Re: "Barn find" 82 FA50

Alex Drake /
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I got my used CDI and coil and now I have good spark but I still can't get it to start or run. These are the things I have checked:

Timing- the mark on the stator and the flywheel both line up perfectly with the mark on the case at TDC. I haven't hooked up a timing light but I think this should be a good starting point. Removed both coils on the stator, cleaned the mounting surfaces, and used a little dielectric grease to prevent future corrosion.

Fuel supply- I'm getting good flow through the petcock and can see the fuel moving when I go to Prime to fill the bowl. All of the fuel supply lines are new.

Air- I have the stock air filter setup with all new parts. There is no change with filter installed or removed.

Compression- I have a new 60cc kit from treats. Ring gap and orientation are good, head and cylinder gaskets are new, head nuts are torqued to 90 inch/lbs. I used my regular automotive compression tester and only got 40 psi, but it has a 14 inch rubber hose so I don't think that really tells me anything.

Spark plug- It is sparking and I occasionally get a pop when I'm kicking it. It is a new NGK BP4H plug with FSM gap. It smells of fuel when I pull it out but doesn't have any obvious signs of combustion going on.

Carb- New 12mm clone carb from treats. I disassembled and cleaned out a few flakes of metal that were in there. Set float height to spec and installed a new 82 main jet and 20 idle jet. Also set the mixture screw to 1.75 turns out per the book. Throttle and choke both operate smoothly.

Crankcase- I got a new conn rod and bearings pressed on and have new viton crank bearing seals (along with all the other seals on the bike). I sealed the 2 halves of the crankcase with HondaBond.

Exhaust- New MLM next level stock pipe with new gasket.

Intake- I looked at the reeds and they seem to be working as they should. As far as I can tell they close tightly and don't have any chips or anything. The molded rubber gasket where the intake joins to the crankcase looks fine. Should this have sealant?

I tried squirting some fuel into the spark plug hole and then cranking but it still didn't fire at all. I've been through Fred's guide several times and I think I have considered all of the options. I really don't know where to go from here. Anyone have any ideas? Thanks!

Alex

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  "Barn find" 82 FA50Topic by: Alex Drake Alex Drake 05/15/22 08:27PM
  Re: "Barn find" 82 FA50Re: Steven Bolduc Steven Bolduc 05/16/22 06:06AM
  Re: "Barn find" 82 FA50Re: Douglas Mackinnon Douglas Mackinnon 05/16/22 04:56PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 05/18/22 08:45PM
  Re: "Barn find" 82 FA50Re: P D P D 05/19/22 03:55PM
  Re: "Barn find" 82 FA50Re: Douglas Mackinnon Douglas Mackinnon 05/19/22 06:17PM
  Re: "Barn find" 82 FA50Re: P D P D 05/19/22 06:19PM
  Re: "Barn find" 82 FA50Re: Douglas Mackinnon Douglas Mackinnon 05/19/22 08:00PM
  Re: "Barn find" 82 FA50Re: P D P D 05/19/22 08:32PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 05/24/22 08:20PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 06/07/22 08:02PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 06/07/22 08:03PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 06/07/22 08:12PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 06/07/22 08:28PM
  Re: "Barn find" 82 FA50Re: Jack Rutherford Jack Rutherford 06/07/22 10:42PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/16/22 02:39AM
  Re: "Barn find" 82 FA50Re: Ron Peek Ron Peek 08/16/22 03:57PM
  Re: "Barn find" 82 FA50Re: Peter v. Peter v. 08/19/22 06:06AM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/17/22 09:07PM
  Re: "Barn find" 82 FA50Re: P D P D 08/18/22 07:26AM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/24/22 01:44AM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/29/22 03:12AM
  Re: "Barn find" 82 FA50Re: P D P D 08/29/22 08:42AM
  Re: "Barn find" 82 FA50Re: Ron Peek Ron Peek 08/29/22 06:53PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/30/22 03:17AM
  Re: "Barn find" 82 FA50Re: P D P D 08/30/22 08:59AM
  Re: "Barn find" 82 FA50Re: Ron Peek Ron Peek 08/30/22 11:40AM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 09/13/22 08:18PM
  Re: "Barn find" 82 FA50Re: Axldeziak . Axldeziak . 09/13/22 09:36PM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 08/30/22 09:35PM
  Re: "Barn find" 82 FA50Re: Ron Peek Ron Peek 08/31/22 09:41AM
  Re: "Barn find" 82 FA50Re: Alex Drake Alex Drake 09/13/22 10:29PM
  Re: "Barn find" 82 FA50Re: Ron Peek Ron Peek 09/14/22 11:08AM

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