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Forum: 1986 - 2007 Ninja 250R Tech Talk Yesterday, 09:56 AM
Replies: 37
Views: 496
Posted By DannoXYZ
Leaking vacuum line would just result in poor...

Leaking vacuum line would just result in poor petcock performance. And yes, it would mess up carb-metering as well.

Hmm, ok, so most likely clogged carbs, with petcock not far behind. Best to do...
Forum: New Members October 27th, 2020, 10:34 PM
Replies: 6
Views: 63
Posted By DannoXYZ
Greeting & Salutations Andy!!! :wave:

Greeting & Salutations Andy!!! :wave:
Forum: 1986 - 2007 Ninja 250R Tech Talk October 25th, 2020, 08:02 PM
Replies: 37
Views: 496
Posted By DannoXYZ
True, one or other may start acting up first, but...

True, one or other may start acting up first, but other has had similar neglect.

EDIT: I fat-fingered your post and accident hit thumbs-down! Sorry!!!
Forum: 1986 - 2007 Ninja 250R Tech Talk October 25th, 2020, 05:58 PM
Replies: 37
Views: 496
Posted By DannoXYZ
Yeah, cooling system design on these bikes are...

Yeah, cooling system design on these bikes are antiquated. Really need ThermoBob to update. Then it’ll warm up properly and actually stay at operating temps.
Forum: 1986 - 2007 Ninja 250R Tech Talk October 25th, 2020, 02:31 PM
Replies: 37
Views: 496
Posted By DannoXYZ
You might have more than one issue here. Even if...

You might have more than one issue here. Even if petcock has slow flow, from initial start, you should still have sufficient petrol-levels in float-bowls for at least a minute. So do this test:

-...
Forum: 1986 - 2007 Ninja 250R Tech Talk October 25th, 2020, 07:27 AM
Replies: 10
Views: 202
Posted By DannoXYZ
Sent you DM on bypassing clutch switch....

Sent you DM on bypassing clutch switch. Personally I would go with safer option of requiring bike to be in neutral to start.
Forum: Ninjettes At Speed October 24th, 2020, 09:26 PM
Replies: 13
Views: 235
Posted By DannoXYZ
Do you remember this session with Jeff’s...

Do you remember this session with Jeff’s entourage from Reno? I made sure to stay behind you whole time for good training footage. See if you spot anything useful for improvement.

KDbQKmaV8FE
Forum: Ninjettes At Speed October 24th, 2020, 11:29 AM
Replies: 13
Views: 235
Posted By DannoXYZ
Next time out, I’ll follow you around with...

Next time out, I’ll follow you around with camera. Really helpful for improving!
Forum: Ninjettes At Speed October 24th, 2020, 09:58 AM
Replies: 13
Views: 235
Posted By DannoXYZ
Here's Jordan doing 2:11 @ Thunderhill on Ninja...

Here's Jordan doing 2:11 @ Thunderhill on Ninja 250 (and our buddies Pao and Suoa). Notice he's full-throttle from exit of 14 with no let-off at 15. So straightaway actually starts at exit of 14....
Forum: 2008 - 2012 Ninja 250R Tech Talk October 23rd, 2020, 09:47 AM
Replies: 20
Views: 269
Posted By DannoXYZ
How many ohms did you measure? Post photo of how...

How many ohms did you measure? Post photo of how you measured and what meter display shows.

Did you charge new battery? For how long?
Forum: 2008 - 2012 Ninja 250R Tech Talk October 23rd, 2020, 09:45 AM
Replies: 20
Views: 269
Posted By DannoXYZ
On old style points-style analogue ignition, you...

On old style points-style analogue ignition, you can probably get by with 10v battery charge.

But with new style digital ignition like on Ninjette, ECU won't work on anything less than 12v.

I...
Forum: 2008 - 2012 Ninja 250R Tech Talk October 23rd, 2020, 08:29 AM
Replies: 2
Views: 54
Posted By DannoXYZ
White smoke is not good sign. What’s it smell...

White smoke is not good sign. What’s it smell like?

Do you have choke turned off after first couple minutes?

Do compression-test when you get chance.
Forum: New Members October 23rd, 2020, 08:28 AM
Replies: 4
Views: 68
Posted By DannoXYZ
Greetings and Salutations !!! :wave: This...

Greetings and Salutations !!! :wave:

This little bikes are so much fun!
Forum: 2008 - 2012 Ninja 250R Tech Talk October 22nd, 2020, 07:00 PM
Replies: 20
Views: 269
Posted By DannoXYZ
How many ohms did you measure? Post photo of how...

How many ohms did you measure? Post photo of how you measured and what meter display shows.

Did you charge new battery? For how long?
Forum: 2008 - 2012 Ninja 250R Tech Talk October 22nd, 2020, 05:34 PM
Replies: 20
Views: 269
Posted By DannoXYZ
Bad battery. Should not drop when key ON. Should...

Bad battery. Should not drop when key ON. Should stay at 13v.
Just because it's new doesn't mean it's good. Over 1/2 of stuff from auto-parts stores are bad right out of box and needs to be tested....
Forum: 1986 - 2007 Ninja 250R Tech Talk October 22nd, 2020, 05:14 PM
Replies: 5
Views: 124
Posted By DannoXYZ
Sounds like idle and/or pilot circuit is clogged....

Sounds like idle and/or pilot circuit is clogged. Needs thorough cleaning.
Forum: 2008 - 2012 Ninja 250R Tech Talk October 22nd, 2020, 02:09 PM
Replies: 20
Views: 269
Posted By DannoXYZ
Clutch switch only deals with starter circuit....

Clutch switch only deals with starter circuit. You need to measure and come up with some numbers for fast and efficient troubleshooting:

1. Key ON, put transmission in neutral. Does neutral light...
Forum: Ninjettes At Speed October 22nd, 2020, 08:20 AM
Replies: 13
Views: 235
Posted By DannoXYZ
Hook turns! That's term I was looking for! It...

Hook turns! That's term I was looking for! It always reminds of this drawing tool my dad had on his drafting table, the French Curve. Basically non-circular curve where tightest amount of turning is...
Forum: Ninjettes At Speed October 22nd, 2020, 08:17 AM
Replies: 13
Views: 235
Posted By DannoXYZ
Thanks! :thumbup:

Thanks! :thumbup:
Forum: Ninjettes At Speed October 21st, 2020, 05:42 PM
Replies: 13
Views: 235
Posted By DannoXYZ
No I got it . On big bikes, lower-gears can...

No I got it . On big bikes, lower-gears can generate more torque that can run you wide. Shifting up a gear gives you less torque at contact patch and more traction for cornering and turning...
Forum: 1986 - 2007 Ninja 250R Tech Talk October 21st, 2020, 05:23 PM
Replies: 10
Views: 202
Posted By DannoXYZ
Sorry I got mixed up about factory vs. your CR...

Sorry I got mixed up about factory vs. your CR carbs. Best to use wideband and datalog actual AFR. Then go from there. You can do it by feel, but it takes a lot longer and you end up leaving lots of...
Forum: Ninjettes At Speed October 21st, 2020, 10:11 AM
Replies: 13
Views: 235
Posted By DannoXYZ
You mentioned this "difficulty turning" before...

You mentioned this "difficulty turning" before and I'm wondering where it's coming from. Let's examine what that guy is saying and doing:

Which bike is he riding?
"i throw a short shift in" - so...
Forum: 1986 - 2007 Ninja 250R Tech Talk October 21st, 2020, 09:42 AM
Replies: 10
Views: 202
Posted By DannoXYZ
Bottom-line with power-generation is number of...

Bottom-line with power-generation is number of oxygen-molecules you can injest per intake-stroke. Then petrol is metered to match that oxygen-supply.

With pre-gens, it's extremely difficult to...
Forum: 2008 - 2012 Ninja 250R Tech Talk October 20th, 2020, 05:28 PM
Replies: 15
Views: 1,146
Posted By DannoXYZ
Well, on those other builds, I suspect there was...

Well, on those other builds, I suspect there was already damage by time stiffer valve-springs were installed. Also not using aftermarket programmable EFI system is major issue. Having 3D ignition-map...
Forum: New Members October 19th, 2020, 08:12 PM
Replies: 14
Views: 189
Posted By DannoXYZ
Oohh!! I get dibs on riding that track!!! :) ...

Oohh!! I get dibs on riding that track!!! :)
My goal is to ride every track in the World!!!
Will you have a fleet of Ninjettes for guests to ride?

Wow have times changed! I used to live in...
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