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Search: Posts Made By: jkv45
Forum: 2008 - 2012 Ninja 250R Tech Talk Yesterday, 02:33 PM
Replies: 3
Views: 57
Posted By jkv45
One each carb. Goes in from the bottom before...

One each carb. Goes in from the bottom before the Jet Holder/Main Jet

Stick up and are visible when in place - https://faq.ninja250.org/images/b/b0/Fuel_overflow_connection.jpg

Labeled "Jet...
Forum: 2008 - 2012 Ninja 250R Tech Talk Yesterday, 01:03 PM
Replies: 3
Views: 57
Posted By jkv45
Carbs...carbs...carbs... Something isn't...

Carbs...carbs...carbs...

Something isn't right. Did you remove the idle mixture screws and clean the passages? O-rings on the screws look good? Set to 2.5 turns out for starters? Carbs bench...
Forum: 1986 - 2007 Ninja 250R Tech Talk Yesterday, 06:16 AM
Replies: 4
Views: 113
Posted By jkv45
Like top-end or valvetrain noise? Sound...

Like top-end or valvetrain noise?

Sound like the cam chain slapping around? Cam Chain Tensioner may be bad.

Does it happen at a certain RPM?

Start by isolating the area as much as...
Forum: 1986 - 2007 Ninja 250R Tech Talk April 6th, 2020, 06:20 AM
Replies: 9
Views: 301
Posted By jkv45
Good to hear you have it sorted. Make sure...

Good to hear you have it sorted.

Make sure you have fresh gas before doing your final tuning if it has been sitting any amount of time.
Forum: 1986 - 2007 Ninja 250R Tech Talk April 2nd, 2020, 07:47 PM
Replies: 9
Views: 301
Posted By jkv45
1) Missing the o-ring and washer on the idle...

1) Missing the o-ring and washer on the idle mixture screws will definitely mess up your idle.

2) Torn or damaged carb diaphragms will mess up everything else.
Forum: General Motorcycling Discussion March 31st, 2020, 09:01 AM
Replies: 95
Views: 7,203
Posted By jkv45
Latest ZX-25R info - KAWASAKI ANNOUNCE RACE...

Latest ZX-25R info -

KAWASAKI ANNOUNCE RACE ONLY CARBON FIBRE ZX-25R

https://www.visordown.com/news/new-bikes/kawasaki-announce-race-only-carbon-fibre-zx-25r
Forum: The Ex-Ninjetters Lair March 25th, 2020, 12:58 PM
Replies: 25
Views: 5,716
Posted By jkv45
Polished-up the rear backing plate - ...

Polished-up the rear backing plate -

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

https://i.imgur.com/dg44uVe.jpg

Not mirror-shine, but pretty sure that's about the right level - but it's hard to know....
Forum: 1986 - 2007 Ninja 250R Tech Talk March 25th, 2020, 07:11 AM
Replies: 7
Views: 172
Posted By jkv45
That's pretty common... (for Gordon)

That's pretty common...

(for Gordon)
Forum: General Motorcycling Discussion March 20th, 2020, 07:49 AM
Replies: 1
Views: 415
Posted By jkv45
Free documentaries on MotoGP.com

Usually requires a subscription, but currently free -

https://www.motogp.com/en/news/2020/03/20/stay-at-home-and-watch-our-free-documentaries/328404
Forum: The Ex-Ninjetters Lair March 18th, 2020, 12:34 PM
Replies: 25
Views: 5,716
Posted By jkv45
Vintage CCR video featuring John Fogerty on a red...

Vintage CCR video featuring John Fogerty on a red CL450K2 -

Lb3ppp_RoT0

EDIT - I need someone to show me how to use the YouTube embed feature here. Can't seem to figure out what needs to be...
Forum: The Ex-Ninjetters Lair March 18th, 2020, 07:21 AM
Replies: 25
Views: 5,716
Posted By jkv45
Here's a before-and-after comparison with the...

Here's a before-and-after comparison with the "After Blast" and steelwool, plus some polishing -

https://i.imgur.com/dWvGH5A.jpg

https://i.imgur.com/R6A04rP.jpg

The pitting is still there,...
Forum: The Ex-Ninjetters Lair March 17th, 2020, 02:44 PM
Replies: 25
Views: 5,716
Posted By jkv45
If I want to keep it chrome, and it's not...

If I want to keep it chrome, and it's not terrible, I use a liquid conversion coat form Eastwood called "After Blast" with fine (0000) Steelwool to remove and neutralize the rust. I may then use...
Forum: The Ex-Ninjetters Lair March 17th, 2020, 11:03 AM
Replies: 25
Views: 5,716
Posted By jkv45
Some neat cars he has there! Our next...

Some neat cars he has there!

Our next project may be the '82 Z50R my boys rode as their first real cycle.

It's sitting in my garage with the wheels off. I powder coated the wheels black...
Forum: The Ex-Ninjetters Lair March 17th, 2020, 06:27 AM
Replies: 25
Views: 5,716
Posted By jkv45
Kinda forgot that I started this thread... ...

Kinda forgot that I started this thread...

Currently gathering parts and starting some reassembly.

On closer inspection, things weren't so great -

https://i.imgur.com/dWvGH5A.jpg
...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 16th, 2020, 07:06 AM
Replies: 10
Views: 506
Posted By jkv45
That still suggests a carb issue. A problem...

That still suggests a carb issue.

A problem with the petcock or screens/filters usually shows up as a shutdown (for lack of fuel) after some run-time. After waiting a bit the engine will run...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 13th, 2020, 07:01 AM
Replies: 10
Views: 506
Posted By jkv45
Sorry to hear you are still having problems after...

Sorry to hear you are still having problems after trusting your cycle to a respected shop.

Don't these "expert" shops take the cycles for a ride to see if they operate correctly? What kind of...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 13th, 2020, 06:49 AM
Replies: 10
Views: 506
Posted By jkv45
It's worth a shot, but I'd try Techron...

It's worth a shot, but I'd try Techron Concentrate (1oz per gal) instead of Seafoam.

A better product, and stronger cleaner, IMO.
Forum: General Motorcycling Discussion March 11th, 2020, 06:16 AM
Replies: 27
Views: 2,496
Posted By jkv45
I subscribed to all of them at one time as well. ...

I subscribed to all of them at one time as well. Sportrider was the best IMO, but one of the first to go. The others went all Lifestyle and I let my subscriptions lapse - then they all disappeared. ...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 6th, 2020, 04:18 PM
Replies: 4
Views: 340
Posted By jkv45
What was the problem?

What was the problem?
Forum: 1986 - 2007 Ninja 250R Tech Talk March 6th, 2020, 11:13 AM
Replies: 2
Views: 689
Posted By jkv45
Not an unusual situation. Sounds like the carbs...

Not an unusual situation. Sounds like the carbs need a good cleaning.

If you can remove them yourself you can send them to ducatiman (member here - Custom Carb Services LLC) and they will be good...
Forum: 1986 - 2007 Ninja 250R Tech Talk March 6th, 2020, 07:38 AM
Replies: 4
Views: 340
Posted By jkv45
Can you just back it down enough to get the RPMs...

Can you just back it down enough to get the RPMs about 2500?

It's an enrichener, so raising the RPMs is common.

Once it starts I always set it so it will keep running at a moderate RPM, usually...
Forum: 2008 - 2012 Ninja 250R Tech Talk March 5th, 2020, 02:48 PM
Replies: 18
Views: 608
Posted By jkv45
Shim it. Even if you bought new rubber pads it...

Shim it. Even if you bought new rubber pads it may still be overly loose.

https://faq.ninja250.org/wiki/How_to_shim_the_cush_drive
Forum: Pictures March 5th, 2020, 07:20 AM
Replies: 4
Views: 717
Posted By jkv45
R3?

R3?
Forum: 2008 - 2012 Ninja 250R Tech Talk March 4th, 2020, 12:33 PM
Replies: 18
Views: 608
Posted By jkv45
The deposits usually build up around the stem of...

The deposits usually build up around the stem of the valve and don't affect clearances.

They restrict and disrupt intake flow, and in the combustion chamber can cause detonation.
Forum: 2008 - 2012 Ninja 250R Tech Talk March 4th, 2020, 07:16 AM
Replies: 18
Views: 608
Posted By jkv45
I use Techron Concentrate at 1oz per gal (now...

I use Techron Concentrate at 1oz per gal (now renamed Complete Fuel System Cleaner, I believe) in all my vehicles once per season.

It was suggested to me by a Mechanical Engineer friend that works...
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