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Forum: Pictures July 29th, 2021, 06:19 AM
Replies: 14
Views: 8,500
Posted By jkv45
Be careful of "Jet Kits". The jets can be way...

Be careful of "Jet Kits". The jets can be way out of spec, and way overboard.

It doesn't take much tuning to get it to run with pods, but it's not usually a great choice for the Ninja. Pods may...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 27th, 2021, 06:14 AM
Replies: 20
Views: 200
Posted By jkv45
Pretty sure he just mean't swapping the shorter...

Pretty sure he just mean't swapping the shorter fuel line for the longer fuel line to get a better position for the filter.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 25th, 2021, 06:12 AM
Replies: 5
Views: 72
Posted By jkv45
That would be a better solution.

That would be a better solution.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 24th, 2021, 08:15 PM
Replies: 5
Views: 72
Posted By jkv45
Most likely you will need to add a resistor to...

Most likely you will need to add a resistor to the ignition in order for it to start.

It will crank, but not start if it's not in place. Almost all the aftermarket ignition switches don't have it...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 21st, 2021, 09:35 AM
Replies: 9
Views: 126
Posted By jkv45
Sending them to ducatiman will end any concern...

Sending them to ducatiman will end any concern about carb issues for you.
Forum: 2008 - 2012 Ninja 250R Tech Talk July 21st, 2021, 07:24 AM
Replies: 9
Views: 126
Posted By jkv45
Start with your Idle Mixture Screws about 2.5...

Start with your Idle Mixture Screws about 2.5 turns out. That should get you close if everything else is right.

Set it precisely after a ride, when the engine is at operating temp.

The...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 19th, 2021, 06:09 AM
Replies: 32
Views: 3,932
Posted By jkv45
Since you already paid to have it fixed, I'd take...

Since you already paid to have it fixed, I'd take it back and tell them to fix it right. If they can't, they need to refund whatever they charged you for the carb work.

If you send it to...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 18th, 2021, 03:06 PM
Replies: 32
Views: 3,932
Posted By jkv45
Most shops probably don't have the right...

Most shops probably don't have the right equipment to do the job properly, even if the Tech is experienced.

Not many young Techs can completely disassemble, properly clean, reassemble, and adjust...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 18th, 2021, 12:47 PM
Replies: 32
Views: 3,932
Posted By jkv45
If they charged you to clean the carbs, they...

If they charged you to clean the carbs, they missed something, didn't clean it good, had no idea what they were doing, or ripped you off.

Either way, it should run when you get it back.

Don't...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 15th, 2021, 01:46 PM
Replies: 10
Views: 136
Posted By jkv45
^ What he said! Don't change out the oem...

^ What he said!

Don't change out the oem jets for ones in the kit unless there are major problems, even then I'd probably order oem jets. Resist any urge to go bigger on the jets - it's not...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 15th, 2021, 05:57 AM
Replies: 26
Views: 492
Posted By jkv45
I would say that's too much.

I would say that's too much.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 14th, 2021, 11:14 AM
Replies: 20
Views: 200
Posted By jkv45
I'm just not a fan of the aftermarket inline fuel...

I'm just not a fan of the aftermarket inline fuel filters on the Ninja.

If you look at the fuel line above your filter, you will see it's starting to buckle - which may restrict flow.

My...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 13th, 2021, 01:28 PM
Replies: 20
Views: 200
Posted By jkv45
This is it -...

This is it - https://faq.ninja250.org/wiki/File:Fuel_Filter_4.JPG
Forum: 1986 - 2007 Ninja 250R Tech Talk July 13th, 2021, 11:08 AM
Replies: 20
Views: 200
Posted By jkv45
A large inline filter can cause problems, and...

A large inline filter can cause problems, and create a low spot in the fuel line that interrupts flow.

The hose from the petcock to the carb isn't long enough for anything except a small...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 12th, 2021, 06:37 AM
Replies: 26
Views: 492
Posted By jkv45
One really common mistake (I've done it...) is to...

One really common mistake (I've done it...) is to over-oil the air filter, which will make it run very poorly (rich) at all RPMs.

If you have oiled the filters, I would try to remove any oil that...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 11th, 2021, 08:26 AM
Replies: 13
Views: 211
Posted By jkv45
If it isn't rain water, it has to be coolant. ...

If it isn't rain water, it has to be coolant. Check the level on the coolant overflow bottle.

As noted, it could also be gas. That would mean the petcock and the carb need attention. The...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 2nd, 2021, 01:22 PM
Replies: 26
Views: 492
Posted By jkv45
The Main Jet should not affect the mixture at...

The Main Jet should not affect the mixture at idle that much to make the plugs black. I would look closer at the Enrichener.

Still think you could go to a 108s. 105 is stock - and it is rich. ...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 2nd, 2021, 06:18 AM
Replies: 26
Views: 492
Posted By jkv45
I would start by getting a good battery and not...

I would start by getting a good battery and not using a "jump box". That alone can cause problems.

Are the slides rising and falling smoothly? Are the diaphragms good, without any buckling or...
Forum: 2008 - 2012 Ninja 250R Tech Talk June 29th, 2021, 06:08 AM
Replies: 12
Views: 469
Posted By jkv45
That explains a few things then... As (edit...

That explains a few things then...

As (edit - Ghostt) and Sergey have said - you most likely have enough gas sitting in the cylinder that the engine will not spin over.

That means you have 2...
Forum: The Ex-Ninjetters Lair June 26th, 2021, 09:19 AM
Replies: 3
Views: 249
Posted By jkv45
Congrats! My son, multiple Ninja 250...

Congrats!

My son, multiple Ninja 250 owner, rode a R3 a while ago and liked it quite a bit as well.

Check out Spears Racing. They seem to know their way around a R3 from what I've heard.
Forum: 1986 - 2007 Ninja 250R Tech Talk June 26th, 2021, 09:12 AM
Replies: 15
Views: 279
Posted By jkv45
You should remove the circular cover on the left...

You should remove the circular cover on the left engine case and use a ratchet/socket to turn the engine over.

That will tell you.

Pulling the plugs will make it easier to spin over, but you...
Forum: 2008 - 2012 Ninja 250R Tech Talk June 23rd, 2021, 06:34 AM
Replies: 12
Views: 469
Posted By jkv45
If you are getting 12.4V to the starter motor,...

If you are getting 12.4V to the starter motor, have jumped the solenoid, and confirmed the motor works - it should spin the engine over. It would seem the starter motor is not spinning/engaging when...
Forum: 1986 - 2007 Ninja 250R Tech Talk June 22nd, 2021, 06:12 AM
Replies: 13
Views: 303
Posted By jkv45
As others have stated, I don't think there is a...

As others have stated, I don't think there is a major problem. No reason to cut or torch the nut - it's just !#$%! tight.

You may need more that a normal 3/8" drive ratchet and a combination...
Forum: 1986 - 2007 Ninja 250R Tech Talk June 21st, 2021, 05:57 AM
Replies: 13
Views: 303
Posted By jkv45
It could be over-torqued or possibly stripped. ...

It could be over-torqued or possibly stripped.

You will need the proper tools.

Here's some info - https://faq.ninja250.org/wiki/Removing/replacing_the_rear_wheel

Axle nut loosening technique...
Forum: Pictures June 21st, 2021, 05:46 AM
Replies: 17
Views: 464
Posted By jkv45
I wouldn't say that, just no comments yet... ...

I wouldn't say that, just no comments yet...

Welcome. Surf around a bit, there's a lot of good info here. Keep us up to date on your modes.

Could be tricky getting it jetted perfectly, but...
Showing results 1 to 25 of 1000

 
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