I will try another bar and chain, will drop it from 25” to 20”
044 hybrid lacks balls in the cut
- Thread starter langdon19
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Yeah perhaps the low jet is bogging the saw, I will try leaning it out.
I’ll try it sideways upsidown and see what it does.
Pressure vac test is done with carb adaptor to Mity vac, exhaust blocked, held 10psi under pressure and vaccuum.
Decomp is plugged
I will try a shorter bar and chain, I can remove the fuel filter but it is new. When I remove the carb it squirts a fair bit of fuel at you.
Try sending the air through the spark plug hole. You can remove the ceramic middle from the spark plug to make an adapter for the bungs that come with your mityvac. Block the impulse line with a golf tee and block behind the carb with rubber inner tube and put the carb on. Then pump it up to 10psi and dunk in water. This will 100% prove to you that there is no air leak.
For ease could I just not do as I already do and put it under water?
How were you blocking the impulse line? By carb adapter do you mean the intake boot? What I am trying to say is that when pressure testing I try to get a saw as fully assembled and as close to running conditions as possible. If not its easy to miss a leak. The best test is to test everything from exhaust port to behind the carb, plugging decomp, end of impulse hose and spark plug hole (one of those takes the mityvac and air).
But yes nothing wrong with water testing as it is as a first step.
But yes nothing wrong with water testing as it is as a first step.
SteveSr
Addicted to ArboristSite
This is not encouraging. 1123 is the series number for the 025 / MS 250 series of saws.
For an OEM Stihl jug you should see "Mahle" (the cylinder manufacturer), 1128 (model series), and the Stihl "S" trademark. Get out a flashlight and inspection mirror and have another go at it.
My 044 full wrap is .017-18 and my 440 is .024. Just for reference.
I think its just a shadowy 1128.
Does it hang rpms when comming down to idle?
If you stab the throttle does it rev quick and clean or fall on its face.
If it were mine id probly get rid of the zama for the larger of the two walbaros. I firget the numbers.
Im running the smaller walbaro wishing i had the bigger carb.
Can you make a vid to share?
If you stab the throttle does it rev quick and clean or fall on its face.
If it were mine id probly get rid of the zama for the larger of the two walbaros. I firget the numbers.
Im running the smaller walbaro wishing i had the bigger carb.
Can you make a vid to share?
SteveSr
Addicted to ArboristSite
Could be. there is also something stamped below it. OP needs to clean that junk off.
It’s the Stihl carb adaptor, it swaps with the carb and has a barb that goes down the impulse line.
Would 0.035 squish be the cause of the problem. I’ve never played with squish but would 0.01 difference make it a crap saw.
For my interest how do you guys lower the jug, Emry and figure 8’s on a piece of glass?
Hi all
Reset the carb keeping the low jet on the lean side and the saw performs
It was over rich in the cut due to the low jet being wound out too far.
Not sure if anything has changed as a lot does not add up
1 initially after rebuild I had to set the low two turns out to get it to rev up, I am wondering if I had oil in the lower case from the rebuild that was choking it.
2 the carb swap with a 44 should have fixed it imo, still was boggy.
Thanks for all the help and suggestions
Reset the carb keeping the low jet on the lean side and the saw performs
It was over rich in the cut due to the low jet being wound out too far.
Not sure if anything has changed as a lot does not add up
1 initially after rebuild I had to set the low two turns out to get it to rev up, I am wondering if I had oil in the lower case from the rebuild that was choking it.
2 the carb swap with a 44 should have fixed it imo, still was boggy.
Thanks for all the help and suggestions
