Re: ZA50 - anyone rebuilding them?

Jacob Fulton /
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I just replaced the pucks and flipped the second gear clutch on mine, and put a fresh top end/pipe one. Geared tall to keep rpms below 8500 rpm. For me this is a treats piston port kit/head, mlm peoples sidebleed pipe, 19/37 gearing. This is the “fast but reliable” setup I was recommended to follow, without having to worry or mess with shimming assuming you put them back in the right spot. I did not the first time and it wouldn’t roll backwards. I also didn’t put the roller bearings against spring tension so the transmission never engaged lol.

From my understanding, once you mess with aftermarket cranks, you need to nail down the low tolerance shimming part of the equation. Supposed to be easier with the official tool but it’s rare, I’ve been hoping someone holding onto it sends one to MLM for reproductions.

With that setup so far not really tuned, I get 74cc e50 kit like acceleration off the line in 1st. Hitting low 40s. My other ZA is geared even taller at 20/35 so I guess it might last longer but this season will be my first with ZAs, I’ll probably be posting here on results.

Detroit Moped works used to be the go to but they only do small/quick local repairs now. The mods mentioned above are easy to do though, just need to make sure you correctly take off the right hand threaded nut, and grab the second gear locking tool from treats. The tool the holds the sprocket isn’t worth it, just use a 8mm socket, it’s useless once you change that front sprocket. (edited)

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Subject Written By Posted
  ZA50 - anyone rebuilding them?Topic by: Charlie C Charlie C 01/11/21 12:03AM
  Re: ZA50 - anyone rebuilding them?Re: ♣Slew Foot♣ ♣Slew Foot♣ 01/11/21 12:16AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 12:19AM
  Re: ZA50 - anyone rebuilding them?Re: * wormdirt * * wormdirt * 01/11/21 12:24AM
  Re: ZA50 - anyone rebuilding them?Re: * wormdirt * * wormdirt * 01/11/21 12:37AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 12:41AM
  Re: ZA50 - anyone rebuilding them?Re: * wormdirt * * wormdirt * 01/11/21 12:21AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 12:36AM
  Re: ZA50 - anyone rebuilding them?Re: Chris Straub Chris Straub 01/11/21 12:42AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 12:47AM
  Re: ZA50 - anyone rebuilding them?Re: Ryan Graeme Ryan Graeme 01/11/21 02:00AM
  Re: ZA50 - anyone rebuilding them?Re: P D P D 01/11/21 09:41AM
  Re: ZA50 - anyone rebuilding them?Re: Daniel '' Daniel '' 01/11/21 10:39AM
  Re: ZA50 - anyone rebuilding them?Re: Jackerz ! Jackerz ! 01/11/21 10:34AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 10:46AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 10:53AM
  Re: ZA50 - anyone rebuilding them?Re: Overpriced Parts Overpriced Parts 01/11/21 11:32AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 11:58AM
  Re: ZA50 - anyone rebuilding them?Re: Jacob Fulton Jacob Fulton 01/11/21 12:17PM
  Re: ZA50 - anyone rebuilding them?Re: Overpriced Parts Overpriced Parts 01/11/21 12:33PM
  Re: ZA50 - anyone rebuilding them?Re: Jacob Fulton Jacob Fulton 01/11/21 01:21PM
  Re: ZA50 - anyone rebuilding them?Re: Trent Anderson Trent Anderson 01/11/21 04:45PM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 05:59PM
  Re: ZA50 - anyone rebuilding them?Re: Jay Rivett Jay Rivett 01/11/21 11:19PM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/11/21 11:58PM
  Re: ZA50 - anyone rebuilding them?Re: Overpriced Parts Overpriced Parts 01/12/21 01:19AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/12/21 09:14AM
  Re: ZA50 - anyone rebuilding them?Re: Graham Motzing Graham Motzing 01/12/21 10:31AM
  Re: ZA50 - anyone rebuilding them?Re: Jay Rivett Jay Rivett 01/12/21 11:13AM
  Re: ZA50 - anyone rebuilding them?Re: Alex Samul Alex Samul 01/14/21 10:28AM
  Re: ZA50 - anyone rebuilding them?Re: Graham Motzing Graham Motzing 01/14/21 10:32AM
  Re: ZA50 - anyone rebuilding them?Re: Charlie C Charlie C 01/14/21 04:25PM

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