1982 Honda Z50JZ

Mini Dirt Bikes & Pit Bikes Forum

Help Support Mini Dirt Bikes & Pit Bikes Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Z50Jay

Active Member
Joined
Jun 6, 2011
Messages
27
Reaction score
1
Thought I would share my build from another forum, forgive me if it doesn't make sense these are from posts over a long period of time.

This is my '82 JZ when I first got it.

65747_467434765307_622475307_6202849_4303260_n.jpg


And then I threw some money at it and got this

photo-2.jpg


I rode it every day to uni and work and hasn't let me down


Then I got some packages
photo-3.jpg

photo1.jpg


And some more

photo2-2.jpg


Got a mate to extend my swingarm for me.

He made a jig to keep it all in place. You can see the donor swingarm in the background. We did it in 2 pieces to try and keep the same width at the rear.

1.jpg


2.jpg


He was a bit worried about not getting enough weld around the joins, so did this.

3.jpg


4.jpg


And the finished product, with re-located chain guard mount.

5.jpg


Then there was some more progress. Exams were coming up so therefore it was the perfect time to procrastinate, what better way to procrastinate then build a Z50. I ran out of time and money to paint the frame but painted a few other bits and pieces. I put my chrome bits in oxalic acid and I'm very impressed. Started out with the swingarm, wiring loom and other bits and pieces.

c66dc8fc.jpg


Then fork uppers, bars, new switches, levers and throttle. New tapered steering stem bearings went in too.

d7af57c4.jpg


Tried on some +1 fork legs and stiffer springs from my CRF50

9023bcc3.jpg


But there was an interference issue with the speedo drive and fork leg

df69a40c.jpg


Working on the bike in the lounge room is OK (she doesn't know about the engine parts in the dishwasher though :D)

10a2ff89.jpg


Needed the bike back on the road asap as its my primary form of transport, so put the 3 speed auto 50cc CRF50 engine in it for now.

2ecaf0fa.jpg


Because the CRF loom is so simple I put everything in the battery box and kept the 6V loom and associated bits in there. No lights at this point, but that's okay ill only be riding during the day time.

e53b7794.jpg


I can tell you that riding it with 50cc again is a challenge, you forget how slow they really are. I'm thinking about just building up this 12V engine and putting the 6V into the CRF. I've got a fair bit of work coming up over this holidays so will just depend on how much I can save.. This exhaust is an amazing piece of artwork. The sound it gives even for a 50cc engine is nice too.

Okay a bit of an update.

I got a Kitaco 124SE kit (with Takegawa crank) of another forum member, along with a few other goodies too.

A billet housing to withstand the rpm of the infamous 54 X 54 combo.

EEF69C80-8222-4231-89FB-7ADF9C28338A-6462-0000077CA4E94ABE.jpg


A 5 speed gearbox to keep the bike singing.

0681EB9F-B44A-4998-9740-B96082D5EE27-6462-0000077CBB516F3B.jpg


Clutch mounted.

E2A4373F-7F3F-45A5-874D-6410C5F329FB-6462-0000077CCBB61A11.jpg


Takegawa outer rotor, to plug straight into my new CF Posh harness. Check out the size difference.

50A17F3B-A249-41FC-8EA8-6F25DC1C0CDB-6462-0000077CD8F90D75.jpg


It's a tight squeeze with the stock fork legs

B2BA7C17-004A-416E-806D-2F4DE4A1A87A-6462-0000077CF83295AB.jpg


And ready to go

B510875A-2C0B-4934-A94A-A9D7712026C2-6462-0000077D0822AD67.jpg
 
Hello again Jay :)

Checked out your build earlier at the Monkey Mechanic site, such a nice build.
But yeah seen this in te flesh today and man it is a sick ride, small world after all!

Carlton
 
Top job mate your bike has come up a treat. Would be one of the best zeds of have seen. My wife loves bikes but will not let me bring any of them inside let alone work on them in the loungeroom your a lucky fellow :LolLolLolLol:.
 
Well done mate, you could nearly build a 2ND z with the leftovers, quality build
 
Well done mate, you could nearly build a 2ND z with the leftovers, quality build

That was the plan but unfortunately I just sold a bunch of parts. Trying to toss up now between a TB V2 head or a Daytona Anima..
 
I am seriously loving the TB v2, but that anima does look to be a sick engine. The real test is there reliability though because the power does look look to be up there!
 
I seen a 190cc Daytona Anima going at a local track at the weekend it was a rocket. It was in a Braaap frame a very quick bike it was. The engine sounded very strong and crisp like you said Carlton the test will be how long they last. But what i seen it was very impressive.
 
Time for another update.

I finally received my parts so it was time to reassemble. I wasn't going to get a special clutch for a while, but Z50Jack went full retard and ordered black instead of brown. So I did what any good friend would do and bought it off him at a discounted price. I borrowed Jack's Takegawa building box which made everything so much easier.

Just about everything in the engine is brand new, except for my 5 speed. All new bearings, Takegawa billet oil pump, cam chain gear etc.

20130403_211410_zpscf0d2ea9.jpg


20130404_092157_zps3cc799c7.jpg


Then got it into the bike with the baseline jetting specs from monkiesuncle - pretty much spot on just need to play with the needle and mixture screw. Took it on it's maiden voyage.

20130404_174143_zps382da96e.jpg


20130405_121038_zps7ef893b3.jpg


Big update coming soon.
 
She looks sweet! as :)
bett sounds amazing around town!!.
 

Latest posts

Back
Top