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Forum: 1986 - 2007 Ninja 250R Tech Talk May 28th, 2019, 01:03 AM
Replies: 55
Views: 7,078
Posted By Robb235
And this bike is SOLD! :dancecool:

And this bike is SOLD! :dancecool:
Forum: 1986 - 2007 Ninja 250R Tech Talk May 9th, 2019, 03:06 AM
Replies: 55
Views: 7,078
Posted By Robb235
Bingo! That's exactly what's happening.

Bingo! That's exactly what's happening.
Forum: 1986 - 2007 Ninja 250R Tech Talk May 6th, 2019, 07:51 PM
Replies: 55
Views: 7,078
Posted By Robb235
Finally figured it out. It was a spark issue....

Finally figured it out. It was a spark issue. Took the left plug out and put it on top of the engine. It would fire intermittently, and then not at all. Tested a new spark plug and it fired every...
Forum: 1986 - 2007 Ninja 250R Tech Talk May 5th, 2019, 01:50 PM
Replies: 55
Views: 7,078
Posted By Robb235
So putting the new diaphragm onto the slide was...

So putting the new diaphragm onto the slide was easier than I expected. Put the carb back together and the problem persists.

What's happening is only the right cylinder is firing. Figured this out...
Forum: 1986 - 2007 Ninja 250R Tech Talk May 2nd, 2019, 12:02 PM
Replies: 55
Views: 7,078
Posted By Robb235
Never had an issue with the Mikuni carbs coming...

Never had an issue with the Mikuni carbs coming into contact with carb cleaner. Keihin must use a lesser grade of rubber or something? And it only affected one diaphragm and not the other?
Forum: 1986 - 2007 Ninja 250R Tech Talk May 2nd, 2019, 10:39 AM
Replies: 55
Views: 7,078
Posted By Robb235
Just ordered it. We'll see how it goes. On...

Just ordered it. We'll see how it goes.

On another note, when I opened the tops of the carbs, the right one was torn, and the left one was shaped like a flower. Would not fit back into its...
Forum: 1986 - 2007 Ninja 250R Tech Talk May 2nd, 2019, 08:34 AM
Replies: 55
Views: 7,078
Posted By Robb235
Got a link to his thread by chance? I tried a few...

Got a link to his thread by chance? I tried a few search terms, but either I got a zillion results, or didn't find that particular thread.
Forum: 1986 - 2007 Ninja 250R Tech Talk May 2nd, 2019, 08:25 AM
Replies: 55
Views: 7,078
Posted By Robb235
Gotcha, not surprised. Am I able to replace...

Gotcha, not surprised.

Am I able to replace the rubber diaphragm and without replacing the slide? Or is it one piece?

I see this ebay link here has the rubber but no slide for $35. Is it...
Forum: 1986 - 2007 Ninja 250R Tech Talk May 2nd, 2019, 07:25 AM
Replies: 55
Views: 7,078
Posted By Robb235
I'm looking for a replacement diaphragm locally. ...

I'm looking for a replacement diaphragm locally.

Harley-Davidson's use CV 40mm Keihin carbs. Does anyone know if those diaphragms fit the CVK 30mm? None of the local Kawasaki dealers have the...
Forum: 1986 - 2007 Ninja 250R Tech Talk May 1st, 2019, 08:30 PM
Replies: 55
Views: 7,078
Posted By Robb235
Think I found my problem.

Think I found my problem.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 30th, 2019, 08:22 PM
Replies: 55
Views: 7,078
Posted By Robb235
No, I don't have it figured out. Like I said...

No, I don't have it figured out. Like I said before, carburetors are archaic and crude, and have no business on a street bike manufactured in 2007.

Now my problem is in the high speed fuel...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 23rd, 2019, 04:35 PM
Replies: 55
Views: 7,078
Posted By Robb235
What's so special about these carbs that only the...

What's so special about these carbs that only the most seasoned of carb gurus can rebuild these? I've gathered that ducatiman is the respected carb guy in these parts, but can the average home...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 22nd, 2019, 06:23 AM
Replies: 55
Views: 7,078
Posted By Robb235
You don't see MotoGP, F1, or any any other top...

You don't see MotoGP, F1, or any any other top racing leagues running carburetors. They aren't bound by any emissions rules that I am aware of. Even NASCAR who is slow to adapt new technology has...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 21st, 2019, 07:11 PM
Replies: 55
Views: 7,078
Posted By Robb235
In the grand scheme of things, my opinion is that...

In the grand scheme of things, my opinion is that fuel injection is overall superior to carburetors in terms of reliability and performance. There's a reason auto manufacturers use FI and not carbs...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 20th, 2019, 08:15 PM
Replies: 55
Views: 7,078
Posted By Robb235
Yeah, I’m not all that familiar with carbs. Much...

Yeah, I’m not all that familiar with carbs. Much more familiar with fuel injected applications. My only prior experience has been with the Mikuni carbs on my Yamaha jetboat, which are the float-less...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 20th, 2019, 05:03 PM
Replies: 55
Views: 7,078
Posted By Robb235
Also, what size are these CVK carbs? Between...

Also, what size are these CVK carbs?

Between these Keihins on this bike, and the two sets of triple Mikuni carbs on my boat, I’m about sick of carburetors.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 20th, 2019, 04:06 PM
Replies: 55
Views: 7,078
Posted By Robb235
I didn’t mess with the floats when I cleaned the...

I didn’t mess with the floats when I cleaned the carbs. Just shot carb cleaner through the passages and cleaned (or replaced) the jets.

What are the float valves? Is that the needle valve?
Forum: 1986 - 2007 Ninja 250R Tech Talk April 20th, 2019, 01:14 PM
Replies: 55
Views: 7,078
Posted By Robb235
This carb is going to be the death of me. I...

This carb is going to be the death of me.

I couldn’t clear the second pilot jet, so I just bought new ones.

Now when I put the carbs on and crank the bike, carb keeps leaking gas. One...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 15th, 2019, 06:09 PM
Replies: 55
Views: 7,078
Posted By Robb235
I don't play guitar so I have no idea what you...

I don't play guitar so I have no idea what you guys are talking about lol
Forum: 1986 - 2007 Ninja 250R Tech Talk April 14th, 2019, 07:10 PM
Replies: 55
Views: 7,078
Posted By Robb235
I Think My Pilot Jets Are Plugged

Got a 2007 250-EX that sat for a couple years. Between having kids and several moves, it just didn't get ridden. I have replaced the gas with fresh gas and added Seafoam to the tank.

It will only...
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