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Title: carb numbers


sblt500r - December 10, 2010 01:57 AM (GMT)
i have 2 zilla stock carbs. they came with my 500 back when i bought it in 97. my 500 is a 88. the carbs came with stock 88 jetting. i ran one for years. i don't need them any more and haven't used them in awhile so i want to sell them.

what are the id numbers supposed to me? year model it was on?

mine has 43B00 on it. is that suppost to be an 87 carb?

who marked these id numbers with the years? is it in the manual? or is it something Q said?

what makes an 87 carb different? can it be updated?

i have another parts carb i'm thinking of boreing out and screw with.


Kyle T - December 10, 2010 02:12 AM (GMT)
QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
what are the id numbers supposed to me?  year model it was on?

What do they mean? Internals and model year. 87 is 43B00, 88 is 43B10, 89-90 are 43B20.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
mine has 43B00 on it.  is that suppost to be an 87 carb?

Yup.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
who marked these id numbers with the years?

Mikuni.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
is it in the manual?

Yup.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
or is it something Q said?

Hell no.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
what makes an 87 carb different?

A bunch of stuff. Here's a little something I did a while back.
CARBURETOR
The carburetor assembly used on the 1987 model, 13200-43B00, is changed on the 1988 model, to 13200-43B10, which supercedes to the one used on the 1989-1990 models, 13200-43B20.
The differences are the float bowl gasket, jet needle retaining clip, pilot jet, needle jet, jet needle, main jet ring, main jet, floats, float bowl screws, piston valve spring, piston valve, air vent hose retaining plates, piston valve spring seat, air vent hoses, anti-slosh plate, fuel line retaining clip, and fuel line retaining clip screw.
I don't know how the float bowl gaskets, jet needle retaining clips, main jet rings, float bowl screws, piston valve springs, or piston valve spring seats are different.
The pilot jet is changed from 30 on the 1987 model, to 22.5 on the 1988-90 models.
The needle jet is changed from O-6 on the 1987 model, to R-2 on the 1988-90 models.
The jet needle is changed from 6DH6-3 on the 1987 model, to 6DK3-3 on the 1988-90 models.
The main jet is changed from 420 on the 1987 model, to 350 on the 1988-90 models.
The floats are changed from 2 round ones on the 1987 model, to 2 bullet-shaped ones on the 1988-90 models.
The piston valve is changed from 2.0 on the 1987 model, to 4.0 on the 1988-90 models.
The air vent hose retaining plates are changed from having 5mm mounting holes and being secured by the float bowl screws on the 1987-89 models, to having 4mm mounting holes and being secured by the top cap screws on the 1990 model.
The air vent hoses are changed from 4x7x400mm on the 1987 model, to 4x7x400mm and 4x7x325mm on the 1988-89 models, to 4x7x400mm on the 1990 model. There may be other changes as well.
The anti-slosh plate is added on the 1988-1990 models.
The fuel line retaining clip is added on the 1988-1990 models.
The fuel line retaining clip screw is changed on the 1988-1990 models. It is now longer by 1mm.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
can it be updated?

I don't think so.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
i have another parts carb i'm thinking of boreing out and screw with.

Do it.

grkguy - December 10, 2010 02:15 AM (GMT)
the 87 carb can be RX'ed to i thik it just cost more,

VegasG - December 10, 2010 02:29 AM (GMT)
QUOTE (grkguy @ Dec 9 2010, 06:15 PM)
the 87 carb can be RX'ed to i thik it just cost more,

Rx'ed? Grk that saying is dead, you need to get with the times. I thought you knew!
It's call "worked" now.

sblt500r - December 10, 2010 02:34 AM (GMT)
QUOTE (VegasG @ Dec 9 2010, 10:29 PM)
QUOTE (grkguy @ Dec 9 2010, 06:15 PM)
the 87 carb can be RX'ed to i thik it just cost more,

Rx'ed? Grk that saying is dead, you need to get with the times. I thought you knew!
It's call "worked" now.

what did he rx?! thought they were just bored out to 41.5 mm

Kyle T - December 10, 2010 02:37 AM (GMT)
Saying "RXed" in today's world is like saying "I'll be right back, I need to hand crank start my model T".

kent824 - December 10, 2010 02:37 AM (GMT)
I know that the 87 carb has a single-sided blade slide and 88-90 has a doubled-sided blade slide

VegasG - December 10, 2010 02:39 AM (GMT)
QUOTE (Kyle T @ Dec 9 2010, 06:37 PM)
Saying "RXed" in today's world is like saying "I'll be right back, I need to hand crank start my model T".

I just shAt myself reading that! HighFive Kyle! SMACK! that was the best thing i have heard in awhile!!!

Mind if i borrow it?

sblt500r - December 10, 2010 02:39 AM (GMT)
QUOTE (Kyle T @ Dec 9 2010, 10:12 PM)
QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
what are the id numbers supposed to me?  year model it was on?

What do they mean? Internals and model year. 87 is 43B00, 88 is 43B10, 89-90 are 43B20.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
mine has 43B00 on it.  is that suppost to be an 87 carb?

Yup.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
who marked these id numbers with the years?

Mikuni.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
is it in the manual?

Yup.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
or is it something Q said?

Hell no.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
what makes an 87 carb different?

A bunch of stuff. Here's a little something I did a while back.
CARBURETOR
The carburetor assembly used on the 1987 model, 13200-43B00, is changed on the 1988 model, to 13200-43B10, which supercedes to the one used on the 1989-1990 models, 13200-43B20.
The differences are the float bowl gasket, jet needle retaining clip, pilot jet, needle jet, jet needle, main jet ring, main jet, floats, float bowl screws, piston valve spring, piston valve, air vent hose retaining plates, piston valve spring seat, air vent hoses, anti-slosh plate, fuel line retaining clip, and fuel line retaining clip screw.
I don't know how the float bowl gaskets, jet needle retaining clips, main jet rings, float bowl screws, piston valve springs, or piston valve spring seats are different.
The pilot jet is changed from 30 on the 1987 model, to 22.5 on the 1988-90 models.
The needle jet is changed from O-6 on the 1987 model, to R-2 on the 1988-90 models.
The jet needle is changed from 6DH6-3 on the 1987 model, to 6DK3-3 on the 1988-90 models.
The main jet is changed from 420 on the 1987 model, to 350 on the 1988-90 models.
The floats are changed from 2 round ones on the 1987 model, to 2 bullet-shaped ones on the 1988-90 models.
The piston valve is changed from 2.0 on the 1987 model, to 4.0 on the 1988-90 models.
The air vent hose retaining plates are changed from having 5mm mounting holes and being secured by the float bowl screws on the 1987-89 models, to having 4mm mounting holes and being secured by the top cap screws on the 1990 model.
The air vent hoses are changed from 4x7x400mm on the 1987 model, to 4x7x400mm and 4x7x325mm on the 1988-89 models, to 4x7x400mm on the 1990 model. There may be other changes as well.
The anti-slosh plate is added on the 1988-1990 models.
The fuel line retaining clip is added on the 1988-1990 models.
The fuel line retaining clip screw is changed on the 1988-1990 models. It is now longer by 1mm.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
can it be updated?

I don't think so.

QUOTE (sblt500r @ Dec 9 2010, 08:57 PM)
i have another parts carb i'm thinking of boreing out and screw with.

Do it.

kyle thats too much info. i'll have to look at the jets to see if they match up. i know the main and pilots are 88 size.

whats a bullet float look like? only seen round floats

the anti slosh plate, thats the plate thats rivited to the carb body? with what looks like screws but there not?

will an 87 carb not run with 88 jets? cause this thing ran fine for 10 years!

kent824 - December 10, 2010 02:41 AM (GMT)
I was told that Tony @ T&N says not to bore larger than 41.5 mm you will get air leaks most of the time if they are bored larger.

Kyle T - December 10, 2010 02:47 AM (GMT)
QUOTE (VegasG @ Dec 9 2010, 09:39 PM)
I just shAt myself reading that! HighFive Kyle!

In Borat voice "HIGH FIVE!"

QUOTE (VegasG @ Dec 9 2010, 09:39 PM)
SMACK!

Ow.

QUOTE (VegasG @ Dec 9 2010, 09:39 PM)
that was the best thing i have heard in awhile!!!

Glad you liked it!

QUOTE (VegasG @ Dec 9 2010, 09:39 PM)
Mind if i borrow it?

Go right ahead. One thing though. If you are using it to talk about Q, could you please put "As Kyle T would say" in front of it? Thanks! :lol:

QUOTE (sblt500r @ Dec 9 2010, 09:39 PM)
kyle thats too much info.

Sorry, can't help it.

QUOTE (sblt500r @ Dec 9 2010, 09:39 PM)
i'll have to look at the jets to see if they match up.  i know the main and pilots are 88 size.

That's a start I suppose.

QUOTE (sblt500r @ Dec 9 2010, 09:39 PM)
whats a bullet float look like?  only seen round floats

From the side, it looks like a bullet. That's what they looked like to me, so that's what I called them. You'll know them when you see them.

QUOTE (sblt500r @ Dec 9 2010, 09:39 PM)
the anti slosh plate, thats the plate thats rivited to the carb body?  with what looks like screws but there not?

That's it. It's been a while since I was in a Zilla carb, but I'm sure there's something to hold it in.

QUOTE (sblt500r @ Dec 9 2010, 09:39 PM)
will an 87 carb not run with 88 jets?  cause this thing ran fine for 10 years!

It might. I'd be concerned about the other stuff too. Jet needle, needle jet, and throttle valve.

sblt500r - December 10, 2010 03:39 AM (GMT)
can you tell if its an 87 by pictures? i'll take some pictures of the insides.

could an early 88 had the 87 carb with different jets?

what i'm gettting at, is i think these are 88 carbs. i don't think the guy i got it from ever changed the carb.

Kyle T - December 10, 2010 03:42 AM (GMT)
QUOTE (sblt500r @ Dec 9 2010, 10:39 PM)
can you tell if its an 87 by pictures?  i'll take some pictures of the insides.

OK.

QUOTE (sblt500r @ Dec 9 2010, 10:39 PM)
could an early 88 had the 87 carb with different jets?

Dunno.

QUOTE (sblt500r @ Dec 9 2010, 10:39 PM)
what i'm gettting at, is i think these are 88 carbs.  i don't think the guy i got it from ever changed the carb.

43B10 will tell you if they are.

MotorGeek - December 10, 2010 03:15 PM (GMT)
QUOTE (sblt500r @ Dec 10 2010, 03:39 AM)
can you tell if its an 87 by pictures? i'll take some pictures of the insides.

could an early 88 had the 87 carb with different jets?

what i'm gettting at, is i think these are 88 carbs. i don't think the guy i got it from ever changed the carb.


The "87" carb is a little different but it will work equally well to the "88" carb when the right modifications are performed. Make sure that the slide and slide bore of the carb are not worn out. If the slide bore checks out ok it is probably a good candidate for the 41.5mm upgrade.

Jerry


The Quadzilla King - December 12, 2010 03:26 AM (GMT)
43B00 Floats are affixed to the bowl. 43B10-20 affixed above the bowl. user posted imageuser posted imageuser posted imageuser posted imageuser posted imageuser posted image

sblt500r - December 12, 2010 03:41 AM (GMT)
thanks for the pictures. whats the point of the very last one?

so it looks like i have 87 carbs. anybody interested in a 87 carb? and a parts carb.

The Quadzilla King - December 12, 2010 03:51 AM (GMT)
My pleasure. Happy to be of assistance.
As far as the Slim Shady photo, Just being an unconscionable ball breaker.

ruthless - December 12, 2010 04:19 AM (GMT)
im thinkin i could be interested if i could see some pics.inside and out if u dont mind

kent824 - December 12, 2010 06:26 AM (GMT)
What kind of $$ figures are you looking to get Shawn PM me or post here either way.
Thanks

sblt500r - December 12, 2010 07:49 PM (GMT)
i'll get some pictures and post them on here.




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