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Author Topic: The z50 Zombie, Back from the Dead - a Honda Mini Trail resurrection  (Read 653 times)

Offline advCo

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The Z50A definitely goes to K9.  Your manual may predate the end of production.  Honda always designated that number by year.  What does the VIN tag say?

Not sure on the VIN tag, but I just checked CMSNL and it appears it does go to K9. I believe k5-k9 are all identical with the exception of some different graphics, probably why most parts come up as k5 or k6 designation.

"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline advCo

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Found an eBay deal with the clutch cover, stator cover and all the missing components for the auto clutch for a great deal. The stator cover has a small hole in it but I'm going to try and weld it up with some low temp aluminum rods. Pretty happy with this purchase as I got the whole lot for the price of what a used stator cover usually goes for.



Tank is on the way. Only one 78 model tank was available on ebay, and its not in the best shape but for the price it was worth the gamble. There's a small hole that will need welded up but the rest looks solid. Comes with the cap and petcock as well, which pretty much covers what I paid even if I can't save the tank.



Next step is to pull apart the clutch basket and see whats usable, then make a list of parts to order to rebuild it. Hopefully I can save the outer basket and just replace the throwout bearing and plates. We shall see.
« Last Edit: Nov 09, 2018, 10:44:50 by advCo »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline TranceMachineVienna

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very interesting!
keep it coming!

Offline WhyNot

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  • ~~~If it ain't raining, I'm riding~~{iii}?~~prost~
I'm in.

Wish I could find one of these around here really cheap.
2006 Harley Davidson Heritage Softail
1975 Honda CB750K5 needs carb work
1974 Honda CB350F2 needs tins painted (being lazy)
1972 Honda CB175K2 roller no engine
1972 Honda CB/CL350 Engines need roller
1972 Honda SL350K2 Frame for above engine
1972 Honda CB100K2 needs kicker shaft
1990 Mitsubishi MM needs engine rebuild
1984 Dodge D50 Beater DD since 1997

Offline clem

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Just started going through my CT70 engine last week. Looks like you have me beat for best pile of the year! Haha

Sent from my SAMSUNG-SM-G930A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline JustinLonghorn

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I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline 1fasgsxr

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I want a Z50 or a CT70 real bad. Good thing my garage is full of stuff needing finished.
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline advCo

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After work last night I made a couple of v-blocks out of some scrap 3/4" birch plywood so I could check the runout on the crankshaft. I set them up on a piece of 1/4" plate so I could use the magnetic attachment on my dial gauge to prevent any movement.

Everything measured within spec so we have a good usable crankshaft to build out from. The clutch side bearing is toast as it was full of dirt and grit from broken case covers, so that'll need to get replaced, but that's not a big deal at all and about a $10 part.

Crankshaft Runout:
(Service Limit: 0.002")
Stator side: 0.000"
Clutch side: 0.0014"

Connecting Rod Side Play:
(Service Limit: 0.0315")
Measured: 0.015"

Connecting Rod Radial Clearance:
(Service Limit: 0.002")
Measured: 0.000"





Now that I've confirmed the crankshaft is in spec, I'm going to go ahead and order gaskets, oil seals, a couple bearings and a bunch of random parts like crush washers, nuts, piston rings, and all that good stuff to build up the engine.

"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline Maritime

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Nice
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline Sonreir

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I'm in.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys