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Ern's take on the digital F4i upgrade

Old 07-30-2011, 11:15 AM
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Default Ern's take on the digital F4i upgrade

Finally got the guages mounted, after 2 weeks of sweltering in the
garage for 1-2 hours at a time. Here's my version of a mount-up.

Gotcbr (i believe) turned me on to a site for buying the 9x connectors,
so I didn't have to connect each one individually. So that part worked
real well, too.

Here's the final result....

Old 07-30-2011, 01:04 PM
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Excellent work! That looks great.

Glad the connectors worked out well for you.
Old 07-30-2011, 07:10 PM
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Wow that does really look great!!! Good work!
Old 10-26-2011, 11:15 AM
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would you mind explaining how you made the mount for the gauges? I just bought my first bike (97 CBR f3) and am really considering this swap. I bought it at the END of the season, so I have to find some projects or else im going to try and hop on the bike with 3 feet of snow on the ground haha.
Old 10-26-2011, 07:00 PM
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I don't like the open look, through the tripple trees, on a bike with a
fairing, so I wanted to keep the surround that the guages are mounted
into intact. That kept the smooth flow of the guages into the rest of
the fairing.

It destroys the old guages. I took the cowl from the old one and cut the bezel/bump
off to make the face flat. Took a plate of 1/4 aluminum and duplicated the F3 mount
position/spacing. Epoxied the plate to the back of the cowl, then used bondo
w/fiberglass to build a bead at the joining all the way around. then mounted the F4
guages in the position you see, on the plate. The mesh was just something I had
laying around, to dress it up.

OEM-Type Bullet & Spade Electrical Connectors for 1960's through 1970's Japanese Vehicles... Bridgestone, Datsun, Hodaka, Honda, Kawasaki, Landcruiser, Suzuki, Tohatsu, VW, & Yamaha

That's where I got the matching connectors for the F4 guages. I soldered all the pins
to the F3 harness, plugged the empty connector to the guages, and then using a
diagram, plugged the harness pins into the corresponding place in the empty
connector. For the clean factory look, I slipped a piece of heat-shrink around each of
the 2 bundles and then cooked it down after all the pins were inserted properly.


Last edited by MadHattr059; 10-26-2011 at 07:09 PM.
Old 10-30-2011, 04:22 PM
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how dose the digital speedo work? i dont get how you can go from a needle speedo, to a digital one..idk if im dumb or what lol is the speedo accurate? im doing this during down time, i just like to know how instead of why lol
Old 10-31-2011, 05:31 AM
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The F3 uses a signal from the CDI for the guages instead of a mechanical cable off the
front wheel or output shaft to determine speed/rpm. So even though it displays in
analog, it is actually a digital signal being processed.

Old 11-03-2011, 04:54 PM
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well done.
when i did mine about 2 years ago i wanted to do a closed look, but at the time i was a pioneer myself haha.

I made brackets i sold myself, and they turned out well.
Sorry you missed out, they were perfect fit if i remember correctly.
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