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Author Topic: Original Koni 76P-1413  (Read 864 times)

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Offline BenelliSEI

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Original Koni 76P-1413
« on: July 31, 2025, 12:55:07 PM »
I bought these ages ago and they disappeared in my shop. I had them packaged up nicely, standing in the corner of a shelf and stumbled on them today. Clearly stamped 76P-1413.

Took one apart and adjusted it right down (fully compressed, with spring removed, and rotated the shaft fully counter clockwise). Spotless shaft, no leaks and works perfectly! 14.3 inches (fully extended, eye to eye), they seem a match for the new IKON 7610-1413.

The black painted springs have no chips or corrosion and the shock bodies are unmarked. Seem to have very little use. Maybe none?
« Last Edit: July 31, 2025, 01:04:12 PM by BenelliSEI »
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Offline BenelliSEI

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Re: Original Koni 76P-1413
« Reply #1 on: July 31, 2025, 12:56:39 PM »
Pondered how to dismantle them for a while. None of my spring compressors would grab the bottom of the spring without marring the shock body. Set up a ratchet strap and had it apart in a few minutes! Unloaded the strap one click at a time…..
« Last Edit: July 31, 2025, 01:05:33 PM by BenelliSEI »
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Offline BenelliSEI

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Re: Original Koni 76P-1413
« Reply #2 on: July 31, 2025, 01:01:51 PM »
Anyone have a set of these on their cb750? Thinking of trying them on my 1971 cb750K1. How many turns did you run up the rebound setting?
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Online newday777

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Re: Original Koni 76P-1413
« Reply #3 on: July 31, 2025, 01:08:32 PM »
Quote from: BenelliSEI on July 31, 2025, 01:01:51 PM
Anyone have a set of these on their cb750? Thinking of trying them on my 1971 cb750K1. How many turns did you run up the rebound setting?
They are too long for the SOHC Fours
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 1 K2, 4 K6, 1 K8, 1 F1, 1 F3
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline BenelliSEI

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Re: Original Koni 76P-1413
« Reply #4 on: July 31, 2025, 01:18:32 PM »
Quote from: newday777 on July 31, 2025, 01:08:32 PM
Quote from: BenelliSEI on July 31, 2025, 01:01:51 PM
Anyone have a set of these on their cb750? Thinking of trying them on my 1971 cb750K1. How many turns did you run up the rebound setting?
They are too long for the SOHC Fours

Stu….. they only appear to be +1/2” vs. the ones on my K1?  Looks like they were originally for the later cb750F or twin shock CBX1000.
« Last Edit: July 31, 2025, 01:31:34 PM by BenelliSEI »
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Online newday777

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Re: Original Koni 76P-1413
« Reply #5 on: July 31, 2025, 02:57:18 PM »
My K5, K6 K8 and F3(78) are all 13.25" center to center of the bolts
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 1 K2, 4 K6, 1 K8, 1 F1, 1 F3
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline BenelliSEI

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Re: Original Koni 76P-1413
« Reply #6 on: August 01, 2025, 06:17:10 AM »
Quote from: newday777 on July 31, 2025, 02:57:18 PM
My K5, K6 K8 and F3(78) are all 13.25" center to center of the bolts

Stu….. I suspect mine are too. Thinking about it last night, I might try a slightly lower spring on the Koni (I have a few sets) and see if I can get them down an inch?

They are in excellent shape and look so good!
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Offline bryanj

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Re: Original Koni 76P-1413
« Reply #7 on: August 01, 2025, 12:56:04 PM »
Shorter spring may well leave the retaining collets loose, only safe way would be to shorten the damper rod
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline BenelliSEI

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Re: Original Koni 76P-1413
« Reply #8 on: August 01, 2025, 05:32:14 PM »
Quote from: bryanj on August 01, 2025, 12:56:04 PM
Shorter spring may well leave the retaining collets loose, only safe way would be to shorten the damper rod

Agreed….. If I can’t get a softer set and make them a snug fit with the preload adjustment, it’s not on.
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