October 31st, 2014, 08:47 AM | #1 |
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Spark plug adapter for leakdown tester??
Hey guys and gals,
I have this harbor freight leak down tester: http://www.harborfreight.com/cylinde...ter-94190.html I went to play with it on the ninja (pregen), and discovered that the kit doesn't have a plug adapter small enough to thread into the plug hole. It only goes down to 12mm. Is 10 mm the right size for the ninja? Will any of the 10mm plug adapters thread right into this tester or do I need one specific to the HFT model? I'm probably overthinking all this but chewing up my head is a headache I need to avoid! THANKS!! TLDR; what do I need to use the HFT tester in the link above on the Ninja?
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October 31st, 2014, 09:07 AM | #2 |
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Good question, and I have no idea, best bet is to take a plug with you, and match it up.
wish I had more for you. I gotta ask, why are you doing a leakdown test?
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October 31st, 2014, 09:11 AM | #3 |
wat
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what i would suggest is not ever using any gauges from harbor freight. i have tried like... 4. none of them have ever worked. get a craftsman gauge.
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October 31st, 2014, 09:15 AM | #4 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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Well yeah, that too, also stay away from their torque wrench, or any other metering devices
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October 31st, 2014, 10:14 AM | #5 | |
Daily Ninjette rider
Name: Hernan
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Quote:
Rub some motor oil over the threads of the HF adapters and place it sideways over a piece of paper. If you count 10 valleys within 1 cm (10 mm), you have a 1.0 mm pitch. If you count 8 valleys within 1 cm (10 mm), you have a 1.25 mm pitch. Both are fine threads. If you count around 6 valleys within 1 cm (10 mm), you have a 1.5 mm pitch, which is called coarse thread. http://en.wikipedia.org/wiki/ISO_metric_screw_thread http://faq.ninja250.org/wiki/Helicoi...park_plug_hole
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October 31st, 2014, 10:31 AM | #6 |
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One thing I found and you should avoid. The adapter is screwed on to the hose. The adapter has a hex on the outside. When you screw the adapter into the head it will tighten up to provide a seal. When you try to unscrew the hose the adapter could stay in the head. And if the spark plug hole is not perfectly centered one of the flat sides of the hex will lock it in place. The only way to remove the adapter is to pull the head or do some tricky work down the plug tube. Ask me how I know this could happen?
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October 31st, 2014, 11:42 AM | #7 | |
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Name: Jesse
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Quote:
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October 31st, 2014, 11:49 AM | #8 | |
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Name: Jesse
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Quote:
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October 31st, 2014, 01:59 PM | #9 |
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No the size of the tube is small. So a socket will fit around the hex on the adapter may be to thick to fit down the tube. And if the spark plug hole is not centered then the hex actually touches the side of the spark plug tube. I ended up grinding off the hex then used red Lock tight on the adapter to the hose.
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November 1st, 2014, 09:59 AM | #10 | |
ninjette.org guru
Name: Jesse
Location: Maryville, TN
Join Date: Nov 2012 Motorcycle(s): Ugly 89 frankenstien special ex250, and the "Zooks" : 1982 GS450 and 1979 GS1000 Posts: 327
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Quote:
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November 1st, 2014, 01:31 PM | #11 |
ninjette.org certified postwhore
Name: Eric
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That's what I did. And lube the threads
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