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Forum: 1986 - 2007 Ninja 250R Tech Talk Today, 06:04 AM
Replies: 4
Views: 49
Posted By jkv45
This section should have what you need -...

This section should have what you need - https://faq.ninja250.org/wiki/Brakes
Forum: 1986 - 2007 Ninja 250R Tech Talk Yesterday, 06:24 AM
Replies: 18
Views: 229
Posted By jkv45
Pull the valve cover and watch the cams as you...

Pull the valve cover and watch the cams as you rotate the crank.

I'm thinking you will see when the lobes are contacting the rockers and opening the valves it will get harder to rotate the engine...
Forum: General Motorcycling Discussion April 23rd, 2018, 07:23 AM
Replies: 54
Views: 742
Posted By jkv45
Not me, but my oldest boy on his first bike at...

Not me, but my oldest boy on his first bike at about age 4 -

https://i.imgur.com/3qOHazP.jpg?2

We still have it. He fired it up a while ago, just to smoke up the garage...

Here he is 17...
Forum: General Motorcycling Discussion April 23rd, 2018, 06:53 AM
Replies: 54
Views: 742
Posted By jkv45
Pretty sure that's referred to as a "Le Mans...

Pretty sure that's referred to as a "Le Mans Start".
Forum: 1986 - 2007 Ninja 250R Tech Talk April 21st, 2018, 07:49 PM
Replies: 47
Views: 587
Posted By jkv45
I'm still not following exactly how this could...

I'm still not following exactly how this could happen.

If the outside wheel bearings are in-place the axle should be running through the center of the wheel. And if the swingarm isn't bent...
...
Forum: General Motorcycling Discussion April 20th, 2018, 06:11 AM
Replies: 54
Views: 742
Posted By jkv45
Here's a picture of me back in the day on my...

Here's a picture of me back in the day on my Dream -

https://i.imgur.com/9qsCyFv.jpg?1

People tell me I looked just like Elvis...

Still have the bike -

https://i.imgur.com/M2VHXda.jpg?1
Forum: Ninjettes At Speed April 18th, 2018, 11:16 AM
Replies: 9
Views: 246
Posted By jkv45
Bridgestone Battlax R11 DOT Race Tire review

http://www.motorcycle.com/products/riding-new-bridgestone-battlax-r11-dot-race-tire
Forum: 2008 - 2012 Ninja 250R Tech Talk April 18th, 2018, 11:15 AM
Replies: 27
Views: 439
Posted By jkv45
Get the wheel up in the air and spin it and...

Get the wheel up in the air and spin it and listen for the sound.

Bearings are another possible cause.
Forum: Ninjettes At Speed April 16th, 2018, 11:51 AM
Replies: 13
Views: 213
Posted By jkv45
Congrats Cameron! Great job and some tight...

Congrats Cameron!

Great job and some tight racing!

Best of luck at VIR.
Forum: Videos April 15th, 2018, 07:39 AM
Replies: 19
Views: 444
Posted By jkv45
This sounds like it might be a case where the...

This sounds like it might be a case where the cycle rider provoked the incident by riding aggressively, and got more than he bargained for when he confronted a driver with not much to lose.

Riding...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 14th, 2018, 07:28 AM
Replies: 47
Views: 587
Posted By jkv45
If you grab the wheel with it up in the air and...

If you grab the wheel with it up in the air and twist it, does it move in any direction?

Something isn't right, but I'm not sure what it would be. As adouglas said, look at the parts diagram and...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 13th, 2018, 07:19 PM
Replies: 47
Views: 587
Posted By jkv45
If you mean the sprocket carrier - it is better...

If you mean the sprocket carrier - it is better if it's tighter.

Here's some info on the procedure to snug it up - https://faq.ninja250.org/wiki/How_to_shim_the_cush_drive
Forum: 2008 - 2012 Ninja 250R Farkles April 13th, 2018, 12:54 PM
Replies: 88
Views: 2,112
Posted By jkv45
Looks cool! Did both sprockets mount without...

Looks cool!

Did both sprockets mount without removing any of the coating?
Forum: 1986 - 2007 Ninja 250R Tech Talk April 13th, 2018, 12:49 PM
Replies: 27
Views: 337
Posted By jkv45
I sent Michelin a message a month ago and haven't...

I sent Michelin a message a month ago and haven't heard back.

The submission confirmation email said it may that 2 to 5 days to get a reply.

I've had 4 sets of Pirelli tires (2 auto and 2...
Forum: Ninjettes At Speed April 13th, 2018, 09:27 AM
Replies: 96
Views: 13,333
Posted By jkv45
AMA Land Speed Grand Championship Scheduled For...

AMA Land Speed Grand Championship Scheduled For August

http://blog.motorcycle.com/2018/04/13/motorcycle-news/74635/
Forum: Ninjettes At Speed April 13th, 2018, 08:35 AM
Replies: 96
Views: 13,333
Posted By jkv45
Rather unusual LSR record attempt - ...

Rather unusual LSR record attempt -

https://rideapart.com/articles/steam-powered-hayabusa-land-speed-record

Does the writer know motorcycles?

"Instead of the hefty four-barrel that normally...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 13th, 2018, 06:48 AM
Replies: 47
Views: 587
Posted By jkv45
That would be really odd. We had a Ninja...

That would be really odd.

We had a Ninja that went down at 85 MPH (original owner was caught on radar) and trashed most everything, but the frame and such were fine.

With the tire on the...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 13th, 2018, 05:43 AM
Replies: 47
Views: 587
Posted By jkv45
I don't see the problem either. Measure from...

I don't see the problem either.

Measure from the center of the axle bolt to a point forward that's the same on both sides - like the swingarm pivot bolt. Get the same measurement, then compare it...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 12th, 2018, 02:56 PM
Replies: 27
Views: 337
Posted By jkv45
That's weird...

That's weird...
Forum: Videos April 12th, 2018, 11:52 AM
Replies: 19
Views: 444
Posted By jkv45
Update -...

Update - http://www.fox13news.com/news/local-news/suspected-driver-in-sarasota-road-rage-arrested

No license, didn't own the car, in the U.S. Illegally...

Sounds like the rider is OK,...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 12th, 2018, 11:21 AM
Replies: 27
Views: 337
Posted By jkv45
Most tire manufactures just suggest running what...

Most tire manufactures just suggest running what it says in the manual or on a sticker on the bike.

You don't want to run it at max pressure - like it says on the sidewall.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 12th, 2018, 08:38 AM
Replies: 27
Views: 337
Posted By jkv45
Ya - sounds good, but I'm not buying it... Sounds...

Ya - sounds good, but I'm not buying it... Sounds more like a disclaimer.

I've had some of the worst degradation of traction over time (3 years) with Pirelli rubber, both on my cars and Ninjas, to...
Forum: 2008 - 2012 Ninja 250R Tech Talk April 12th, 2018, 06:48 AM
Replies: 27
Views: 439
Posted By jkv45
While you have things apart, shim the cushdrive. ...

While you have things apart, shim the cushdrive. There's usually a ton of slop, and removing it smooths the on/off/on throttle transition.

https://faq.ninja250.org/wiki/How_to_shim_the_cush_drive...
Forum: 2008 - 2012 Ninja 250R Tech Talk April 10th, 2018, 11:36 AM
Replies: 27
Views: 439
Posted By jkv45
I have had that as well. I had one bolt that...

I have had that as well.

I had one bolt that would not budge, even with a long breaker bar, but after heating a bit you could just about spin it off with your fingers (if it wasn't hot...).
...
Forum: Videos April 10th, 2018, 11:30 AM
Replies: 19
Views: 444
Posted By jkv45
I thought of that too, but I think you are better...

I thought of that too, but I think you are better off stopping to help the injured rider than trying to catch the car.

You'd think that Mazda might have passed the video car at some point that...
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