Build Threads?

[Dolmar Junkie]

I have big heavy feet.....

And skinny aerodynamic legs that slice through the wind with maximum sack kicking efficiency...
But I digress, I am here for the builds ...
Back to your regularly scheduled program...

 

[Dolmar Junkie]

thank you it is fast and stout.

You wanna run em

 

[jake wells]

You wanna run em

GFY

 

[Dolmar Junkie]

GFY

I'm going back to the sensitive people thread...
Good For You 2

 

[Mastermind]

Bad JuJu on the little Echo.

 

[Mastermind]

I think the jug will clean right up.......but that will be Larry's call. If he wants a whole new top end........I'll go that route.

But........why in the hell did the little feller score?

 

[Mastermind]

I let it idle for a few minutes.........piss revved it a few times. Put the tach on it.......it was hitting 15,400 or so with a nice solid four stroke. Then.......it died.

 

[Deets066]

I let it idle for a few minutes.........piss revved it a few times. Put the tach on it.......it was hitting 15,400 or so with a nice solid four stroke. Then.......it died.

Debris I would count out, surely you wash each cylinder out.

Bevel that was possibly missed, doubt that

 

[Deets066]

Did you notice any sudden gain in rpm at any time when you were checking with the tach?

That is how I scored my 090

 

[Mastermind]

Debris I would count out, surely you wash each cylinder out.

Bevel that was possibly missed, doubt that

Yeah......I wash em out with brake parts cleaner.

I figured I missed a bevel too.......but not the case.

Did you notice any sudden gain in rpm at any time when you were checking with the tach?

That is how I scored my 090

Not at all. I piss revved it a few times......and it just sputtered out.

 

[Mastermind]

I'm seeing if it cleans up now.

 

[Adirondackstihl]

Cylinder/ piston clearance

 

[Mastermind]

Cylinder/ piston clearance

After a little sanding it looks as though it could be a clearance issue. That sounds like a cop out on my part though.

I'm still digging......

 

[TreeLife]

There are small portions of metal from around the decompression valve missing. Could have been damaged at install, or the piston could have made contact due to insufficient clearance and that could have been the result.

 

[Backtroller]

That was the 501p? That really stinks

 

[Mastermind]

I don't have a great camera........but I'll try and get some pics. Looks like it ate something.

There are small portions of metal from around the decompression valve missing. Could have been damaged at install, or the piston could have made contact due to insufficient clearance and that could have been the result.

I'm looking back at my "before" pics Dominick. You might be onto something.

 

[Mastermind]

Before assembly......

 

[Mastermind]

Nothing new missing.

 

[TreeLife]

Hmm...

 

[TreeLife]

What condition are the threads for both the decomp and the spark plug?