Essential tools

"DipodomysDeserti" (dipodomysdeserti) 01/04/2017 at 19:03 • Filed to: None

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This tool is a must have if you plan on working on old Japanese motorcycles. It’s a Vessel Impacta JIS #2 . The Japanese used to use their own screws (not sure if they still do) called JIS (Japanese Industrial Standard) screws. They look like phillips heads but aren’t. If you use a phillips heads driver you will probably strip out every head.

HammerheadFistpunch > DipodomysDeserti 01/04/2017 at 19:08

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this is a problem for my truck because the front oil pump plate (a common leak) uses these. The typical work around is to buy brand new #2 philips chucks and pound them into the head, then use an impact gun. Seems to work.

BorkBorkBjork > DipodomysDeserti 01/04/2017 at 19:10

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Essential differences, in case anyone is interested.

Kat Callahan > DipodomysDeserti 01/04/2017 at 19:19

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...considering that looks exactly like all of my screwdrivers I bought here in Japan, I assume so?

Forge Crown Victor! > HammerheadFistpunch 01/04/2017 at 19:19

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I mean, I thought that was the way to do it.

ADabOfOppo; Gone Plaid (Instructables Can Be Confusable) > DipodomysDeserti 01/04/2017 at 19:23

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Care to take a comparison shot so we can see the difference?

bob and john > DipodomysDeserti 01/04/2017 at 19:45

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Bought a set on clearnace from princess auto. Best 80$ ever

JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t > DipodomysDeserti 01/04/2017 at 20:02

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I own an older German motorcycle with Japanese carbs, first time I rebuilt the carbs I stripped all the JIS screws on them, so I replaced them with metric allen screws so they match the rest of the bike ;)

DipodomysDeserti > JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t 01/04/2017 at 20:40

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Yeah,I stripped out every screw on one side of the engine before wising up. I also replaced them all with allen screws.

AestheticsInMotion > DipodomysDeserti 01/04/2017 at 20:45

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Only drivers I’ve ever spent my own money on. These things really are a godsend

JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t > DipodomysDeserti 01/04/2017 at 20:52

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mine is a BMW, so literally every other fastener on it is a metric Allen. By stripping the JIS screws and replacing them with allens I can now work on the carbs with the factory toolkit ;)

DipodomysDeserti > ADabOfOppo; Gone Plaid (Instructables Can Be Confusable) 01/04/2017 at 21:22

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ADabOfOppo; Gone Plaid (Instructables Can Be Confusable) > DipodomysDeserti 01/04/2017 at 21:25

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Thanks.

Since the JIS has a totally flat surface does it grip better?

Censored > DipodomysDeserti 01/04/2017 at 21:30

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You will know it is a jis screw if there is a dot between one of the crosses of the Phillips.

https://goo.gl/images/KFbXOv

Censored > Censored 01/04/2017 at 21:32

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Sorry that didn’t copy right.

DipodomysDeserti > Censored 01/04/2017 at 22:07

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Nice, thanks for that.

DipodomysDeserti > ADabOfOppo; Gone Plaid (Instructables Can Be Confusable) 01/04/2017 at 22:12

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For being 40+ year old engine case screws, they definitely seems to grip a lot better.