Looking for a compression tester that would fit the bike.

[MakDad]

Looking for a compression tester to test my newly bought bike.
I have a 1982 GS750e and was wondering if the one by harbor freight tools will work since the one that AUTOZONE has to loan doesn't fit the spark plug holes. Will this work or does anyone have any other ideas????

THANX.

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92697

[tkent02]

Yes that one is fine, I have one, it fits.

[MakDad]

Awesome. That's good enough for me, TKent.

Anything else good that Harbor got that's useful for the bike?

[tkent02]

Trickle chargers, horns, lots of tools, some are even of adequate quality for occasional use.

I have a few of their spray guns that work OK, I would want better if I painted stuff full time but for one or two bikes a year they seem fine.

I get a lot of things there that are not going to be used very often. Welder, etc.

Be careful, some of the junk they sell is absolutely worthless.

Take some time, look around.

I have that comp tester because someone left it here, I have compared the readings to my Craftsman, can't tell any difference.

[MakDad]

I have that comp tester because someone left it here, I have compared the readings to my Craftsman, can't tell any difference.

Thanx. Definitely will get it. at $10 how can u go wrong, right?

[MakDad]

Disappointed

Yes that one is fine, I have one, it fits.

Hey TKent02,

got my compression tester the other day from Harbor Freight tools and it DOESN'T fit ! What gives? Maybe I have different diameter spark plugs than you do?

mine came with a 14mm and 12mm adaptors but they're both too big to screw into the block. Can anyone tell me where I can get just the adapter to fit onto the compression tester and then into the block?

Thanks!!

[sschering]

correct me if I'm wrong but 2v motors should be 14mm (13/16 socket) and the 4v's are 12mm (5/8 socket) right?

[hikermikem]

The compression tester I bought from Advanced Auto has several different sized adapters for the various sized plug holes...

Bring the HF one back & get a better one.

[rustybronco]

mine came with a 14mm and 12mm adaptors but they're both too big to screw into the block.

Info per your harbor freight link... "Fits 14mm and 18mm spark plug holes"

it would seem what you might need is the 12mm adaptor.
what part number spark plug fits the bike?

I have a compression tester not unlike the one in your link. it came with the 12,14 and 18mm adaptors.

[rideOn]

i picked one up at sears that works with an adaptor. hey, just trying to do my part to keep them open. if they go bust, i'll have nowhere to get my wrenches and sd's replaced.

[sschering]

This one has the 12mm adapter..

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95187

HF 15% off coupon.. good tomorrow through the 9th

http://www.harborfreightusa.com/usa/common/displayCoupon.do?week=4509&campaign=Retailb&page=4509_retailb.html&r=5015_85611&cust=70000000000&keycode=0000

HF 20% off coupon

http://www.ifcba.com/images/htf/65458/coupon21.html

They have also been putting some good 20% off coupons in Magazines.. My new copy of sport rider has a 20% off that is good until march.

[MakDad]

My mistake, DUUUHH. The tester DID come with 14 and 18 mm adaptors, but I guess I need the one that's 12 mm.

The plugs I got are D8EA. As far as returning the tester, I think I'll pay more for shipping it back than I spent on it. I'll try to find just the adapter online to see if anyone sells it individually.

Thanks for all the info.

[rustybronco]

I can mail you the adapter, just mail it back when you're done.

[1_v8_merc]

Hey guys I have an 82 GS650G, do i have the 12mm also?

If so, im getting that harbor freight deal.
(i'd be happy to loan it out, if someone needed it)

I have not done a compression test on her yet......never realized they were important until i read about it.