Forum: 1986 - 2007 Ninja 250R Tech Talk
July 2nd, 2017, 07:37 PM
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Replies: 21
Views: 2,733
Start a new thread
Hi ThrottleGirl,
Moab is a true off road wonderland and my favorite place to ride. I bring several bikes when I come down (from SLC), so I can ride all the trails from graded dirt to the Slick Rock...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
April 29th, 2017, 07:57 PM
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Replies: 9
Views: 1,208
No worries...
You didn't jump the gun.
Dirt bikes see this all the time. With MX bikes in the 12-15 psi and Trials bikes in the 4-6 psi range, the beads are always slipping and losing their alignment.
Somebody...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
April 28th, 2017, 06:24 PM
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Replies: 9
Views: 1,208
Wheel wobbles, but the rim is fine
I'm suspicious of the tire seating on the rim.
Most tires have a small raised line around the tire, near where the bead and tire come together. It should have the same spacing from the rim, all...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
January 18th, 2017, 05:08 PM
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Replies: 9
Views: 3,376
Old school advice
No matter what sprockets you select, make sure one has an odd count of teeth and the other is even. This will give you the best wear pattern from both the sprockets and the chain. Always replace all...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
January 16th, 2017, 07:57 PM
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Replies: 16
Views: 3,693
Welding thin walled tube
Hi jkv45,
Thin walled tube, like this exhaust pipe, takes a little prep to keep it aligned so it will fit correctly along its intended path. If you were to remove it, then weld it in a continuous...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
January 15th, 2017, 07:28 AM
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Replies: 16
Views: 3,693
Awful weld
Agreed, ugly weld with NO penetration. Yuk...
That's one to take back to the dealer. If they won't help, try this.
Pull the plastic so a welder can get to it. Take the bike to the weld shop and...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
December 13th, 2016, 10:27 PM
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Replies: 21
Views: 2,733
Go with Shinko
You have received a lot of advice, but not an answer to the question you asked.
Yes, you will be fine using the Shinko.
Order them, pop them on and ride. Your riding skills will improve as the...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
September 26th, 2016, 01:24 AM
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Replies: 3
Views: 1,213
Instructions for first engine swap
I will apologize first for making this post very elementary, but it sounds like you haven't grown up in a mechanical culture. I have been lucky in my mech training. With military a/c training, I was...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
September 9th, 2016, 05:43 PM
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Replies: 23
Views: 6,087
Change bikes - Go to a real GP bike
You're missing a real easy way to have the best.
Buy a MotoGP 125cc bike. New, they were $10k, with spares $20k. Weight 155 pounds, 40hp.
You can pick one up with tons of spares: pistons,...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 9th, 2016, 09:55 AM
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Replies: 7
Views: 2,173
maybe a better buy
Jeff,
The above post may be a better buy for you than my tank.
Cheers, Jim
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 5th, 2016, 02:53 PM
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Replies: 7
Views: 2,173
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 5th, 2016, 07:28 AM
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Replies: 7
Views: 2,173
A little more info please
I'm a little confused. You have a pregen bike that needs a new tank, and found a newgen tank. Right?
If so, are you looking for a pregen tank?
I have one, but the inside is rusty. It might work...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 4th, 2016, 09:22 PM
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Replies: 7
Views: 2,173
NO, won't fit
The tanks are about 2 inches different in length, with the newgen being longer.
They have to fit above the top tube, which is very different on each model both in angle and length.
If you have...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 4th, 2016, 08:05 AM
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Replies: 15
Views: 3,231
M/C friendly machine shops
Burphel has a good idea, but take it one step further.
Call a couple of M/C shops and ask who they like to use. If there is consensus in a certain shop, use it. Machine shops tend to specialize...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
September 3rd, 2016, 07:49 AM
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Replies: 15
Views: 3,231
Stud extraction
Hi Josh,
The best way to solve this problem: take it to a machine shop.
They will pull the broken stud for a flat fee. Let them see where it is and they will quote you a price. The price is higher...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
August 14th, 2016, 06:32 PM
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Replies: 11
Views: 1,323
Just move...
to Utah.
Not ever a problem.
Even when it sits out all night,
in the sprinklers...
cheers,
:thumbup:
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Forum: 2008 - 2012 Ninja 250R Tech Talk
August 2nd, 2016, 07:18 AM
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Replies: 255
Views: 37,705
Chain length?
Csmith12, please clarify... Do you mean adding links to an existing chain? Or, changing a chain to a longer length? Changing the chain out would be a cost effective fix for this problem. Plus you...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
July 31st, 2016, 10:51 AM
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Replies: 6
Views: 1,026
How to analyze the problem
Do you have a shop with a Dyno and air/fuel analyzer? This is the best way to determine your lean/rich problem.
When you put your high flow can on the bike, did it come with the two shims for the...
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Forum: 2008 - 2012 Ninja 250R Tech Talk
July 30th, 2016, 07:04 AM
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Replies: 6
Views: 1,026
Riding style first
First, fuel flow decreases with altitude. The fuel/air ratio must remain the same for the engine to work at all. So, the higher the elevation = the less air, and less fuel. This is called Density...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
July 17th, 2016, 06:37 AM
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Replies: 4
Views: 939
Fuel tank swap, no
I put the 07 tank on the 96 - not even close. The 07 tank is lower and about 2 inches longer. The back tank mount would have to be moved, which means the 96 seat and tail section could not be used...
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Forum: 1986 - 2007 Ninja 250R Tech Talk
July 16th, 2016, 06:31 AM
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Replies: 4
Views: 912
Autopsy report
Let the group know what you find.
There is a wonderful group here that can help you with the swap, tips and tricks.
The engine exchange is straight forward, with only hand tools needed.
cheers,
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Forum: 1986 - 2007 Ninja 250R Tech Talk
July 15th, 2016, 08:58 AM
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Replies: 4
Views: 912
without welding? no
The thread here is - The Ex 500 Engine swap with pics
Internet search for "ex500 engine into ex250", turned up 44k hits, lots of youtube
Ebay shows ex500 and ex250 engines at the same prices....
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Forum: 1986 - 2007 Ninja 250R Tech Talk
July 15th, 2016, 07:13 AM
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Replies: 4
Views: 939
Close? yes, Bolt on? no
I have three 250s, '96, '07, '09. General differences in the areas of your inquiry:
Tanks - are different in size and lengths; I will put the 07 tank on the 96 this weekend and let you know...
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Forum: Ninjettes At Speed
May 21st, 2016, 09:36 AM
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Replies: 9
Views: 2,691
That sounds like the perfect mate.
The...
That sounds like the perfect mate.
The fabrication is around two down tubes for the front engine mounts. And two extension hangers to pick up the rear mounts onto the cross tube for alignment of the...
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Forum: Ninjettes At Speed
May 20th, 2016, 02:23 PM
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Replies: 9
Views: 2,691
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