E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?

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

Hate posting simple stuff like this but I am fed up.

1975 Puch Maxi, 14mm Bing, believe it is the 1.5 or 2hp. Upjetted to 72, no air filter, Tecno boss pipe. Tops out at 35-40mph when running.

Ped was running fine, it stopped running due to debris in carb, then got rained on and had water in the tank and carb, so I cleaned/de-rusted the tank, replaced petcock, cleaned carb, and took the head and cylinder off to clean that, put it all back together, doesn't run. I have done this once before to replace the piston and it fired right up, so I don't think I overlooked anything. I have no idea what's happening here. Have spark, gas is flowing, and apparently it has compression - put a compression meter from harbor freight on it and it peaked at 90psi. Spark plug is new as of 2 months ago, Tecno boss pipe is about 8 months old. All gaskets are good.

When I engage the clutch and pedal, I hear a weird "squishy" sucking sound that I never noticed before. Maybe that's normal and I just never heard it. I have not put an air filter back on yet, but I have run this bike with and without. What else do I need to check?

Got this Maxi a year ago and it has run a handful of times, and when it runs, it runs awesome, so I at least know it is capable. (edited)

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Topic by: Adam D Adam D 06/19/14 09:57AM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 10:17AM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Mike A Mike A 06/19/14 11:44AM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Micheal H. Micheal H. 06/19/14 11:52AM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Probably Fred Probably Fred 06/19/14 12:29PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 12:53PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 12:52PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Marc Friedman Marc Friedman 06/19/14 01:13PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 01:55PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Marc Friedman Marc Friedman 06/19/14 02:28PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 02:41PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Marc Friedman Marc Friedman 06/19/14 03:07PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Princess Rapunzel Princess Rapunzel 06/19/14 03:00PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/20/14 09:13AM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Marc Friedman Marc Friedman 06/20/14 12:06PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Luke “Funkenet” Hosfield Luke “Funkenet” Hosfield 06/20/14 02:10PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: James O'Bryan James O'Bryan 06/20/14 02:59PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/25/14 04:12PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Double Trouble Dan Double Trouble Dan 06/25/14 06:06PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Mars   Mars   06/19/14 12:10PM
  Re: E50: Rebuilt engine/carb. Have spark, gas, compression, no air leaks. Won't start. What else can go wrong?Re: Adam D Adam D 06/19/14 12:54PM

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

Login or Create Account