitworth bolt?  Those old brit bikes are as hard to keep together as the old Harleys!


Dangit, that must be it. I completely forgot I had my own bolts struck and forged and this is likely one of the leftovers as I was replacing EVERY bolt on my S40 with the new Stewmeter Standards. For some reason, the bike sure does feel looser in the corners now  :o :o :o

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by verslagen1 on 08/01/17 at 11:47:11

I think the fender bolts are M8

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 08/01/17 at 11:48:24

I noticed this in the other thread.....but I guess these don't fall out just cause you washed the bike.


Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/01/17 at 11:56:42


48737E6978746F69727A77681B0 wrote:
I noticed this in the other thread.....but I guess these don't fall out just cause you washed the bike.


That's scary...sunken flange heads and all just like mine. Considering I rode it about 8 miles down the road and back to fuel it up and dry it off and there isn't a big hole in my crankcase I thankfully don't think that's it.  But WOW what a perfect match.

Has to be something that fell out of the tool bag.  I just don't see how both bikes ran perfectly and nothing seemed out of sorts while riding.

New rule.  NO LOOSE BOLTS in the garage! If they are going in a tool bag, they will get double bagged in a ziploc so if they jump out of the tool bag they won't be laying there waiting to worry me silly.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by verslagen1 on 08/01/17 at 12:10:08

Dave/stew, the clutch bolts have bars, not dots.
I don't recall any suzuki bolts with dots.
But I'm limited to '02

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by batman on 08/01/17 at 20:41:49

Just close your eyes,and toss the darn bolt over your shoulder and get on with your life!I'm glad you didn't find a nail you would be inspecting your whole house to see if one was missing!

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/02/17 at 06:48:52


0003160F030C565A620 wrote:
!I'm glad you didn't find a nail you would be inspecting your whole house to see if one was missing!


Oh...but I bet I would find it  8-)

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/02/17 at 06:59:32

Some strategically placed oil on the engine and ground, another bolt or two and Stew would be Stewing in his own juices.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 08/02/17 at 07:39:31

Put some green antifreeze under the Savage.......that'll get them wondering! :-?

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/02/17 at 07:46:17

That's devious enough to get me to appreciate it.
How about taking a roofing nail and scuff the head up good, cut it off and super glue it on the front tire?

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by DavidV on 08/04/17 at 06:47:01

What about one of the bolts on the inside of the rear belt pulley? They hold the ring on the back side of the pulley. mine have the recessed head like you show. Just a thought and there are quite a few of them.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by Dave on 08/04/17 at 07:20:09


1134233C3103343B113A3B263039550 wrote:
What about one of the bolts on the inside of the rear belt pulley? They hold the ring on the back side of the pulley. mine have the recessed head like you show. Just a thought and there are quite a few of them.


Those bolts are very short....not 1 inch long.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/04/17 at 07:27:28

I've found bolts in the road when I rode my ten speed hours a week. I never found a bolt, then a car in pieces down the road. No rattles, no leaks, no biggie.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/04/17 at 07:38:48

This is what I think I should expect in a few more days...

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/04/17 at 08:14:47

Feel up under the fender.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/08/17 at 16:17:31

Did you figure it out?

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by stewmills on 08/08/17 at 20:01:25

Nope. Had to be a stray bolt. Both bikes check out.

Title: Re: Mystery M6 x 1.0 x 1" bolt
Post by justin_o_guy2 on 08/08/17 at 20:33:31

. you should have it neutered.

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