the Carburetor Chronicles - Page 3 - Ex-500.com - The home of the Kawasaki EX500 / Ninja 500R
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post #51 of 58 (permalink) Old 12-5-2019, 11:32 PM
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Originally Posted by ducatiman View Post
I'll PM in a few

looking again, these are ancient vintage, pre CV. Look familiar to anyone?

Edit- I believe they are from snowmobile application....unknown vintage, brand and model.
I ain't never seen none like that before. No slides at all that I can see, just one butterfly.

EDIT: Quick research shows it's a Mikuni B series; snowmobiles, yes, and pwc.

Last edited by K-woppa; 12-5-2019 at 11:36 PM.
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post #52 of 58 (permalink) Old 12-12-2019, 9:08 AM Thread Starter
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a set of too fiddies done (were gooey, evidence of intense leak) and returned to owner, another set of fi' hunners appears. So far a consistent December. Not complaining, mind you, but surprised. An early taste of a busy '20 season perhaps?
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File Type: jpg gooey250.JPG (105.6 KB, 5 views)
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Last edited by ducatiman; 12-12-2019 at 9:23 AM.
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post #53 of 58 (permalink) Old 12-22-2019, 9:27 PM Thread Starter
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a set of too, too fiddies knocked off today, goin' back home. These things came out nice.
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File Type: jpg cliss4.jpg (89.4 KB, 7 views)
File Type: jpg cliss5.jpg (93.4 KB, 6 views)
File Type: jpg cliss6.jpg (87.9 KB, 6 views)
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post #54 of 58 (permalink) Old 12-27-2019, 11:15 PM Thread Starter
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likely the last of '19...another set of 250's just about done. Nice inside and out (note brass)

Neglected to mention, based on owners' "always running rich" comment, I found hogged out pilot jets.... .002" over to be precise, from a stock 38 to a hogged equivalent of 42....2 sizes up. Salvage pilots from my stock now installed.

Otherwise I've reached a consistent standard threshold these days, I think.
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File Type: jpg fix4.jpg (89.9 KB, 10 views)
File Type: jpg fix1.jpg (126.7 KB, 8 views)
File Type: jpg fix2.jpg (101.8 KB, 8 views)
File Type: jpg fix3.jpg (87.8 KB, 7 views)
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Last edited by ducatiman; 12-28-2019 at 8:23 PM.
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post #55 of 58 (permalink) Old 1-23-2020, 6:30 PM Thread Starter
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Too fiddies in the house now...the 1st set of '20. Off we go!

And finished today.
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File Type: jpg jc250-3.jpg (67.9 KB, 2 views)
File Type: jpg jc250-4.jpg (84.4 KB, 2 views)
File Type: jpg jc250-5.jpg (61.8 KB, 2 views)
File Type: jpg jc250-9.jpg (113.2 KB, 2 views)

“Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba....” quote Hunter S Thompson

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Last edited by ducatiman; 1-24-2020 at 6:31 PM.
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post #56 of 58 (permalink) Old 1-24-2020, 7:02 PM Thread Starter
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We chose to review the 250 owners petcock along with doing the carbs. As problematic on the 250 as the 500.

Some ultrasonic, further cleaning, a new diaphragm main seal oring, looks like new and testing fine.
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File Type: jpg jc250-11.jpg (94.8 KB, 8 views)

“Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba....” quote Hunter S Thompson

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post #57 of 58 (permalink) Old 2-13-2020, 4:22 PM Thread Starter
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another set o 2 fiddies, will be fine runners
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File Type: jpg cal4.jpg (115.4 KB, 3 views)
File Type: jpg cal5.jpg (115.3 KB, 3 views)
File Type: jpg cal9.jpg (133.9 KB, 4 views)
File Type: jpg cal15.jpg (114.4 KB, 3 views)

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post #58 of 58 (permalink) Old Today, 9:58 AM Thread Starter
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Owner report:

"Holy balls I just put these back on my bike....somewhere along it's life my 09 250 lost its R, and @ducatiman found it and gave it back. Its got a growl I haven't heard since its first couple of thousand miles, and after adjusting the pilots it's nimbler than ever."

“Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba....” quote Hunter S Thompson

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