Author Topic: 1980 AG175 Project smoker  (Read 1048 times)

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Offline Mr.Mazza

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1980 AG175 Project smoker
« on: December 03, 2018, 01:12:48 AM »
Thought I'd share the backstory and build progress of my 1980 Yamaha AG175 2 stroke.

So back in January I crashed my Triumph into a ditch 3500kms from home, this resulted in a shoulder reconstruction and loss of my job (I finished my mechanic apprenticeship under injury and couldn't be rehired as a tradesman injured)
After 4 months of rehab I was going stir crazy so I decided to buy a little project bike to keep myself busy, enter the 1980 Yamaha Ag175 (First picture)

I got it home and after a couple days I had rebuilt the carby, reseated the flywheel and replace the coil to get it running, it ran fairly well all things considered.

I got stuck into making it my own, I rubbed back the blue paint and knocked all the bog off to reveal the true life story of this bike, I decided to keep it looking ratty for now and just cleared over the tank, pulled the wheels off, found a 21" front to go on it and repainted those.

To replace the once fitted lighting system I bought some cheap parts from eBay and made my own wiring loom up, took awhile to run it all nicely but it's there now.

Project got stalled a few months but in the meantime I got cleared to work at a small engine repair shop as I could do this with a busted shoulder, this was good because I needed to fabricate a battery box to house my new larger 12v battery and ignition barrel.

With this being done, I finally made an adapter plate for the speedo drive to my new front wheel and some little brackets here and there.

This turned into a ramble but all that is now left to do is replace the crankshaft seals (It's burning G/Box oil) and rewire the back for the better tail light/indicator setup, and wire up the horn then it's all road legal and will be my to work bike.

I ended up buying a secondhand motor to rebuild completely in my spare time, just in case.

For those who don't know a AG175 is built off a DT175 Twin shock frame with a slightly modified engine; Smaller ports and a '5 up box' (Made it easier for farmers to use apparently?) and only sold in Australia and New Zealand, somehow I can still buy original Yamaha parts for it.

Anyhoo, in for those who hate walls of text, here is my two stroke project bike!
Driving a car is watching a movie, riding a motorcycle is starring in the movie

Offline jaytee-nz

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Re: 1980 AG175 Project smoker
« Reply #1 on: December 03, 2018, 07:12:58 PM »
Hey Mazza - there are often AG175 parts for sale here in NZ on Trademe (NZ Ebay equivalent).
Farmers here loved them so there's a lot of them around.
I have a Trademe account so happy to help you out if need be.
Cheers - JT

Offline Mr.Mazza

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Re: 1980 AG175 Project smoker
« Reply #2 on: December 03, 2018, 08:48:21 PM »
Ill keep it mind!

I had another look at the Gbox burning issue, turns out just had heaps of pre mix in the tank and I switched to a smokeless 2 stroke oil.
Normal ammount of smoke now and all blue so ill keep an eye on it.
Ordered seals can become spares

Got it out for a 2km ride and she runs really good!
Driving a car is watching a movie, riding a motorcycle is starring in the movie