Spark Plug Cleaner...
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,048
Likes: 990
a couple of "K" ???
what are your boost pressures?
hd is like any other engine so a few miles is child's play.
service requirements are suggestions, after all the moco does not want a bad rap and besides it ='s $$$$$
one of the best ign diagnostic tools you can have is an Oscope and the pocket variety are cheap.
what are your boost pressures?
hd is like any other engine so a few miles is child's play.
service requirements are suggestions, after all the moco does not want a bad rap and besides it ='s $$$$$
one of the best ign diagnostic tools you can have is an Oscope and the pocket variety are cheap.
Club Member
Joined: Apr 2016
Posts: 11,458
Likes: 8,288
From: Inland NW
With all the changes I constantly make on my bikes, I decided it was time to buy a spark plug cleaner.. What I'm starting to learn is that with my Power Vision tuner, I can't solely rely on Data logs to determine what the problems are as in my last post in the General Topics section.. Spark plugs tell the entire story and with all the changes I make buying new plugs every time can get a little expensive.. It's not that the plugs are expensive @$6.00 a piece but when you need fresh clean plugs to identify any problems it can add up after making changes several times.. So I ordered a cheap unit off of Amazon.. I looked at some videos and it appears to work ok, so for $20, I said just do it.. Look at it this way I have 6 sets on OEM plugs on the shelf that have less than 500 miles on them.. IMHO This cheap little unit already paid for itself..
https://www.amazon.com/dp/B0D7GG63WR...fed_asin_title
https://www.amazon.com/dp/B0D7GG63WR...fed_asin_title
I wonder if cleaning iridium plugs is a no-go? I have never considered it, but I can't imagine a reason not to. I have a few sets (brands) that I have pulled with a few K on them that I experimented with during the engine build, etc. 4 goddamn overpriced iridiums per change certainly adds up!
I have an Amazon gift card from Father's Day burning a hole in my account...I might have to try this just because. @98hotrodfatboy thanks for finding this, man!
Last edited by NorthWestern; Jun 23, 2025 at 07:54 PM.
Tourer
Joined: Apr 2015
Posts: 366
Likes: 143
From: Peoria, Az
My dad had one 35 years ago that we used all the time. We did have to check them over real good to make sure there was no sand wedged down deep inside of them. Saved lots of plugs with that dang thing on the 64 ironhead and 70 shovelhead.
HDF Community Team
Joined: Nov 2012
Posts: 6,186
Likes: 2,412
From: USA
Mmmhmm. I had one way back in the era of crude carburetors and such. When we frequently carried a spare plugs and a set of points. And like you, I had to be careful about the blasting media getting stuck deep in the plugs. With the modern plugs and fuel injection, I just haven't used it in many years. Not even sure I even still have it. For those few old machines I still have, I'd rather just replace their plugs every few years.
Seasoned HDF Member
Joined: Feb 2016
Posts: 7,971
Likes: 6,864
From: NC
Plugs for the past 20-30 years, and longer, are better then the previous plugs from the 1960s. Especially with most motorcycles having electronic ignition, if not EFI. Except for antiques, who is running points and condenser today?
Gone are the days of needing a tune-up every 1000 miles.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
Likes: 7,968
From: poway
A couple thousand miles? Are you 90? Do you change your oil at the same intervals?
Plugs for the past 20-30 years, and longer, are better then the previous plugs from the 1960s. Especially with most motorcycles having electronic ignition, if not EFI. Except for antiques, who is running points and condenser today?
Gone are the days of needing a tune-up every 1000 miles.
Plugs for the past 20-30 years, and longer, are better then the previous plugs from the 1960s. Especially with most motorcycles having electronic ignition, if not EFI. Except for antiques, who is running points and condenser today?
Gone are the days of needing a tune-up every 1000 miles.
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,326
Likes: 56,888
From: Michigan 15 Minutes East Of Hell
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Club Member
Joined: Apr 2016
Posts: 11,458
Likes: 8,288
From: Inland NW
I just wanted a cool way to clean up these few sets I had needlessly rotated through, and did not want to use the sand blaster at work on the iridium center electrode, it would likely blast it clean off.
Thread Starter
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,025
Likes: 7,549
From: Poolville
Thanks Max appreciate the backup... Obviously comprehension is a thing of the past nowadays...