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Author Topic: Showa Shocks Rebuildable?  (Read 899 times)

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Offline major domo

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Showa Shocks Rebuildable?
« on: March 08, 2018, 09:28:54 AM »
Hello everyone,

Are the Showa rear shocks as used on the '69 and '70 750 KO's rebuildable? Is it worth the time and energy, or just get a good reproduction set? Thanks in advance!
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Offline seanbarney41

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Re: Showa Shocks Rebuildable?
« Reply #1 on: March 08, 2018, 11:47:12 AM »
You can drill, drain, refill, and tap for a plug, but that is all.  I'd just buy some hagons.
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If it works good, it looks good...

Offline Yamahawk

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Re: Showa Shocks Rebuildable?
« Reply #2 on: March 08, 2018, 11:55:12 AM »
I would say no, but check out Jamie Daugherty at DMR racing in Ft. Wayne, Indiana... he has been known to rebuild some pretty good stuff, and basically all he uses is the housing, replacing all the guts and damping assemblies. It is nice to start with something adjustable though...
Charlie
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1971 CB750K1 (newest bike), 1996 Royal Enfield 500 Bullet (therapy bike), 1981 Yamaha XV920RH, 2006 Kawasaki Concours (retirement bike), 1975 Yamaha RD350 (race bike), 1989 Honda VTR250 Interceptor (race bike), 1986 Kawasaki EX250 Ninja (race bike in progress), 1985 Honda Elite CH250, 1973 Yamaha GT1 80cc, 1974 Yamaha DT360 project bike.

The Only Thing Necessary for Evil to Triumph, is for Good Men to do Nothing.
Edmund Burke

All Things work together for good, for those who love God and are the Called according to His purpose.
Romans 8:28

Though He slay me, Yet will I trust Him...
Job 13:15
will you trust Him...?

Offline PeWe

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Re: Showa Shocks Rebuildable?
« Reply #3 on: March 08, 2018, 12:34:18 PM »
IKON look similar and work better. My avatar K6 has them.
But I have a set of stock replicas (later 5 setting version) waiting to be installed on my K2 build
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Yamahawk

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Re: Showa Shocks Rebuildable?
« Reply #4 on: March 08, 2018, 12:44:52 PM »
Quote from: PeWe on March 08, 2018, 12:34:18 PM
IKON look similar and work better. My avatar K6 has them.
But I have a set of stock replicas (later 5 setting version) waiting to be installed on my K2 build
Ikon is a good shock, used to be... KONI!
Charlie
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1971 CB750K1 (newest bike), 1996 Royal Enfield 500 Bullet (therapy bike), 1981 Yamaha XV920RH, 2006 Kawasaki Concours (retirement bike), 1975 Yamaha RD350 (race bike), 1989 Honda VTR250 Interceptor (race bike), 1986 Kawasaki EX250 Ninja (race bike in progress), 1985 Honda Elite CH250, 1973 Yamaha GT1 80cc, 1974 Yamaha DT360 project bike.

The Only Thing Necessary for Evil to Triumph, is for Good Men to do Nothing.
Edmund Burke

All Things work together for good, for those who love God and are the Called according to His purpose.
Romans 8:28

Though He slay me, Yet will I trust Him...
Job 13:15
will you trust Him...?

Offline glenncal1

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Re: Showa Shocks Rebuildable?
« Reply #5 on: March 10, 2018, 06:37:19 AM »
I put some Progressives (got a very good deal on a set and have good success with them in the past) to replace the 45 year old pogo sticks that were on my cb350. It was the best change I have made to the bike. I really think you are doing yourself a dis-service not to use a modern shock. You can keep the old stockers for originality. Just IMHO
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