HT131 help before I crush it for good

[bill saf]

@Struggle sent you PM some shop mans if you dont have them. Did you replace or clean the screen filter behind the excel spring?

 

[cus_deluxe]

I really like my PPT-280. For all the reasons you don't like the Stihler, & I'm a Stihl Head.

Yep, really like my ppt2620 (replaced 266). Only 1/2 gal of fuel through it but its a great runner. Never was a fan of the HT we used at work.

 

[wcorey]

Flywheel slip?

 

[DELETED (Struggle)]

Flywheel key is fine.

Here's a video of it idling and what it does

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[Lone Wolf]

Is it an OEM carb and coil? run it in the dark see if spark is jumping to ground from the hi tension coil leed to plug.You check the valve clearance? No vac or pressure leaks you say?

 

[DELETED (Struggle)]

New one carb and coil. No pressure or vac leaks. Leak down test well under 10%. New spark plug. Tested fuel. Valve clearance at 0.100mm.


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[hseII]

New one carb and coil. No pressure or vac leaks. Leak down test well under 10%. New spark plug. Tested fuel. Valve clearance at 0.100mm.


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Crazy question- do you know the Pole isn't bent, & the chain is free?

 

[DELETED (Struggle)]

Poles not bent and turns freely. Currently have no bar on it. Also replaced line from tank grommet to filter. No change


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[CJ Brown]

Valves springs not cracked or broken? New spark plug?

 

[bill saf]

set valves at .010 tho did you look at gasket for carb heat sheild at head or heat sheild for crack

 

[DELETED (Struggle)]

No heat shield on carb side. Gasket good

I sure hope I get to laugh about this and it's something simple soon.

I removed valves and springs no issues found with ether.


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[Lightning Performance]

I bought one just like that. Drove me crazy three days or so. I kept putting down before I smashed it to bits. Clogged impulse. Runs like a champ. Had some nasty black death in the hole. Spray it out with 2+2 and high pressure air. And don't wreck *s-word be gentle.

Good Luck @Struggle

 

[Lone Wolf]

New one carb and coil. No pressure or vac leaks. Leak down test well under 10%. New spark plug. Tested fuel. Valve clearance at 0.100mm.


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But are they OEM carb and coil?It sort of sounds like the coil. Positive it is the correct coil?

 

[andybcumming112]

When you took the cam out did you time the engine back.

 

[CJ Brown]

When you try to rev it, if you could squirt some fuel into the carb at the same time it would indicate if it's a fuel or electrical issue.

 

[angelo c]

Is the choke fully open/closed when called upon. Will it accelerate when choke is closed ?
I had a saw do the same thing. Throttle plate was being impeded by backing plate.

 

[DELETED (Struggle)]

OEM carb and coil from Stihl. I have it completely apart again down to crank removed. No blockage of impulse. It just makes zero sense to me. I put a timing light on it and it rev enough to move the mark until it quit so advance appears to be working.

It will bench idle until you shut it off or rev it.


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[Simondo]

Just as a check point .... you as likely know anyhow.

 

[DELETED (Struggle)]

Thanks for that guide I've tried three carbs to no avail. One new left the touched and the others with varying settings no change


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[Simondo]

Thanks for that guide I've tried three carbs to no avail. One new left the touched and the others with varying settings no change


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Just a thought...in the trigger housing ...as you pull on the trigger are you getting a short on the kill wire . That has been a constant thing you have had there with all the other changes you made swapping out components .