Small hole in airbox -- how to seal it?

Cra1g · May 12th, 2017, 01:07 PM

I went to go change my coolant and took off the overflow tank. Noticed a bunch of oil residue on the backside of the tank, as well as around the corner of the airbox. Then I found this small hole:

What's the best way to seal it up?

P.S. I think my coolant really needed changing. The overflow tank even had a bunch of crap inside..

Triple Jim · May 12th, 2017, 01:37 PM

Does that actually go through to the inside?

Cra1g · May 12th, 2017, 02:17 PM

Quote:

Originally Posted by Triple Jim

Does that actually go through to the inside?

Sure does.

Triple Jim · May 12th, 2017, 02:49 PM

Some ideas:

Put a sheet metal screw in it.

Degrease it and put a glob of silicone sealer on it. It won't stick well, so leave enough outside so it won't migrate into the box.

Degrease and fill it with hot glue. This is probably the best of these three, since it's likely to stick somewhat.

Flying · May 12th, 2017, 03:19 PM

ABS cement

Triple Jim · May 12th, 2017, 03:24 PM

Quote:

Originally Posted by Flying

ABS cement

I'm pretty sure the airbox is polyethylene, so ABS cement won't stick.

Flying · May 12th, 2017, 03:53 PM

Quote:

Originally Posted by Triple Jim

I'm pretty sure the airbox is polyethylene, so ABS cement won't stick.

Huh. The airbox doesn't seem to have the texture of molded PE. I have a spare airbox lying around, so I'll investigate this.

An alternative quick-fix would be to simply melt the corner over the hole.

Triple Jim · May 12th, 2017, 04:20 PM

I'll be interested in what you find out. I'm thinking you're probably right.

Z1R rider · May 12th, 2017, 06:40 PM

Sounds like a job for duct tape.

MrAtom · May 12th, 2017, 07:37 PM

Aren't there guys who drill holes in the airbox of their Honda cages to make them "go faster" ?

Triple Jim · May 12th, 2017, 07:45 PM

Quote:

Originally Posted by MrAtom

Aren't there guys who drill holes in the airbox of their Honda cages to make them "go faster" ?

Yes, you're right yes, I hadn't thought of where in the box it might be. If it's before the filter, it doesn't make any difference at all.

choneofakind · May 13th, 2017, 03:17 AM

It's after the filter. Sure, it's "wrong", but it doesn't seem to be causing any real issues. Don't worry about plugging it, we all have one. Pretty sure it's a drain hole or swirl hole or something like that.

Small enough it doesn't matter anyways.

Lazarus · May 13th, 2017, 05:40 AM

JB weld ?

dcj13 · May 13th, 2017, 10:28 AM

Black silicone sealant: easy to remove If you change your mind.

May 12th, 2017, 01:07 PM	#1
Cra1g ninjette.org member Name: Craig Location: San Luis Obispo, CA Join Date: Jul 2016 Motorcycle(s): 2014 Ninja 300 ABS, 2007 Yamaha FZ6 Posts: 210	Small hole in airbox -- how to seal it? I went to go change my coolant and took off the overflow tank. Noticed a bunch of oil residue on the backside of the tank, as well as around the corner of the airbox. Then I found this small hole: What's the best way to seal it up? P.S. I think my coolant really needed changing. The overflow tank even had a bunch of crap inside..

May 12th, 2017, 06:40 PM	#9
Z1R rider ninjette.org certified postwhore Name: Roger Location: Mitchell, South Dakota Join Date: Apr 2014 Motorcycle(s): 1978 Z1R, 1999 EX250 Posts: A lot. MOTY - 2018, MOTM - Oct '16	Sounds like a job for duct tape. __________________________________________________

May 13th, 2017, 03:17 AM	#12
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	It's after the filter. Sure, it's "wrong", but it doesn't seem to be causing any real issues. Don't worry about plugging it, we all have one. Pretty sure it's a drain hole or swirl hole or something like that. Small enough it doesn't matter anyways.
	2 out of 2 members found this post helpful.

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May 12th, 2017, 01:37 PM	#2
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	Does that actually go through to the inside?

May 12th, 2017, 02:49 PM	#4
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	Some ideas: Put a sheet metal screw in it. Degrease it and put a glob of silicone sealer on it. It won't stick well, so leave enough outside so it won't migrate into the box. Degrease and fill it with hot glue. This is probably the best of these three, since it's likely to stick somewhat.

May 12th, 2017, 03:19 PM	#5
Flying ninjette.org sage Name: - Location: somewhere cold Join Date: Jun 2013 Motorcycle(s): 2010 Ninja 250 Posts: 596 Blog Entries: 1	ABS cement

May 12th, 2017, 04:20 PM	#8
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	I'll be interested in what you find out. I'm thinking you're probably right.

May 12th, 2017, 07:37 PM	#10
MrAtom . Name: . Location: . Join Date: Aug 2014 Motorcycle(s): . Posts: A lot. MOTM - July '15	Aren't there guys who drill holes in the airbox of their Honda cages to make them "go faster" ?

May 13th, 2017, 05:40 AM	#13
Lazarus ninjette.org member Name: RJ Location: PA Join Date: Dec 2015 Motorcycle(s): 2008 Ninja 250 Posts: 210	JB weld ?

May 13th, 2017, 10:28 AM	#14
dcj13 Participant Name: Dave Location: South of Seattle Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much. MOTM - Aug '15	Black silicone sealant: easy to remove If you change your mind.