Problem servicing Mikuni carb on Hondq GCV520
- Thread starter Maxrevs
- Start date
bertsmobile1
Lawn Royalty
No no no
You crank up the compressor to 200 PSI and bow the crud in so hard it will never come out thus justifing buying a new carb:laughing:
BlazNT
Lawn Pro
:laughing:I needed that laugh.
bertsmobile1
Lawn Royalty
Don't you cringe right down to your socks when a customer walks in with a carb and tells you they have cleaned it and blown it out but it still won't work.
I had one that took a weeks worth of ultrasond before the crud would come out which was just some rust jambed up the idle line so hard some was poking out of the idle outlet.
Had another one where the customer had shoved an air line down the float vent channel and blown the float bowl off. He wanted to know if I could glue it together.
I had one that took a weeks worth of ultrasond before the crud would come out which was just some rust jambed up the idle line so hard some was poking out of the idle outlet.
Had another one where the customer had shoved an air line down the float vent channel and blown the float bowl off. He wanted to know if I could glue it together.
HelpfulFeedback
Forum Newbie
I found this old thread while working on my carb and finding the outer part of the plugs, loose in the bowl ( they look like tiny- tiny black plastic spools ...about the size of a bb from a bb gun)....And not knowing what they were , I continued the cleaning...and found the pick-up tubes blocked (not knowing there were plugs) ....Note...2 brass tubes with a few tiny holes through the sidewalls ...extending from the carb body into recessed holes in the bowl..
Note: these are supposed to be blocked off at the end.
Not knowing this, I soaked and ultrasonically cleaned and poked the blockage in to the tubes like the originator of this thread knew better than to do. Throwing caution to the wind...I did not see this debris come out ( the passage is not straight) and thought it must have broken down into particules....but now I am doubtful of that.
So
I am a bit concerned, but, after installing makeshift replacement plugs, the engine runs great. The possible internal blockage didn't cause any problems (YET...at least in my 5 minute run test)....The engine started right up and ran great.
I am greatful for this thread because it was all I could find to explain those loose items in the bowl were and it let me know to cap the tubes. Good luck figuring that out from the carb exploded views at the part sites
BTW, these plugs are Part Number:16168-Z0A-004 on a Mikuni carb off a GXV530 HONDA engine.
Search the part number to get an image of the plugs.
Note: these are supposed to be blocked off at the end.
Not knowing this, I soaked and ultrasonically cleaned and poked the blockage in to the tubes like the originator of this thread knew better than to do. Throwing caution to the wind...I did not see this debris come out ( the passage is not straight) and thought it must have broken down into particules....but now I am doubtful of that.
So
I am a bit concerned, but, after installing makeshift replacement plugs, the engine runs great. The possible internal blockage didn't cause any problems (YET...at least in my 5 minute run test)....The engine started right up and ran great.
I am greatful for this thread because it was all I could find to explain those loose items in the bowl were and it let me know to cap the tubes. Good luck figuring that out from the carb exploded views at the part sites
BTW, these plugs are Part Number:16168-Z0A-004 on a Mikuni carb off a GXV530 HONDA engine.
Search the part number to get an image of the plugs.