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Forum: 1986 - 2007 Ninja 250R Tech Talk Yesterday, 05:32 PM
Replies: 387
Views: 67,174
Posted By ducatiman
a 50 mile ride on my normal North Shore route,...

a 50 mile ride on my normal North Shore route, upon returning home changed oil and filter on my Honda. So 1 down....2 to go and I'll be up to date with maintenance procedures on my own motorbikes!
Forum: 1986 - 2007 Ninja 250R Tech Talk Yesterday, 03:57 PM
Replies: 12
Views: 218
Posted By ducatiman
S...T...R....E....T....C....H it..... both off...

S...T...R....E....T....C....H it..... both off and on.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 13th, 2024, 01:11 PM
Replies: 12
Views: 218
Posted By ducatiman
"could you elaborate on why you need an air...

"could you elaborate on why you need an air compressor and soda blasting vs just a can and some carb cleaner? I'm assuming being thorough and such."

Correct, with another before/after pic to prove...
Forum: 2008 - 2012 Ninja 250R Tech Talk April 12th, 2024, 09:51 AM
Replies: 10
Views: 171
Posted By ducatiman
assure that EVERY circuit within Triple Jims link...

assure that EVERY circuit within Triple Jims link is, in fact, totally clear.
If its above your expertise....PM me.
Forum: 2008 - 2012 Ninja 250R Tech Talk April 12th, 2024, 06:01 AM
Replies: 10
Views: 171
Posted By ducatiman
BIKERB previously posted: "I cleaned the carb...

BIKERB previously posted: "I cleaned the carb yesterday and it has the same symptoms as it did before I cleaned it (there wasn’t much to clean though"

I'll submit the carb idle circuits (at...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 11th, 2024, 11:33 AM
Replies: 387
Views: 67,174
Posted By ducatiman
finished the Ducati/Mikuni's posted about...

finished the Ducati/Mikuni's posted about earlier. Pic attached.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 11th, 2024, 05:39 AM
Replies: 12
Views: 218
Posted By ducatiman
the ability to turn this into that is critical

the ability to turn this into that is critical
Forum: 1986 - 2007 Ninja 250R Tech Talk April 11th, 2024, 05:24 AM
Replies: 387
Views: 67,174
Posted By ducatiman
in that case, why mess with it?

in that case, why mess with it?
Forum: 1986 - 2007 Ninja 250R Tech Talk April 10th, 2024, 05:17 PM
Replies: 387
Views: 67,174
Posted By ducatiman
upsizing pilot jets very likely requires...

upsizing pilot jets very likely requires re-adjustment of pilot screws.Depending on how the bike initially runs....may or may not be worth it.
Is yours running ok or not?
Forum: 1986 - 2007 Ninja 250R Tech Talk April 10th, 2024, 05:04 PM
Replies: 12
Views: 218
Posted By ducatiman
welcome Will. to be able to do carbs...a few...

welcome Will.

to be able to do carbs...a few tools necessary.....
you must have access to powerful compressed air, not from a can, but from an actual compressor.
An ultrasonic machine also...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 10th, 2024, 07:02 AM
Replies: 387
Views: 67,174
Posted By ducatiman
TY Mav as always....ready, willing and able...

TY Mav

as always....ready, willing and able but no rush, send in your time
Forum: 1986 - 2007 Ninja 250R Tech Talk April 9th, 2024, 06:30 PM
Replies: 387
Views: 67,174
Posted By ducatiman
Thanks for your comment, Eric but hopefully...

Thanks for your comment, Eric but hopefully you've got it all under control.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 9th, 2024, 05:01 PM
Replies: 387
Views: 67,174
Posted By ducatiman
a set of Ducati/Mikuni CV carbs here for...

a set of Ducati/Mikuni CV carbs here for refurb.....all the usual, totally clogged pilot jets and 1 main jet. All ports/jets/bodies required and received my attention. See pics. Tomorrow will...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 6th, 2024, 09:04 AM
Replies: 387
Views: 67,174
Posted By ducatiman
#114 completed this mornin'

#114 completed this mornin'
Forum: 1986 - 2007 Ninja 250R Tech Talk April 6th, 2024, 06:10 AM
Replies: 3
Views: 184
Posted By ducatiman
Amazing how many EX's are denied their right to...

Amazing how many EX's are denied their right to timely valve checks. Many owners simply blow off this critical function as a "meh" ...... eventually resulting in many bikes sitting dormant out back...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 3rd, 2024, 12:04 PM
Replies: 387
Views: 67,174
Posted By ducatiman
currently rebuilding a trade-in set of EX500...

currently rebuilding a trade-in set of EX500 carbs, to be #114 and intended to be sold. A pic or 2 will be posted here when done in 24-48 hours.
Forum: 1986 - 2007 Ninja 250R Tech Talk March 29th, 2024, 07:25 AM
Replies: 3
Views: 166
Posted By ducatiman
AFAIK...your carb lower choke inlet should look...

AFAIK...your carb lower choke inlet should look like this.........see pic

Either someone was in there prior OR these are not stock Keihin carbs (?)

IF you discover Far East copy carbs on...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 28th, 2024, 11:21 AM
Replies: 3
Views: 184
Posted By ducatiman
as new OEM petcock retails at $120 plus...

as new OEM petcock retails at $120 plus freight..... I'll rebuild (and wet test) yours for $65 shipped back to you. Includes all labor, all consumable parts and return freight back to you!
Forum: 1986 - 2007 Ninja 250R Tech Talk March 27th, 2024, 04:17 PM
Replies: 3
Views: 184
Posted By ducatiman
Correct, brass fitting at top/front of left hand...

Correct, brass fitting at top/front of left hand carb. Vacuum is constant from there. Do NOT USE any other fitting!


What year is your 250?
Forum: 1986 - 2007 Ninja 250R Tech Talk March 25th, 2024, 02:26 PM
Replies: 3
Views: 201
Posted By ducatiman
IMHO "kit" parts are totally not necessary....

IMHO "kit" parts are totally not necessary. Original jetting components can be cleaned/reused (related before/after pics provided)
Forum: 1986 - 2007 Ninja 250R Tech Talk March 23rd, 2024, 11:24 AM
Replies: 387
Views: 67,174
Posted By ducatiman
and a couple of photos of completed carbs, ready...

and a couple of photos of completed carbs, ready to return to owner
Forum: 1986 - 2007 Ninja 250R Tech Talk March 23rd, 2024, 11:22 AM
Replies: 387
Views: 67,174
Posted By ducatiman
On left the original float needle (from a Far...

On left the original float needle (from a Far East carb kit used previously) and my currently installed needle on right

Note the Far East version leaked from RH carb
Mine are holding reliably in...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 22nd, 2024, 03:18 PM
Replies: 387
Views: 67,174
Posted By ducatiman
nearing completion, currently wet testing, both...

nearing completion, currently wet testing, both carbs perfectly stable, ZERO leakage, internally or externally. Wrapping it up tomorrow.

I'll surmise the leakage was due to dirty float seats,...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 22nd, 2024, 12:51 PM
Replies: 387
Views: 67,174
Posted By ducatiman
gut shot.....a lil' bit better, perhaps?

gut shot.....a lil' bit better, perhaps?
Forum: 1986 - 2007 Ninja 250R Tech Talk March 22nd, 2024, 11:42 AM
Replies: 387
Views: 67,174
Posted By ducatiman
supposedly "rebuilt"....I'll take exception to...

supposedly "rebuilt"....I'll take exception to that. Immediate wet test cancelled/cleaning to take precedence.

Note EPA caps never removed to enable both cleaning of the involved pilot port(s) ...
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