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Message started by doh13 on 05/19/14 at 18:36:09

Title: Carb float bowl question (pic included)
Post by doh13 on 05/19/14 at 18:36:09

Hi i have been cleaning up my carb and I am wondering if the circled parts of the bottom of the carb bowl that I attached are joined up as i cannot seem to get air to go through the top hole to the bottom i sprayed plenty of carb cleaner ,compressed air, pressure washer through it there is no gunk anywhere else after i cleaned it. If air goes through the top hole it i guess i got some more cleaning to do ;D . http://i57.tinypic.com/25tyxrq.jpg

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/20/14 at 06:56:16

Anyone got an idea?

Title: Re: Carb float bowl question (pic included)
Post by verslagen1 on 05/20/14 at 07:23:46

The bottom of my fish tank looks better. :o

Clearly it's a hole, it must go somewhere.
but I don't recall. I try and check later.

This is one of those questions, you can't answer unless you got one in your lap too. And timing is everything. So ping back when someone might be at a place where they can go investigate.

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/20/14 at 07:36:21

6F7C6B6A75787E7C7728190 wrote:

Thanks , it was pretty nasty and the smell wasn't too pleasant it looks like new now lol I am waiting on a float then i will be able to try it but until then i would like to find out if the 2 holes on the float bowl connect if so i need to unblock it so that i wont have to remove the carb again to do more cleaning. I know that the copper tube to the left of the float in the pic goes down into the big hole on the float bowl and it seems like the bottom hole should be connected somehow but like i said i put high pressure water blasting through both holes and air still will not blow through.

Title: Re: Carb float bowl question (pic included)
Post by old_rider on 05/20/14 at 07:49:27

While doing a search for cleaning mikuni carbs I found this....

http://i600.photobucket.com/albums/tt90/Nemo_DeNovo/DSCN0215.jpg

I would suggest using a small wire... like a paper clip or some such to try to clean out that passage.

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/20/14 at 08:05:59

4E4D455348454453210 wrote:

Interesting I will assume it is still blocked off i did try a piece of wire carb cleaner 1200 psi of water pressure lol. The bottom hole isn't exactly lined up like in the link you sent so maybe the wire hit metal I will keep trying thanks again for the pic it helps confirm my suspicion that fuel suppose to go through there.

Title: Re: Carb float bowl question (pic included)
Post by Serowbot on 05/20/14 at 09:57:00

I just checked a spare carb I have... and I can blow a very small amount of air through that hole... it does exit out the other hole...
So,.. they are connected...
Keep cleaning... ;)...

Title: Re: Carb float bowl question (pic included)
Post by Bluesman on 05/20/14 at 11:38:04

A 0.10 to 0.20 guitar string will do the job.

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/20/14 at 12:54:00

3B2D3A273F2A273C480 wrote:

I just checked a spare carb I have... and I can blow a very small amount of air through that hole... it does exit out the other hole...
So,.. they are connected...
Keep cleaning... ;)...

Thanks so much for confirming air goes through the hole Serowbot i got some carb cleaner soaking then ill try a smaller wire like bluesman suggested to break through the gunk. If it wasn't for this forum id prob never get the bike started ::)

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/21/14 at 18:02:53

I managed to get carb cleaner and air to come up through the hole like in the pic old_rider posted after soaking the bowl in cleaner. I looked in the hole with a flashlight and the hole looks much smaller than the top and bottom hole so that's why the wire i was using wouldn't go through it. Im glad i didn't put it back together that way thanks again for the help guys.

Title: Re: Carb float bowl question (pic included)
Post by LANCER on 05/22/14 at 03:58:09

You need to be careful when using wire to clear a hole in the carb. Some of them are extremely small and if poked with wire that is too large you could actually push some metal into the hole and close it permanently. Always work GENTLY using just your fingertips when holding the wire.
A carb cleaning wire kit is pretty inexpensive compared to the price of a carburetor, and works wonders on a clogged-malfunctioning carb.

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/22/14 at 05:52:19

69646B6660773732050 wrote:

I did realize that after I seen how small the hole was but it was too late then :o I wasn't too rough with the wire I used though, there is good flow now through that hole so I am fairly confident there was no damage. I just need to get the replacement float in the mail so i can try it out and hope that I don't need a new float jet and seat . I have to wait weeks for new parts since im in the boonies.

Title: Re: Carb float bowl question (pic included)
Post by Dave on 05/22/14 at 05:55:20

OK....being the curious type....I want to know what that hole and tube does? Why would it be a seperate hole, with a restricted fuel flow?

Is that somehow related to the Enrichment Knob or TEV?

The brass tube and function are not shown in the diagram that I have for the CV carb - but the diagram does show the opening in the float bowl cross section.

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/22/14 at 06:04:14

I was thinking it might be something to do with the enrichment valve as well but i am also curious as to what it does I see no mention of it.

Title: Re: Carb float bowl question (pic included)
Post by justin_o_guy2 on 05/22/14 at 10:48:53

What are you cleaning that carb up for? Aint nothin WRONG with that carb,, man,, Little fresh gas a maybe a million miles its flush out all by itself..

Gracious,, thats a mess.. You know the history of it? How it got like that?

I dont run wires thru holes unless the little red tube on my can of carb cleaner cant seem to blast the crap out. WATCH Your Eyes..

I have been seen using cutting tip cleaners on stubborn areas, Tiny little round file thingies they are,,
If an aquarium got that ugly the fish would be dead,,

Title: Re: Carb float bowl question (pic included)
Post by doh13 on 05/22/14 at 13:11:26

6B747275686F5E6E5E66747833010 wrote:

The fuel in it was 7+ years old it was rotten thats for sure but the bike was kept inside so other than the nasty tank and bottom part of the carb it looks good all the electrical etc seems to work and it turns over I cant try to start it until my new carb float comes in hopefully sometime next week I tried to solder the old float but i gave up. after an hour of trying.