Walbro HDA199 Repair

[nmurph]

Can someone point me to Scott's video where he talks you through the fix for these carbs? I have searched on AS and YouTube and can't find them. I viewed them very recently.

 

[LowVolt]

I think cowroy has it on his YouTube channel also...

 

[RedFir Down]

I just checked both youtube channels and googled it every which way... cant find it!
It was probably removed, not sure.

 

[LowVolt]

Subscribe to Scott kunz channel and search hda199vid

 

[nmurph]

I scrolled through every vid on scotts list and didn't see it??

 

[RedFir Down]

What exactly are you wanting to know? Maybe one of us here remember.

 

[LowVolt]

 

[RedFir Down]

How did you find that?

 

[LowVolt]

How did you find that?

I was just looking at it the other day. I don't know? I am subscribed to his youtube channel and it was on there.

 

[RedFir Down]

Good deal, Thank you!

 

[RedneckChainsawRepair]

I have it all saved with thread with his info on chainsaw repair site too. Not lost there yet.

 

[Chris-PA]

IIRC the main issue is that you must have an atmospheric vent for the diaphragm. On those the vent is routed through a passage in the carb body rather than through a hole in the cover. An incorrect kit blocked off the hole.

 

[flyboy553]

That is the only thing I see for sure that he did, was to put that hole in the cover. I didn't take it apart to see what else, was too interested in getting it put on my saw and getting it back in the fold!

Ted

 

[roncoinc]

A few years back got a bad 359 that had a problem.

easy to tell it was the carb.

took it off and looked and thot wth is all this crap ??

rebuilt it like a reg carb and noticed no breather hole so drilled one,,no problem

easy solution to see.

 

[tree monkey]

you must replace the blue diafram as well

 

[moody]

you must replace the blue diafram as well

They're way too stiff.

 

[stubnail67]

now that's why i became a member of AS.... that sort of stuff right there good stuff.....

 

[nmurph]

Thanks for figuring it out, Scott. I have a box of 199's to go through. I also have 3-4 175's and a 159 that supposedly suffer from the same affliction.

 

[wcorey]

...and don't forget to check the pop off pressure.

I had three of these with issues, the hole in the cover did nothing, changing to the tan pump diaphragm fixed two and the third seems just hopeless.

 

[Modifiedmark]

When you get done with those,I have a 164 that needs figured out. POS Walbro.

Thanks for figuring it out, Scott. I have a box of 199's to go through. I also have 3-4 175's and a 159 that supposedly suffer from the same affliction.