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Dynojet washer yes or no. (Read 7 times)
w6k
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Dynojet washer yes or no.
01/10/07 at 16:34:39
 

    Is there supposed to be a washer under the main jet?. None was supplied with the dynojet kit but the carborater diagram shows a washer. Is it even important one way or the other?
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geo
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Re: Dynojet washer yes or no.
Reply #1 - 01/10/07 at 19:18:17
 
There is no washer here.
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Black 2002 Savage with SuperTrapp 13 discs, Dynajet Kit-DJ144, K&N drop-in, NGK-Iridium, Windscreen, Amsoil 10w-40, Metzeler ME880's
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justin_o_guy
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Re: Dynojet washer yes or no.
Reply #2 - 01/11/07 at 01:28:48
 
If I was guesing I would say it is important to not put one in there. The threads are pretty short as it is. A washer would mean that much less thread engagement. I have no idea how that would affect fuel delivery.
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KenGLong
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Re: Dynojet washer yes or no.
Reply #3 - 01/11/07 at 04:10:28
 
Mine has a washer in it.

Ken
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justin_o_guy
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Re: Dynojet washer yes or no.
Reply #4 - 01/11/07 at 06:06:53
 
I sit really thin? I just got a couple of jets & seems the threads are only about 1/8th long. I could go look, but it's cold in the garage,, Why is it just about the time I start thinking the things I am planning on doing will be Ohh soo simple, someone posts something that gets me to wondering?
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KenGLong
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Re: Dynojet washer yes or no.
Reply #5 - 01/11/07 at 08:12:33
 
It's fairly thick. Looks more like a spacer than a washer. It's the exact same diameter as the head of the jet and is brass.
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vroom1776
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Re: Dynojet washer yes or no.
Reply #6 - 01/11/07 at 08:36:16
 
with mikuni jets, you definitely have to have that washer.  with DJ jets?  I dont know.  measure the length diff between the seating part and the noozle on both of the mikuni and DJ jets.  that'll be your answer
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KenGLong
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Re: Dynojet washer yes or no.
Reply #7 - 01/11/07 at 18:49:06
 
Here's a pic of the main jet with its washer and the pilot jet from my carb.

http://home.comcast.net/~kenglong/savagecarb/SavageCarb004.jpg

Ken
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justin_o_guy
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Re: Dynojet washer yes or no.
Reply #8 - 01/11/07 at 21:31:11
 
What if ya don't have that washer with Mikuni jets? I ask because I have rejetted & I seriously don't remember a washer. If I lost it, what kinda problem would I have? Aww , man I hope I didn't mess this up..
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geo
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Re: Dynojet washer yes or no.
Reply #9 - 01/11/07 at 22:03:38
 
I had no washer under the main jet nut when I removed it. There was no washer provided in my DJ kit.
Don't confuse this washer talk with the one under the carb needle. Now, there was no washer under my 2002 carb main jet and I doubt there is one under any earlier model jets.

Check the carb exploded view in Clymer.
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Savage_Rob
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Re: Dynojet washer yes or no.
Reply #10 - 01/12/07 at 05:48:21
 
justin_o_guy wrote on 12/31/69 at 16:00:01:
What if ya don't have that washer with Mikuni jets? I ask because I have rejetted & I seriously don't remember a washer. If I lost it, what kinda problem would I have?

Read What have I done? by gazab44.
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1998|MAC muffler|ceramic coated header|K&N air filter|Amal Mk2 carb|Odyssey battery|iridium plug|NC windshield|Dunlop 491s|Superbrace|EBC brake rotor|12.5" Progressive shocks|Kuryakyn ISO grips
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justin_o_guy
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Re: Dynojet washer yes or no.
Reply #11 - 01/12/07 at 07:59:12
 
Well, mine runs, runs good, too, just gettin crummy mileage. I wish I could ride it calmly & smoothly for a day just to see how it is on the MPG, but I keep forgetting & goosing it.
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KenGLong
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Re: Dynojet washer yes or no.
Reply #12 - 01/12/07 at 10:02:25
 
Hmm. Some have a washer and some don't. Assuming the needle would still work either way without falling to the side, this throws another variable into the mix when doing a carb rejet. If the needle still works, then the carb would tend to run richer with no washer under the main jet because the needle would sit higher in the jet allowing more fuel to pass.

Does anyone know for sure if the needle will stay in place if the washer were removed from under a Mikuni jet? Would it lift all the way out at full throttle and want to swing out and wedge itself full open?

Wow.

Ken


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justin_o_guy
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Re: Dynojet washer yes or no.
Reply #13 - 01/12/07 at 12:01:23
 
Yikes, that could be inconvenient. Good thing there's a kill switch. Still, that could create a real"pucker" moment.
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KenGLong
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Re: Dynojet washer yes or no.
Reply #14 - 01/12/07 at 12:43:13
 
I should check before I talk about things I don't know about. The diagram at ronayers.com shows this setup to be upside down from what I thought it was. (I was envisioning the needles and jets in a Rochester Quad.)

If anything, removing the washer would make it leaner. Assuming all else the same.

I should be more knowledgeable about this in a few days after I completely disassemble, clean and reassemble my carb.

Ken
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