Magna Owners Of Texas

Public Forums => The Garage => Topic started by: magnagregcan on May 10, 2010, 09:07:18 AM

Title: 2000 Magna - carb removal
Post by: magnagregcan on May 10, 2010, 09:07:18 AM
I've seen reference to carb removal and cleaning every so often, but cannot seem to find it in the FAQ's.

I think Greg or Terry posted info a while back.

Can anyone please refresh for me?

thanks.

Greg
Title: Re: 2000 Magna - carb removal
Post by: tmds3 on May 10, 2010, 10:18:02 AM
You can find it here
http://www.magnaownersoftexas.com/tips.htm#A1.31
where are you located as I am fixing to do mine as well.I am in Bedford,Tx
Title: Re: 2000 Magna - carb removal
Post by: Cannon on May 11, 2010, 04:05:35 AM
And this thread has some usefull additional info on the subject.
http://www.magnaownersoftexas.com/forums/index.php?topic=3967.0

From my experience the only "tricky" part is to loosen the carbs from the rubber boots.
3 tips;
- make sure the engine/rubber boots are a bit warm, the rubber will be softer
- loosen the boots at the carb ends, not the itake ends.
- lubricate the top inside of the boots with just a little WD40 or similar before removing/replacing the carbs

Good luck! 
Title: Re: 2000 Magna - carb removal
Post by: magnagregcan on May 11, 2010, 05:22:22 AM
Thank you both for the info! I have a 95 with only 4100 miles on it and the carbs were never drained by the PO during storage. It will be interesting to see if I can remove and clean them myself. I bought the bike from Bernie in Maryland 3-4 years ago. I live in Halifax, NS (Canada) on the east coast.
Cheers!
Greg
Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 11, 2010, 09:40:15 AM
I found the attached write-up awhile back when researching, like you.  The pics attached helped the noob in me immensely.  It's not a complete write-up on clean/shim/re-jetting, but it gets the carb bank off, shows the necessary steps to add a shim, and you can combine it with the FAQ note for the cleaning and jetting.

A couple things that I didn't see in either article, some are mentioned above, but my own notes are:

o all is easy until you remove the carb bank
o I used a pry bar wrapped in a shop rag, but like already noted, be careful where you apply force and how much.  I've also heard of someone using a tie-down strap around the carb bank and over the frame to "encourage" it.
o Go slow when pulling the bowls, vacuum chambers, etc. apart and cleaning.  Do it one carb at a time.
o Hardest part of cleaning the slow jet is knowing if it's really clean.  I'm never quite sure.  If you are re-jetting anyway, the cost of 4 additional new/clean jets may be worth the cost.  I used a couple individual pieces of copper wire, stripped out of a larger wire, to push into the jet.  Care is needed here also as the jet is brass.  Should only put something through the jet that is softer than brass.  Also heard of someone using a strand from a broom.
o Remounting the carb bank can also be a pain point.  I used the "Z" method on the boots.  I put some synthetic grease on the inside of the boots, intake and carb sides.  Then placed the boots into a "Z" with the boots hung on one side of the intake "horn", loosly resting on the other side.  Place the carb bank over the boots with the carb "horn" hooked over the other edge of the boot from the intake horn.  You may need to place/re-place the boots after the carb bank is over the intake and boots since there is so little room.  Once placed, push down EVENLY on the carb air horn plate and the carb bank should "pop" into the boots and the boots will push themselves onto the intake horns.  Note that this does take some effort when pushing it down.

First time I did this it took about 5 hours.  Last time I did it, less than 4.

Rod.
Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 11, 2010, 09:41:19 AM
The "attached write-up" posted above was too large, won't allow it to be attached....
Title: Re: 2000 Magna - carb removal
Post by: LIMagna on May 11, 2010, 11:54:12 AM
Here's a link, complete with lots of pictures ... helped me a great deal when I first pulled mine:

http://www.shotsnapped.com/public/carburetor/

Title: Re: 2000 Magna - carb removal
Post by: magnagregcan on May 11, 2010, 01:10:44 PM
Thanks again to everyone! The pictures are enough help along with the text to instill confidence; I'm now looking forward to doing the work.
If any of you ever come to Nova Scotia, please do drop in for a feed of lobster and a beer. This offer doesn't expire until I do!
Just email a week or so ahead to confirm I'm still kicking.
regards,
Greg
Title: Re: 2000 Magna - carb removal
Post by: lragan on May 11, 2010, 03:00:10 PM
Wow!  It is a long ride to Nova Scotia, and at the end a lobster!!  You are tempting me big time.

I like lobster even better than beer.

Once in Maine with a singing group, a local restaurant owner liked our concert and invited us to a late night anything we wanted to eat free feed at his restaurant.  He had gorgeous lobsters, but many of my bonehead brothers ordered steak!  I couldn't believe it!!  Best lobster I ever ate.
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 11, 2010, 09:08:32 PM
Ok.. This is a post with several items.. Including Carb related stuff...

I have ~80K on my bike

(See attached pictures related to some of the questions I have below...

Well, I finally got up enough nerve and time to take advantage of "packge33's" great gift of some 105 main jets.
I bounced the Carbs out of my bike (my 1st time).
I cleaned out all the jets and the bowls and installed the new main jets...

I have a pilot jet question ----
On the rear right carb.. The Pilot Jet has a hole in where the D-socket goes which leads to an orifice just beyond the treads.. Anybody have any info on this and why that cylinder is different than the rest???
Another question - Under the above pilot jet, under the spring was a very small o-ring, but when I did the last pilot jet, it did not have an o-ring.. Are all of them supposed to have o-rings, or just that one?? Come on.. Someone help me out here!!!

I was able to adjust all my pilots to 2 3/4 turns out (one was at about 3/4 of a turn).

I also drilled another (making two total) hole in the back end of my exhaust.

The result of my work eliminated most of my hesitation and greatly increased my mid-range power.. Unsure of any MPG effect yet..

Another Question.. All of my Intake valves have quite a bit of carbon build up on them.. I use good gas and SeaFoam from time to time and was surprised at the amount accumulated. Should there be any concern here???

This is for Terry.. I finally did the Gas tank breather hole mod... There is actually a maze of metal on the front side of the filler hole, so I drilled one hole to the right of center to not effect the purposes of the maze (whatever that is, probably to prevent slosh into the vent tube). I haven't tried filling the tank yet..





[attachment deleted by admin]
Title: Re: 2000 Magna - carb removal
Post by: TLRam1 on May 11, 2010, 11:59:05 PM
Hoot,

O-Rings go on each pilot screw, you are missing 3. You should have a washer than an O-Ring so the spring tension is on the washer, not the O-Ring.

I have been too busy to work on anything, several bikes are in pieces in the garage. One day I hope to have time and get back to the bikes.

The vent tube I think has a splash guard in place so maybe you felt that. I was thinking of doing the hole on the Side of the neck not in the front but either should be fine. Waiting for the the fill-up now...What size hole did you drill?

Hard to tell how much carbon you have, if it is a concern you might run RXP through your system, never used the stuff but read lots of good things about others who have. No one I knew so credibility I can't confirm. In cars we use to poor transmission fluid down the carb to remove carbon also used water (which is not recommended., water does not compress, you can bend a rod).

The hole I am not familiar with and not sure I understand what you are referring to yet so maybe someone else can chime in.

and what is the foil for, are you cooking your carbs.  :P
Title: Re: 2000 Magna - carb removal
Post by: roboto65 on May 12, 2010, 06:28:24 AM
Check up in the hole should be an Oring there. I would like to see a pic of this hole or orifice by the pilot jet !!!
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 07:56:01 AM
Quote from: roboto65 on May 12, 2010, 06:28:24 AM
Check up in the hole should be an Oring there. I would like to see a pic of this hole or orifice by the pilot jet !!!
The Hole is in the middle of the "D" and leads to a horizontal rectangular orifice just below the threads.. it is a very small hole, but a hole none the less..

It sounds like I should at least have o-rings in all of the pilot jet holes under the springs, when Honda cleaned my carbs, they must of lost it..
I wonder if you can just order those parts??? A couple of my "D"'s are pretty messed up, I wonder if there are Pilot "kits" with the springs and o-rings etc... 
Title: Re: 2000 Magna - carb removal
Post by: roboto65 on May 12, 2010, 08:49:22 AM
So there is a hole in the needle it's self if so I HAVE never seen any holes in the pilot screws sure would like a pic of that !!!
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 09:01:52 AM
Quote from: roboto65 on May 12, 2010, 08:49:22 AM
So there is a hole in the needle it's self if so I HAVE never seen any holes in the pilot screws sure would like a pic of that !!!

I can see all the other pilot screws, but since it is the right rear, there are coolant hoses in the way of that one..
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 09:31:58 AM
Anybody know where I can get a Carb kit that would include the little o-rings and flat washers for the Pilots??
IF I could find a pilot kit with all the components I'd probably go that direction since I have some messed up "D"s
Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 12, 2010, 09:54:50 AM
Just your favorite on-line Honda parts house.  I had to replace one needle a couple years ago as the metal "ring" around the D-head had gotten un-rounded and the D-socket wouldn't bite on it after it was lightly seated.  Ended up having to drill the needle head and EZ-out it.  If I recall correctly, the spring, washer, and o-ring came with it.

BTW, I dremelled a slot into the needle head such that a standard screwdriver head could be used to turn it.  Also left the D shape intact so that I can adjust the needles with either the D-socket or a standard screw bit.

As for the carbon, might try to rig up something to draw Seafoam into the running engine, like you would do for a car engine.  Not sure where the best vacuum port for that would be,,, since the engine doesn't want to run without the airbox attached, i.e., can't pour it into the carb throats.  Maybe the carb sync port(s).....  Drill a hole into the carb boots  :lol:
Title: Re: 2000 Magna - carb removal
Post by: LIMagna on May 12, 2010, 10:44:51 AM
It looks like the pilot screw set contains all the parts you need. It's listed as part # 16016-MAS-670 online.  The o-ring is also part of Gasket Set A, which includes many similar parts including the o-rings on the float bowl drain screws and the float bowl gaskets.  The screw sets appear to be considerably cheaper though so unless you also need to replace the float bowl gaskets, it's probably not the way to go. 
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 11:04:18 AM
Quote from: LIMagna on May 12, 2010, 10:44:51 AM
It looks like the pilot screw set contains all the parts you need. It's listed as part # 16016-MAS-670 online.  The o-ring is also part of Gasket Set A, which includes many similar parts including the o-rings on the float bowl drain screws and the float bowl gaskets.  The screw sets appear to be considerably cheaper though so unless you also need to replace the float bowl gaskets, it's probably not the way to go. 

Thanx for the info... But I have a question...

IF I'm looking at this (http://www.cheapcycleparts.com/model_years/656-honda-1994-cbr954rr-CBR900RR/assemblies/10616) correctly (and I may not be) it looks like the kit comes with everything but the o-ring, it looks like you have to buy the gasket kit to get that part..

Please tell me that I'm wrong!!! So I'd have to buy
4 - 16016-MAS-670 Pilot Screw Set
AND
4 - 16010-MW0-600 - Gasket set A

Correct??
Title: Re: 2000 Magna - carb removal
Post by: LIMagna on May 12, 2010, 11:14:41 AM
I would think that the o-ring comes with both kits but I think it best to check with a parts dealer to confirm that.  The online image shows a box around the whole thing (o-ring included) for the screw set and then calls out the o-ring as being part of Gasket Set A.  I would think the box would not include that part if it were only available as part of the gasket set.  Of course, I could be wrong.  :?
Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 12, 2010, 12:31:11 PM
I believe, as I said above, that the o-ring comes with the needle set.  Unfortunately, with my memory I cannot give you a 100%, but if it were my bike, I would only be ordering the needle part number, not the gasket set.  Not sure if that means anything, but it is what it is.

You've been running without 'em for quite some time, so worst case, if you order just the needles, and then they don't come with the o-rings, you're just out another 1.5-2 weeks waiting for the gasket set.  But you're still riding regardless!

Wonder if a hardware store nearby might have an o-ring small enough to be used?  You should be able to shut off the gas, drain the bowl, and pull the one o-ring you have to see if you can find a comparable.  Just an idea...

Might also call/stop by a cycle shop or two to see if they have any that can be used.
Title: Re: 2000 Magna - carb removal
Post by: LIMagna on May 12, 2010, 12:38:07 PM
Just a thought ... but are you certain the o-rings didn't just stick inside the holes?  I think I read somewhere that if you remove the mixture screws you need to check to make sure the o-ring comes out with them. 
Title: Re: 2000 Magna - carb removal
Post by: TLRam1 on May 12, 2010, 12:44:31 PM
Quote from: LIMagna on May 12, 2010, 12:38:07 PM
Just a thought ... but are you certain the o-rings didn't just stick inside the holes?  I think I read somewhere that if you remove the mixture screws you need to check to make sure the o-ring comes out with them. 

That can happen and has with me on other bikes, don't forget you need the washer along with the O-Ring.
Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 12, 2010, 12:52:15 PM
Quote from: TLRam1 on May 12, 2010, 12:44:31 PM
Quote from: LIMagna on May 12, 2010, 12:38:07 PM
Just a thought ... but are you certain the o-rings didn't just stick inside the holes?  I think I read somewhere that if you remove the mixture screws you need to check to make sure the o-ring comes out with them. 

That can happen and has with me on other bikes, don't forget you need the washer along with the O-Ring.

Ahh yes, that has happened to me on the Magna.  Almost lost one, as they all stuck, then when I shot carb cleaner through that bore, it came shooting out.  Forgot about that, figured if you found one though, you checked the bores for the others too.
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 12:58:41 PM
I know I'm missing a washer on one and both on another.. Unsure about the other two carbs..
Title: Re: 2000 Magna - carb removal
Post by: TLRam1 on May 12, 2010, 07:56:23 PM
Quote from: TLRam1 on May 11, 2010, 11:59:05 PM
Hoot,

What size hole did you drill?


Enough with your carbs, are you ever going to answer this question?  :P
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 12, 2010, 09:33:52 PM
Quote from: TLRam1 on May 12, 2010, 07:56:23 PM
Enough with your carbs, are you ever going to answer this question?  :P
5/16ths and it works great!!! I filled up today, and within a couple of squeezes I was full and done..

I drilled a pilot hole 1st..

I also put a couple of Strong Magnets in the tank to catch most of the shavings..
Title: Re: 2000 Magna - carb removal
Post by: TLRam1 on May 12, 2010, 11:00:28 PM
Quote from: hootmon on May 12, 2010, 09:33:52 PM
Quote from: TLRam1 on May 12, 2010, 07:56:23 PM
Enough with your carbs, are you ever going to answer this question?  :P

I also put a couple of Strong Magnets in the tank to catch most of the shavings..


Elaborate, how did you position the magnets? Did you empty the tank of all gas, rinse or what's your procedure?
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 13, 2010, 06:59:19 AM
Quote from: TLRam1 on May 12, 2010, 11:00:28 PM

Elaborate, how did you position the magnets? Did you empty the tank of all gas, rinse or what's your procedure?
Man.. You are just full of questions...

Yes I emptied the tank of all the gas.. I did not rinse it, but I did use a fan to evacuate all the fumes.. I just used the nose test, When the fumes smell got light enough for my comfort, I went for it. I figured there was little chance of an actual spark being produced.

I have two 1"x2" bar magnets (approx) that are pretty strong.
I just took some long needle nose pliers and slipped them onto the bottom of the tank through the gas cap hole.

I felt around under the lip and found out where pieces of the maze were and selected my spot for one hole (my original plan was for two smaller holes).
I center punched
I drilled a pilot hole
I drilled the main hole ( I actually think the hole could be a little smaller, but I'm happy with the results so far)
I used Long nose pliers to remove the bar magnets
I used a telescoping magnet and wanded it around inside the tank as best as I could
I had taken the fuel pet cock and filter out, just to wash out the filter and note it's condition, and to get all the gas out. I re-inserted those back in the tank
Mounted the tank back on the bike - connecting the hoses and installing Allen screw
Filled with gas
Turned on the petcock
cranked engine to create vacuum on the shut off valve
updated the forum with pictures
Filled bike up - was happy with the result
answered question about hole size
Answered more questions about procedures..

I think that brings us pretty close to up to date..

Title: Re: 2000 Magna - carb removal
Post by: Lurkin on May 13, 2010, 09:00:25 AM
What kind of drill did you use, and were you using a workbench?

        :lol:
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 13, 2010, 01:14:17 PM
Quote from: Lurkin on May 13, 2010, 09:00:25 AM
What kind of drill did you use, and were you using a workbench?

        :lol:
I used a DeWalt 18V drill motor and Titanium coated HSS drill bits..
No I did not use a workbench, I used a big box my wife's used Corbin Seat came in..

Title: Re: 2000 Magna - carb removal
Post by: tmds3 on May 13, 2010, 02:45:11 PM
Quote from: hootmon on May 13, 2010, 01:14:17 PM
Quote from: Lurkin on May 13, 2010, 09:00:25 AM
What kind of drill did you use, and were you using a workbench?

        :lol:
I used a DeWalt 18V drill motor and Titanium coated HSS drill bits..
No I did not use a workbench, I used a big box my wife's used Corbin Seat came in..


Hoot-your workbench sounds like mine,pretty much what ever is the handiest at the time.
Title: Re: 2000 Magna - carb removal
Post by: Jerry G Turner on May 13, 2010, 04:22:30 PM
If you used a workbench was it painted or was it natural. How long was the drill bit and at what speed was the drill turning?
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 13, 2010, 04:30:33 PM
Quote from: Jerry G Turner on May 13, 2010, 04:22:30 PM
If you used a workbench was it painted or was it natural. How long was the drill bit and at what speed was the drill turning?
I already stated I didn't use a workbench, the Cardboard box was natural.
The drill bit was a standard size.
I did it the hard way.. I held the drill still and turned the tank really fast (Counter Clockwise of course)
Title: Re: 2000 Magna - carb removal
Post by: TLRam1 on May 13, 2010, 06:38:07 PM
Quote from: hootmon on May 13, 2010, 06:59:19 AM

Man.. You are just full of questions...



NOW WHO'S YOUR DADDY!  8)
Title: Re: 2000 Magna - carb removal
Post by: hootmon on May 13, 2010, 09:37:17 PM
Quote from: TLRam1 on May 13, 2010, 06:38:07 PM
NOW WHO'S YOUR DADDY!  8)
His Name is Hugh, but he is no longer with us.. He is busy riding on the golden highways in the sky!!!