August 30th, 2016, 05:53 PM | #1 |
ninjette.org member
Name: O
Location: New Jersey
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What is this long bolt under the carbs?
I just noticed a bolt going through the frame right under my carbs was loose. The nut must've popped off.
on the right side of the bike where the nut was. left side where the bolt goes through |
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August 30th, 2016, 06:11 PM | #2 |
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Engine mount! You lost a nut. Get a new one, and torque it properly. 24 ft-lbs is ringing a bell...
Don't ride it until you get this replaced. |
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August 30th, 2016, 06:13 PM | #3 |
ninjette.org member
Name: O
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Thanks!! Do you know what size nut or what thread this is. I left the bolt on the bike, not with me. I want to buy the nut tomorrow.
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August 30th, 2016, 06:15 PM | #4 |
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That is one of the three long bolts that anchor the engine to the frame:
http://www.ronayers.com/oemparts/a/k...1/engine-mount Actually, it keeps the frame from bending, as the engine is a load bearing element of the frame. You need Kawasaki part 92015-1180, which is a flanged M10x1.25 mm hexagonal nut (external diameter of bolt is 10mm with a pitch of 1.25 mm). Use a 14mm socket and apply a torque value of 24 ft-lbs. Although OEM is the correct grade, any temporary nut will keep the bolt from damaging its thread due to vibration and backing out. I have found good quality hardware at PepBoys. The bolt is what does the shearing resistance, while the nut keeps it in place while reduces overall vibrations. If I remember correctly, there is room for two nuts there. Check the one for the lower bolt as well.
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August 30th, 2016, 06:19 PM | #5 |
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I think mine were 10mm. I lost two of them. Now they have loc-tite on them, and paint spots so I can see if they start backing out again.
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August 30th, 2016, 06:24 PM | #6 |
ninjette.org member
Name: O
Location: New Jersey
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ok great!
you think I can find this nut in home depot or lowes. The official stuff will take too long 10mm but tighten with 14mm socket...? |
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August 30th, 2016, 06:27 PM | #7 |
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10mm bolt (inside hole on the nut)
14mm socket (hexagon on the outside of the bolt) Use something local short term. Order the official OEM nut and swap when it gets delivered. Those are not items to be scavenging for a long term solution from the hardware store. |
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August 30th, 2016, 06:33 PM | #8 |
ninjette.org member
Name: O
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Ok Cool! Just ordered
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August 31st, 2016, 08:26 AM | #9 |
ninjette.org member
Name: O
Location: New Jersey
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I ordered OEM but waiting.
In the meantime, I bought this Nut from home depot: M10 x 1.25 but it doesn't continue spinning all the way through. Could the thread be wrong? |
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August 31st, 2016, 08:34 AM | #10 |
Vintage Screwball
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Hmm....parts fiche doesn't give a thread pitch but if I had to guess, it's 10x1.0. That's a common size on motorcycles.
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August 31st, 2016, 10:34 AM | #11 | |
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Quote:
If it won't thread on by hand until seated, it's not right and will mess-up the threads on the bolt if forced. Plan to have some blue Loctite on hand when you put it back together. A Torque Wrench is a good idea also. It's not really torqued that tight (24 ft-lbs) |
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August 31st, 2016, 11:37 AM | #12 |
Vintage Screwball
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On another note, this is an excellent reason why I wash my bikes regularly. It gives you a chance to get up close and personal in all the nooks and crannies to spot things like this. It's not just to have a clean bike.....
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September 3rd, 2016, 07:17 AM | #13 | |
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Quote:
I would just leave the bolt loose until the new nut comes in. Don't take a chance trying to force that nut onto the bolt. The bolt can't actually come out because the fairing blocks it. Just look down there every once in a while and push it back in place if you feel like it. |
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