help!!G.B. Mt carb question

[lha]

I need to know about a tsx 241. In the very bottom,where the high speed needle ends,is there supposed to be a tiny jet? If so,the remnants of it are stuck,as there is brass in the very bottom.I can clean out the old jet with left hand bits [carefully],Ijust need to know about the jet.It ran fairly good,I just decided to rebuild the carb while the weather is so bad .I have rebuilt many carbs &throttle bodies with good results.thanks in advance for any help---lha

 

[ffrnemtp]

This may very well be of no help to you as I am as new as new gets. I'm a marine mechanic and have rebuilt MANY carbs. Last weekend, I rebuilt my 8N carb. I had BIG trouble with the main (high speed) needle. It wouldn't thread back into the throttle body. Somebody had forced the wrong needle into the body and stripped it.

 

[GB in MT.]

(quoted from post at 09:29:46 02/06/10) I need to know about a tsx 241. In the very bottom,where the high speed needle ends,is there supposed to be a tiny jet? If so,the remnants of it are stuck,as there is brass in the very bottom.I can clean out the old jet with left hand bits [carefully],Ijust need to know about the jet.It ran fairly good,I just decided to rebuild the carb while the weather is so bad .I have rebuilt many carbs &throttle bodies with good results.thanks in advance for any help---lha

b:6636ffc63a][i:6636ffc63a]
IHA;
GOOD EYES, for finding that......Many people don't even know that is in there!!!!
Yes...that is supposed to be in there, BUT it is NOT a jet.!!! It is a simple, thin brass seat, for the needle end. That is NOT in all the TSX carbs, but many of them. Mostly in the TSX 241 and 241B's.
The seat, being fractured or broken, is/was caused by someone, forcing the needle through the seat too far, and either punched it loose or fractured it.
NOW....for a fix.!!!! If the seat you found, is mainly in tact.....Do not drill it out, ( I just leave them in and check to see if that is a problem, for running the carb.
If the seat is broken, or some of it missing, It may well be that you will HAVE to get ALL of it out of the Main jet passage.(take the itemizer nozzel out of the main jet passage and remove the Main jet, after cleaning the seat out of the needle hole, you have to insure that ALL the pieces of the seat are removed. Other-wise the Main jet could be clogged with parts of that seat.
Study this pic. to see how that needle seat is located/situated in the needle passage.
BTW: THAT needle seat is NOT replacable, and JMHO, is NOT needed for the operation of the carb., if the adj. needle is set to the "Two turns out" scenario.
Beore using a drill to get the broken seat out,.....try using a hooked, rod in the hole for the seat to remove it. I use dental tools just for that kind of removal.
FREE-HAND DRILLING.....is very hard to do, but can be done, if you use a STEADY HAND.
Check this out for where it is and how to get it out...if ya need to.!!!

Hope this helps ya!!!! Take your time, and keep me posted on how it goes for ya.
AGAIN.......GOOD EYES!!!!!!!! :wink: [/i:6636ffc63a][/b:6636ffc63a]

 

[Dell (WA)]

lha......you do know the BRASS mainjet is at the bottom of the removable slanted emulsion tube, don't you??? (use 6-point, 3/8"deep, 1/4"drive socket) thread is 8-32, use a hollow ground gunsmithing screwdriver ......Dell

 

[lha]

Thanks for the great reply,actually Iwas mistaking the seat [which is in good shape]for a jet.I will remove the nozzle& replace the jet if I can get it out clean.Icleaned the carb by the old method of boiling in an old slow cooker with soapy water,then rinsing,blowing out with air thencarb cleaner.it was cleaner than i've ever seen one.thanks again---lha

 

[ZANE]

I will say again that I don't see the point in ever removing a jet from a carburetor. It is simply a hole in a piece of brass. Just open it up with a probe and compressed air and put the carburetor back together with a new gasket. I use a welder's torch tip cleaner and probe the orifice with the biggest one that will fit the hole. Blow it out with compressed air and make sure it is open by feeling the air coming out the other end.

Zane

 

[JMOR]

(quoted from post at 11:42:15 02/07/10) I will say again that I don't see the point in ever removing a jet from a carburetor. It is simply a hole in a piece of brass. Just open it up with a probe and compressed air and put the carburetor back together with a new gasket. I use a welder's torch tip cleaner and probe the orifice with the biggest one that will fit the hole. Blow it out with compressed air and make sure it is open by feeling the air coming out the other end.

Zane

Awww, come on Zane! That would take away all the fun of buggering them beyond removal, drilling, re-tapping, replacing correct orifice with wrong one in Chink kit, trying to figure why it won't run right later, and never knowing whether or not there was a pot of gold under there that couldn't be seen or felt thru that little hole.
:lol: :lol: :lol: :twisted: :twisted: :twisted: