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IIRC Dennis Kirk and a few places have a bunch of upgrades for those I think even Wahl Bros does as well to improve how fast they are and clutch upgrades and what not. All those Z120s were the same just different colors and stickers on them the one thing they could all agree on back then,lol.
 

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When my youngest was 8 or so, the Skidoo trailer was at a snowpark showing off all the sleds. There was a z120 there, kidlet ran over to it and lifted up the back and was yelling at me to look! He thought that was very cool, HE could lift the back up. Then he sat on it, and saw the decals instead of gauges. He looked at me really puzzled- "How fast will this thing go, dad?" I told him 8-12 mph. He immediately got off and totally lost interest. He was on a Yamaha 300 and his "dad imposed" speed limit was 30, so that was a huge downgrade in his eyes. He had been riding for about a year by then, so going 8 mph just didn't seem to float his boat back then!

I still get a smile when I see one of those mini-sleds in a parking lot zooming around, nurturing the next generation of snowmobilers!
 

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Discussion Starter · #4 ·
IIRC Dennis Kirk and a few places have a bunch of upgrades for those I think even Wahl Bros does as well to improve how fast they are and clutch upgrades and what not. All those Z120s were the same just different colors and stickers on them the one thing they could all agree on back then,lol.
Yeah, it’s got a “performace kit” on it already. The final drive gear was wiped out (made of plastic). I have a new gear ordered already, as well as a new clutch. New brake band, carb is in the ultrasonic now. I’d like to buy a set of slides for it, but can’t find them anywhere!


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Discussion Starter · #9 ·
Made a bit of progress on the Mini Z. I messed up the chain measurement, so I had to order a new chain.

Got the carb cleaned up and put back together. New fuel lines, new throttle & governor linkage and springs, reset governor. Got the little thing idling nice and smooth. I have a little induction tach coming for it, I want to track hours and verify R’s on the motor.

I made a couple little clips for the front of the seat, then created a couple reviver pockets in the tunnel so I don’t have to try and get screws into the seat from below (up front). Now I can remove the seat very easily with removing only the rear screws. The design of the Mini Z (as opposed to the Cat/Polaris variants) make it much easier to work on the motor by simply removing the seat.

Now we wait for a few last parts and it’s ready for snow to fly!


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Discussion Starter · #13 ·
Where did you get that foam? Been looking for something to replace a couple pieces under the hoods of mine.
Foam Factory Inc.

It was quite affordable, and a little spray adhesive made install very easy. I bet it knocked the idle decibels by 40%. Not that it’s a loud little machine, I just want it quiet as possible.

My little guy is chomping at the bit to get on this thing!


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