yamaha
yamaha PowerDork
9/23/13 3:03 p.m.

Anyone happen to have the schematic for a Holley 1904 1bbl carb? I am rebuilding mine that goes on the International. Just wondering what all I'm getting myself into.

iceracer
iceracer UberDork
9/23/13 5:26 p.m.

One barrel carb can't be much simpler. get a rebuild kit, it should have all the specs you need.

Streetwiseguy
Streetwiseguy UberDork
9/23/13 5:48 p.m.

Yep. Decent kit will have an exploded diagram and all the specs you need.

oldeskewltoy
oldeskewltoy Dork
9/23/13 10:08 p.m.

http://c1518311.r11.cf2.rackcdn.com/holley_1904_manual.pdf

novaderrik
novaderrik PowerDork
9/23/13 10:55 p.m.

there's probably about 5 screws in the whole carb... and a float... and a needle valve...

oldopelguy
oldopelguy Dork
9/24/13 12:06 a.m.

Is that the cool glass fuel bowl model? Even if not, there are few carbs easier to rebuild than a 1 bbl Holley.

Mezzanine
Mezzanine Reader
9/24/13 12:12 a.m.

Don't be scared yamaha! I was totally scared as I'd never worked on carbs at all, but one rebuild later, I know they are really very simple. Think of all the simple folk who've come before you and successfully rebuilt those things. You can do it.

As mentioned, even the meanest rebuild kits have decent specs included.

novaderrik
novaderrik PowerDork
9/24/13 3:37 a.m.

before rebuilding it, make sure you have tried hitting it in the side with a screwdriver... that will fix most problems with old carbs..

914Driver
914Driver MegaDork
9/24/13 5:37 a.m.

You'll want either a rubber tipped air hose or a can of compressed air to blow out all the little passages.

I'm good at this stuff 'cause I usually do it 2 or 3 times .....

MadScientistMatt
MadScientistMatt UltraDork
9/24/13 8:48 a.m.

I rebuilt a Holley 1902 when I was 18 and had almost no experience working on cars. I just used the directions in a kit from NAPA and a bucket of carb cleaner. It was pretty straightforward.

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