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Spark plug wrench

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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Well, I need to go get a spark plug wrench. I tried a couple of sizes from my neighbor, (car ones) but none fit. What size should I get?


Reason I need it is that I finally got it all back together (sorta) and it won't fire up, so I was going to start with spark, move to fuel (having petcock problems after rebuild) and go from there.
 
most likely you'll need an 18 mm, if you cant find one for sparkplugs, take a regular 18mm deep well and stick a piece of fuel line in it to cushion the ceramic
 
If you are using standard NGK plugs, a standard 13/16" inch plug wrench shuld fit. That's about the same as a 20 or 21mm metric.
 
nweaver said:
hmm...so now I hear 18, 20 or 21..any other offers?
Click to expand...
WHAT IS THE NUMBER OF YOUR SPARK PLUG AND DON'T YOU HAVE A REPAIR MANUAL?? :) MY 1100E HAS 18MM
 
As I recall he has a 16 valve GS750...that would require the same plugs as you and I, Scotty.

Hap
 
Why guess and check when you can very easily take the spark plug with you to a store? Unless you're ordering online...

Just a thought.
 
booboo, 'tis kinda hard to take it to the store when it's still attached to the bike, and the bike won't start, dontcha think?

:D
 
I ended up with the 18mm and whatever the SAE is. My new plugs were one type, and the old were another...

Terry
 
It just dawned on me .Why didnt you just take one of your old spark plugs in to get the proper sizes wrench. OOPS i broke the rule :( :( :(
 
You've striipped and rebuilt the engine, and you can't figure how to get the plugs out??!???
 
My 1981 GS-750L is also an 18 mm but I have had better luck with using a three way motorcycle plug wrench that I picked up a few years ago at a honda dealer. Its basically the old socket (like the motorcycle tool kit sockets for many bikes) with a bar that goes through the end to allow you to turn the socket. It has two different size end wrenches and the 18 is actually inside the 21 mm.

What I like about it is that it fitts in there I have trouble getting a socket and other than breaking the plug loose or the final 1/4 turn tightening I can easily turn it with my fingers.

Mike
 
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