entropy
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posted January 19, 2003 03:49 AM
compression test: who has done one on a 12?
with the engine IN the bike, who has done a compression test??? Goddamn monocoque frame!!!!  maybe the righjt tools would help??
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redelk
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posted January 19, 2003 10:37 AM
I have done it three times. I had to make my own "adapter" using a old sparkplug. One my "end piece" was a permanent part of my flexible hose, all was well in "Elk Land". It's still a bitch!
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entropy
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posted January 19, 2003 12:17 PM
red,
could you explain just a bit more fully? I am interested in doing the same.
thanks
BTW,
I finally got to Sabin again yesterday. Great Guy!!
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addisonzx12
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posted January 19, 2003 03:34 PM
I have done it on my 1290. No real trick to it, same as changing the spark plugs. Biggest pain was removing that plastic heat sheild that sits above the plugs. My compression readings were between 220 & 235 PSI.
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entropy
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posted January 19, 2003 03:51 PM
addison,
what tool/guage/fitting did you use and do you know where I can get one.
235 is getting up there, eh?
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
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posted January 19, 2003 04:18 PM
quote:
Biggest pain was removing that plastic heat sheild that sits above the plugs
so much so that i left the damn thing off!!!
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redelk
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posted January 19, 2003 05:17 PM
 Edited By: redelk on 19 Jan 2003 17:19
entropy, the guage I bought did not have a end piece that had a 10mm thread diameter (the "C" in CR9EK-P) and anything close to a 19mm thread reach (the "E" in CR9EK-P). FYI, the other numbers on the plug stand for
C: 10 mm Thread Diameter
R: Resistor Type
9: Heat Range
E: 19 mm (3/4") Thread Reach
K: 2-Ground Electrodes
P: Premium Platinum
So, I gutted a sparkplug to where I just had the hollow lower metal part and cut the 2 side ground electrodes off. I used both JB Weld (let it cure) and then a compound epoxy glue to permenently attach it to the adapter that goes on one end of the approx. 18" flexible hose. The other end has a quick disconnect for the guage to go in.
I got my gauge at Granger. It's a cheap ole "Kal Equip" and just about every place from Sears to AutoZone carry them. I think the go for $40-50. I later found a kit that had a 10mm thread with a 18mm reach, but it was $120!
I removed the KLEEN system (all that "smog stuff" above the valve cover) a long time ago. I also cut the plastic piece in half so I can remove it a little easier. Having done all that, it's not half as hard to work around in that area as it once was.
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There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.
-Ernest Hemingway
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entropy
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posted January 19, 2003 05:35 PM
Red,
so you just poke the 10x18mm /flexible hose down the sparkplug hole and hand tighten it by turning the hose? That seats it firmly enough?
Thanks taking the time to respond, I am pretty slow... 
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redelk
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posted January 19, 2003 05:58 PM
No, I had to glue the sparkplug piece to the part that would normally fit a 14mm plug opening. The only trick to is making sure that I didn't restrict the opening of the 14mm piece with too much glue.
Here's a pic of a $25 Sears guage. The part that has the red circle around it is where I glued the gutted sparkplug to. I just put glue around the threads of the adapter piece and slide the gutted plug over it and turned it a few times to spread the glue around.
After I made sure no glue had oozed down around the adapter's opening, I let the JB Weld cure. Then I used a two part epoxy that comes in a plastic double syringe and put it around the gap between the adapter and the "nut part" of the gutted sparkplug. Just to make sure that it was COMPLETELY sealed.
Now, the "new" adapter piece would work on the 12R. I just put a little plumber's tape (that white stuff) on the threads of the hose end and attached the "new" adapter to it. Has worked flawlessly for over two years.
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There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.
-Ernest Hemingway
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addisonzx12
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posted January 19, 2003 06:41 PM
I use a sears/craftman gauge also, Redelk statments are pretty thorough. I just screwed the 10mm adapter onto the supplied 14mm adapter & then screwed the adapter hand tight using the flexible hose. The O ring at the base of the adapter prevents any leakage. Yep, 235 PSI is about the max for 93 octane pump gas, had to retard the timing to only 2.5 advance, down from 5 to prevent lowend detonation when it was really hot. By the way that SOB plastic shield goes back on a LOT easier than it comes off.
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addisonzx12
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posted January 19, 2003 06:49 PM
Edited By: addisonzx12 on 19 Jan 2003 18:51
Oh, the 10mm adapter. I got it from JC Whitney years ago, it's the same size that is used on the water cooled 93 & up Suzook gsxr-1100's. I am sure you can get it from snap-on & elsewhere it's pretty common nowadays.
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entropy
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posted January 20, 2003 01:21 AM
Thx alot, Red & Addison. I will be trying this one o' these days!!!!
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