What's on your bench?

[jmssaws]

I don't believe metering level will affect high rpms but I could be wrong.

I had a 66 pass a vac test with the carb boot dang neer torn into.

At a idle wd 40 will find it if there is one.

At wfo does it maintain steady rpm or does it keep climbing? How many rpms is it turning? Are you certain it's not 4stroking?

 

[jmssaws]

Raise it and see if it helps.
Drill the jet

 

[Canadian farm boy]

At wot it does seem to hold steady but it screams. I can't hear anything that sounds at all like 4 stoking. I haven't put a tach on it yet. There doesn't appear to be a jet in the carb like what I'd expect to find in a walbro carb that I could drill out a touch. Maybe this is all in my head idk. If there is a jet that I could drill out a touch can someone tell me where it might be?

 

[jmssaws]

I've never had a carb apart like that one.

 

[Canadian farm boy]

So I found another Zama carb in my pile of junk parts. I removed the top cover just to see where the metering lever sat. The lever sits just above being flush with the top of the carb.
I adjusted the lever in my 044 carb to the same height. I'm gonna put everything back together and see what happens. Thanks for the tips guys. Fingers crossed this works.

 

[fossil]

This might be a good reference in future.

http://www.zamacarb.com/images/techsupport/DisassemblyC1U.pdf

http://www.zamacarb.com/pdfs/TechGuide_2007.pdf

 

[Canadian farm boy]

This might be a good reference in future.

http://www.zamacarb.com/images/techsupport/DisassemblyC1U.pdf

http://www.zamacarb.com/pdfs/TechGuide_2007.pdf

Thanks. I quickly looked at both PDFs. My metering lever was definitely set way to low according to the techguides.

 

[Canadian farm boy]

Gonna put everything back together. I won't be able to test/tune it tonight. It's to late. I'll play with it again tomorrow.

 

[jmssaws]

That's what I like about where I live ain't no one around to hear me.
Lots of times I've tried saws with headlights at midnight.

 

[Canadian farm boy]

It's all back together. Gonna run it tomorrow evening. Did a quick comp test while I had the plug out. This reading is after about a half hour of run time yesterday. I'm hoping it climbs some more after its broken in and the rings seat. Looks to be just a touch over 195psi. on my gauge

 

[PA Dan]

Nothing wrong with 195!

 

[Canadian farm boy]

I'm happy with it. Im kinda hoping to see 210 or better after a few tanks of fuel. Just gotta get this fuel issue figured out first.

 

[darkimpulse]

I'm happy with it. Im kinda hoping to see 210 or better after a few tanks of fuel. Just gotta get this fuel issue figured out first.

Really hope that solves your problem, I hate stuff like what your experiencing, makes me want to pull my hair out.

 

[VinceGU05]

Got a 180c in the bench. Was a non starter. Found the return spring on the choke was broken so it was just flapping in the breeze. New carb is adjustable too[emoji16][emoji1360] but had to drill in idle and H screwdriver holes.

 

[Black Dog Chainsaw]

View attachment 15303

Dave,
I see you ran short of the OEM baby screws for the top of the muffler cover. I use the proper length stainless T25's (M5x 8mm?) that I found on ebay for cheap. I know it's one more tool you have to use but they are very cheap compared to OEM hardware and they look pretty stock. They also came with locktite on the tip already.

Love the work and following your threads! Can't wait to see you soon, your grinder is lonely...

 

[Definitive Dave]

I sent Eric a giant grab bag of AM fasteners in all the proper sizes but I think he just used whatever he felt like when he put it together
It was literally a box of parts when I sent it to him. I bet the AM coil was fine but the only poly flywheel I had was used and when I got it back from him I saw it had bad magnet faintly written on the back of it.
I didn't even know that was a thing so I threw it away.

Stihl screws are T27 not T25 silly rabbit
I bet I carry 15 sizes by now, even 6 sizes of the self tappers for handle mounting and other stuffs

 

[dall]

I worked on a fs55r stihl weedeater wouldn't start tried a coil and a carb still nothing switched the flywheel and it runs

 

[Black Dog Chainsaw]

Stihl screws are T27 not T25 silly rabbit
I bet I carry 15 sizes by now, even 6 sizes of the self tappers for handle mounting and other stuffs

Yea but the T25's are less than $0.15 each when you get a 100 pack. I could care less if it's T25 or T27. I'm not paying Steal $1.25-1.60 every time i need one screw.

100% profit margin is beyond ridiculous!

 

[sefh3]

I've got a MS260 on the bench waiting for the piston and seals coming from Dave. Maybe next weekend....

 

[stihl_head1982]

Yea but the T25's are less than $0.15 each when you get a 100 pack. I could care less if it's T25 or T27. I'm not paying Steal $1.25-1.60 every time i need one screw.

100% profit margin is beyond ridiculous!

TROOF!