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Forum: !%@*#$%!)@#&!%@ I crashed! July 19th, 2019, 06:56 AM
Replies: 32
Views: 338
Posted By jkv45
My son that rides the YZ250FX and SuMo CRF150R...

My son that rides the YZ250FX and SuMo CRF150R has had numerous knee surgeries and PT, and is using Ossur CTI Pro Sport braces on both knees.

He was at the SuMo track yesterday on the 150R, and...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 19th, 2019, 06:31 AM
Replies: 5
Views: 93
Posted By jkv45
That might be a tough one. Those are great...

That might be a tough one.

Those are great for frames with double down-tubes where the engine sump doesn't drop below the frame - like most Big Twins.

With the Ninja's frame type (lack of lower...
Forum: General Motorcycling Discussion July 19th, 2019, 06:21 AM
Replies: 15
Views: 200
Posted By jkv45
Chances are it's just about ready to snap. ...

Chances are it's just about ready to snap.

Sounds like a new cable should cure the problem.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 18th, 2019, 06:18 AM
Replies: 8
Views: 175
Posted By jkv45
Not low mileage, but not high either. Anyone...

Not low mileage, but not high either. Anyone familiar with the little Ninja will know that the engine is barely broken-in at 15K (assuming proper maintenance) and will run almost forever if...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 17th, 2019, 11:04 AM
Replies: 8
Views: 175
Posted By jkv45
Glad you weren't seriously hurt. Well, it is...

Glad you weren't seriously hurt.

Well, it is a "project", but it is worth something. CL is one option, as is the For Sale section here. We bought Ninjas from both places, the one from the forum...
Forum: General Motorcycling Discussion July 17th, 2019, 10:50 AM
Replies: 14
Views: 149
Posted By jkv45
Option 1 - green 300 - gets my vote. It...

Option 1 - green 300 - gets my vote.

It should feel like an "upgrade" coming off a PreGen, and you can use any extra cash for some nice tires, suspension, etc.

The new 400s are excellent in...
Forum: General Motorcycling Discussion July 16th, 2019, 01:40 PM
Replies: 15
Views: 200
Posted By jkv45
A battery that doesn't stay at 100% charged will...

A battery that doesn't stay at 100% charged will give you trouble, and may even cause odd running problems.

I wouldn't run a 20W-50 - no need for it in a water cooled engine. Heavy oil moves...
Forum: General Motorcycling Discussion July 16th, 2019, 06:33 AM
Replies: 15
Views: 200
Posted By jkv45
It also sounds like the clutch plates are...

It also sounds like the clutch plates are sticking. I had a Ninja that liked to do that as well. I would either rock it in gear before starting to break it loose or hold the front brake when I hit...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 15th, 2019, 06:30 AM
Replies: 3
Views: 79
Posted By jkv45
Here's another good video - zB4DsHV8SAQ ...

Here's another good video -

zB4DsHV8SAQ

Note the use of something in the chain/sprocket to apply tension and snug the adjusters before tightening the axle nut.

Locating the tightest spot...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 14th, 2019, 04:38 PM
Replies: 7
Views: 108
Posted By jkv45
Read through this section -...

Read through this section - https://faq.ninja250.org/wiki/How_do_I_adjust_the_valves%3F

You need to drain some coolant and remove the pipe as noted.
Forum: 2008 - 2012 Ninja 250R Tech Talk July 14th, 2019, 04:35 PM
Replies: 16
Views: 208
Posted By jkv45
Over-oiled the filter is my guess. Doesn't...

Over-oiled the filter is my guess.

Doesn't take much to create a problem. I've done it.
Forum: General Motorcycling Discussion July 14th, 2019, 04:34 PM
Replies: 19
Views: 149
Posted By jkv45
Does the tank look good inside? How old is the...

Does the tank look good inside? How old is the gas? Have you checked the inline fuel filter at the carb inlet? Did you drain the floatbowls and look at the condition of the gas?

Seems carb or...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 13th, 2019, 03:05 PM
Replies: 24
Views: 237
Posted By jkv45
Yup. Intake restriction...

Yup.

Intake restriction...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 13th, 2019, 03:02 PM
Replies: 16
Views: 208
Posted By jkv45
Did you oil the filter?

Did you oil the filter?
Forum: 2008 - 2012 Ninja 250R Tech Talk July 12th, 2019, 07:11 AM
Replies: 24
Views: 237
Posted By jkv45
Sounds like some type of intake restriction or...

Sounds like some type of intake restriction or carb slides not lifting correctly to me, but could be fuel-flow related also.

Were the carb diaphragms in good shape? Were the carbs clean inside? ...
Forum: The Ex-Ninjetters Lair July 8th, 2019, 08:49 AM
Replies: 35
Views: 1,970
Posted By jkv45
Looking to do his first SuMo trackday at the RA...

Looking to do his first SuMo trackday at the RA track shortly.

Had it out over the holiday with the dirt wheels on it, and he says it's not bad on the dirt.

He describes the engine as...
Forum: The Ex-Ninjetters Lair July 8th, 2019, 06:49 AM
Replies: 35
Views: 1,970
Posted By jkv45
Latest photos of the 150R with new wheels and...

Latest photos of the 150R with new wheels and Dunlop Moto3-spec slicks -

https://i.imgur.com/AcDd7So.jpg

https://i.imgur.com/68yZETL.jpg
Forum: !%@*#$%!)@#&!%@ I crashed! July 1st, 2019, 06:10 AM
Replies: 32
Views: 338
Posted By jkv45
Heal up quick. Dirt bikes can bite you hard. ...

Heal up quick. Dirt bikes can bite you hard.

It happens to the best of them! (Marquez, Biaggi, Rossi - to name a few)
Forum: Pictures June 30th, 2019, 01:20 PM
Replies: 24
Views: 592
Posted By jkv45
Electrical issues more likely then.

Electrical issues more likely then.
Forum: Pictures June 30th, 2019, 09:16 AM
Replies: 24
Views: 592
Posted By jkv45
What throttle position does it start at? ...

What throttle position does it start at?

Will it run fine at 1/2 throttle at lower RPMs?

Slides rise and fall smoothly?

Have you tested the battery voltage? Connections?

Have you removed...
Forum: 2008 - 2012 Ninja 250R Tech Talk June 30th, 2019, 06:30 AM
Replies: 18
Views: 336
Posted By jkv45
I'll post there. Post a link to the entire...

I'll post there.

Post a link to the entire thread, I can't find it.
Forum: 2008 - 2012 Ninja 250R Tech Talk June 29th, 2019, 09:23 AM
Replies: 18
Views: 336
Posted By jkv45
At what throttle opening is the problem...

At what throttle opening is the problem happening?

Narrow that down and it will be easier to correct if it's carb related.
Forum: 2008 - 2012 Ninja 250R Tech Talk June 28th, 2019, 05:51 AM
Replies: 18
Views: 336
Posted By jkv45
Did you try riding without the air filter? ...

Did you try riding without the air filter?

Those plugs are rich overall.

The carbs need to come off and be gone though most likely. Chances are the jetting is richer than optimum or adjustments...
Forum: 1986 - 2007 Ninja 250R Tech Talk June 26th, 2019, 06:09 AM
Replies: 25
Views: 395
Posted By jkv45
1) After about 5 years almost any tire has lost a...

1) After about 5 years almost any tire has lost a certain amount of traction, some even quicker. Cycle tires are more critical, so I use 5 years as a max. The amount of tread left doesn't matter.
...
Forum: 2008 - 2012 Ninja 250R Tech Talk June 26th, 2019, 06:01 AM
Replies: 18
Views: 336
Posted By jkv45
And that looks a lot better than stock! What...

And that looks a lot better than stock! What size Main Jet are you running?

People just don't believe it could be possible that it's jetted RICH from the factory, and always want to increase the...
Showing results 1 to 25 of 1000

 
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