Re: 1989 Yamaha DT50 build thread

J D /
This single post is part of a larger thread. Start from the top or view this post in context.

Dude, that is a loooot of corrosion. Like mopedallday said, your carb is toast. In addition the the chem neutralization with evaporust, you're going to need to mechanically remove the debris. Put some bolts and nuts in the tank and shake all that crap loose so you can flush it out.

I'd be interested to see closer pics of the fairings and body. Is there any rot in the plastics or frame?

Regarding the piston being seized, WD40 might not cut it. PB plaster or another heavy duty penetrating/creeping oil might help. WD is more for water displacement (ergo "WD") and cleaning but it does a lot of stuff well enough. Best luck I've ever had was using diesel fuel (old dodge truck motor) but it took a loooong time. Also steel and cast iron so the chemistry might be different.

Good Luck!!!! Interested to see how this developes for you. (edited)

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  1989 Yamaha DT50 build threadTopic by: Nick MBC Nick MBC 07/04/19 12:52AM
  Re: 1989 Yamaha DT50 build threadRe: Brandon Weiss (Detective brandon to you) Brandon Weiss (Detective brandon to you) 07/04/19 12:57AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/04/19 01:08AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/04/19 01:01AM
  Re: 1989 Yamaha DT50 build threadRe: Brandon Weiss (Detective brandon to you) Brandon Weiss (Detective brandon to you) 07/04/19 08:42AM
  Re: 1989 Yamaha DT50 build threadRe: Alex hernandez Alex hernandez 07/04/19 10:05AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/04/19 12:44PM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 07/05/19 06:24PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/05/19 08:27PM
  Re: 1989 Yamaha DT50 build threadRe: Dirty30 Dillon Dirty30 Dillon 07/07/19 10:28AM
  Re: 1989 Yamaha DT50 build threadRe: P D P D 07/07/19 11:48AM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 07/07/19 12:44PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/07/19 11:04PM
  Re: 1989 Yamaha DT50 build threadRe: Graham Motzing Graham Motzing 07/08/19 10:20AM
  Re: 1989 Yamaha DT50 build threadRe: J D J D 07/05/19 04:10AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/05/19 11:00AM
  Re: 1989 Yamaha DT50 build threadRe: P D P D 07/05/19 11:11AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/05/19 11:50AM
  Re: 1989 Yamaha DT50 build threadRe: Blake MD No PM Plz Blake MD No PM Plz 07/05/19 11:55AM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/05/19 08:33PM
  Re: 1989 Yamaha DT50 build threadRe: Chris Szuba Chris Szuba 07/17/19 01:47PM
  Re: 1989 Yamaha DT50 build threadRe: Zach Riddle Zach Riddle 07/26/19 01:14PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 07/26/19 01:21PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 08/25/19 05:39PM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 08/25/19 06:41PM
  Re: 1989 Yamaha DT50 build threadRe: Zach Riddle Zach Riddle 08/25/19 06:45PM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 08/25/19 09:57PM
  Re: 1989 Yamaha DT50 build threadRe: Zach Riddle Zach Riddle 07/26/19 01:26PM
  Re: 1989 Yamaha DT50 build threadRe: Mr Chubbins Mr Chubbins 09/08/19 06:57PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 09/08/19 09:47PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 01/12/20 03:48PM
  Re: 1989 Yamaha DT50 build threadRe: P D P D 01/12/20 04:42PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 01/12/20 04:52PM
  Re: 1989 Yamaha DT50 build threadRe: P D P D 01/12/20 05:06PM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 01/12/20 05:31PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 01/12/20 06:33PM
  Re: 1989 Yamaha DT50 build threadRe: Daniel '' Daniel '' 01/12/20 07:05PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 03/19/20 03:53PM
  Re: 1989 Yamaha DT50 build threadRe: Brandon Weiss (Detective brandon to you) Brandon Weiss (Detective brandon to you) 03/19/20 05:38PM
  Re: 1989 Yamaha DT50 build threadRe: Graham Motzing Graham Motzing 03/20/20 01:00PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 03/20/20 01:49PM
  Re: 1989 Yamaha DT50 build threadRe: Graham Motzing Graham Motzing 03/20/20 05:44PM
  Re: 1989 Yamaha DT50 build threadRe: Nick MBC Nick MBC 03/20/20 09:26PM
  Re: 1989 Yamaha DT50 build threadRe: river 2strokes river 2strokes 01/14/20 12:51PM

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account