Maintenance tachometer
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Road Warrior
Joined: Oct 2006
Posts: 1,916
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From: San Antonio, Texas
Maintenance tachometer
Anyone own a maintenance tachometer? They usually have an inductive type clamp for a plug wire. Hard time finding one that does 2 cylinders. I see some that do 4, but not sure if it would be accurate if halving or doubling the reading for two. Don't TC88's fire every up-stroke of the piston - thinking this would throw the tach off. Don't want or need a tach on my Wide Glide and she's carb'd, so need to set the idle other than "by ear". Thanks in advance.
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Road Warrior
Joined: Oct 2006
Posts: 1,916
Likes: 0
From: San Antonio, Texas
RE: Maintenance tachometer
ORIGINAL: 96 Wide Glide
Google "Tiny Tach"
Thats what I'm looking to get. Already have a multi-meter.
Cheers... Ben.
Google "Tiny Tach"
Thats what I'm looking to get. Already have a multi-meter.
Cheers... Ben.
Thanks in advance..
Road Master
Joined: May 2007
Posts: 794
Likes: 3
From:
RE: Maintenance tachometer
Hopeing someone else will chime in here to confirm this, but I'm pretty sure all Harleys are regular 4 strokes. Each cylinder fires once for every two revolutions of the crankshaft.
Ultimate HDF Member
Joined: Oct 2007
Posts: 7,562
Likes: 11
From: Palm Harbor fl.
RE: Maintenance tachometer
yup 4 stroke engine.... batteries last 5 years... maybe replacable...
I would say get the standard one(1st one listed or second if you want to reset the clock)
I kinda need one of these as well.....let me know if you get one and how it works out.....
I would say get the standard one(1st one listed or second if you want to reset the clock)
I kinda need one of these as well.....let me know if you get one and how it works out.....
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Road Warrior
Joined: Oct 2006
Posts: 1,916
Likes: 0
From: San Antonio, Texas
RE: Maintenance tachometer
Hmmm - I could have sworn I saw somewhere that Twin Cams have a different firing system than Evos and Shovels - it fires twice as often, every upstroke (once every 360 degrees of crank rotation). To me, that makes a difference in the tach I buy and I guess that's what's throwing me off.
[EDIT] - OK, I guess TC88's are the only big twins that have a single fire ignition, all older motors had dual fire. OK, so now I get why I was confused - it's a four stroke...thanks for the help guys, appreciate it.
[EDIT] - OK, I guess TC88's are the only big twins that have a single fire ignition, all older motors had dual fire. OK, so now I get why I was confused - it's a four stroke...thanks for the help guys, appreciate it.
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Tourer
Joined: Sep 2007
Posts: 329
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From: Central New Jersey
RE: Maintenance tachometer
SargeK
I believe the newer TC's are single fire ignition. Firing only the cylinder needed. The evo's and earlier were dual fire ignition, sending spark to each cylinder each time.
I believe the newer TC's are single fire ignition. Firing only the cylinder needed. The evo's and earlier were dual fire ignition, sending spark to each cylinder each time.
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Outstanding HDF Member
Joined: Dec 2006
Posts: 2,027
Likes: 4
From: Eastern NE
RE: Maintenance tachometer
2C is the correct model. I have one about 1-1/2 yrs old. If you wanna try one, I'll sell this one. Don't need it anymore. Can take a pik if interested..
[IMG]local://upfiles/22103/91D7FBF37DC04D36A183369EFF648198.jpg[/IMG]
[IMG]local://upfiles/22103/91D7FBF37DC04D36A183369EFF648198.jpg[/IMG]
Thread Starter
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Road Warrior
Joined: Oct 2006
Posts: 1,916
Likes: 0
From: San Antonio, Texas
RE: Maintenance tachometer
Thanks Mr E and 07 StreetBob, appreciate the clarifications. I knew I read that something was dual-fire, but was thinking it was the TC88's.
07 StreetBob - PM me with details, thanks!
07 StreetBob - PM me with details, thanks!
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