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Forum: 1986 - 2007 Ninja 250R Tech Talk March 14th, 2020, 08:23 AM
Replies: 31
Views: 5,422
Posted By Theorist
Thank you. Up to date feedback on how the new...

Thank you. Up to date feedback on how the new generation of tires do on our ninjettes is helpful to many of us!
Forum: 1986 - 2007 Ninja 250R Tech Talk August 30th, 2019, 02:53 PM
Replies: 14
Views: 2,224
Posted By Theorist
Thank you. That makes perfect sense. The...

Thank you. That makes perfect sense.

The Thermo-bob-3 for the Ninja seems it couldn't work the same way, as the bypass line is the small diameter line on the side of the thermostat. Just as the...
Forum: 1986 - 2007 Ninja 250R Tech Talk August 30th, 2019, 01:19 PM
Replies: 14
Views: 2,224
Posted By Theorist
Right. Two tee connections would send coolant...

Right. Two tee connections would send coolant through both the bypass and the radiator. When the thermostat is cold and nearly closed (but never fully closed with the stock design) most of the...
Forum: 1986 - 2007 Ninja 250R Tech Talk August 30th, 2019, 12:42 PM
Replies: 14
Views: 2,224
Posted By Theorist
Has anyone tried a cheaper alternative to the...

Has anyone tried a cheaper alternative to the thermo-bob?

Since any motorcycles do have a thermostat bypass line, is it possible to use a thermostat housing for or from another bike? Would it...
Forum: 1986 - 2007 Ninja 250R Tech Talk August 20th, 2019, 08:42 PM
Replies: 31
Views: 5,422
Posted By Theorist
Slim Michelin offerings for pregen

It's too bad Michelin doesn't offer more for our 1st gen Ninjas.

The Michelin Commander 2 cruiser tire is extremely well reviewed, available in a rear size 130/90-16 73h, and seems to have a...
Forum: 1986 - 2007 Ninja 250R Tech Talk August 18th, 2019, 03:58 PM
Replies: 31
Views: 5,422
Posted By Theorist
Earlier this year Pirelli started selling a new...

Earlier this year Pirelli started selling a new sport touring tire, their Pirelli Angel Scooter tire.

Several online retailers have marked the Demon Scooter as a closeout item.

Does anyone...
Forum: 1986 - 2007 Ninja 250R Tech Talk August 4th, 2019, 11:24 PM
Replies: 14
Views: 2,224
Posted By Theorist
I'd expect that naked it would run cooler in...

I'd expect that naked it would run cooler in traffic or at low speeds and stops with more air cooling. With fairings the electric fan might kick on more often in heavy stop and go traffic. Running...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 25th, 2019, 05:44 PM
Replies: 17
Views: 1,866
Posted By Theorist
Wow. If only it were easy to part out a vehicle...

Wow. If only it were easy to part out a vehicle I think I've just found my calling or at least a profitable business.

I've often been impressed at how expensive replacement parts are even for a...
Forum: 2008 - 2012 Ninja 250R Tech Talk July 25th, 2019, 01:30 PM
Replies: 11
Views: 1,053
Posted By Theorist
I thought I heard that iridium plugs can often...

I thought I heard that iridium plugs can often used a larger gap than standard copper plugs. I may be wrong about that but thought it was possible due to the smaller, more focused electrodes being...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 25th, 2019, 12:59 PM
Replies: 17
Views: 1,866
Posted By Theorist
Feel free to share a link to your Craigslist ad. ...

Feel free to share a link to your Craigslist ad. Where are you and the bike located?

States each have their own laws about titles, vehicle sales, and taxes. Some states don't require a title...
Forum: Motorcycle-related July 24th, 2019, 10:21 AM
Replies: 4
Views: 2,911
Posted By Theorist
Are they complete? What is missing for one...

Are they complete? What is missing for one complete bike? For two complete bikes?

I don't see any gas tanks in the photos.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 19th, 2019, 10:59 PM
Replies: 17
Views: 1,866
Posted By Theorist
Thank you. I don't know why I failed to think of...

Thank you. I don't know why I failed to think of the triple camps moving relative to each other. This is very helpful.
Forum: 1986 - 2007 Ninja 250R Tech Talk July 19th, 2019, 03:43 PM
Replies: 17
Views: 1,866
Posted By Theorist
How does one straighten out twist in fork?

How does someone straighten out a twisted fork?

It seems most likely that one or both fork tubes are bent near the lower triple clamp. (I'm guessing or hoping the stanchions aren't bent and...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 19th, 2019, 02:59 PM
Replies: 0
Views: 517
Posted By Theorist
Chain adjustment without a center stand

I bought my Ninjette without a center stand. I don't want to mess with lifting the bike everytime I check or adjust the chain slack. I've been keeping the chain slack 35-45mm and adjust it to...
Forum: General Motorcycling Discussion July 19th, 2019, 02:27 PM
Replies: 23
Views: 3,341
Posted By Theorist
Where in the lever pull do most pregen ninjette clutches engage?

My clutch doesn't engage until the clutch lever is 80 to 90% released. It's been like that since I bought it. When I bought it the clutch cable was a little bit too tight having zero free play in...
Forum: General Motorcycling Discussion July 19th, 2019, 01:21 PM
Replies: 8
Views: 1,669
Posted By Theorist
Rusted gas tanks

Rusted gas tanks can be a big problem as others have explained, but for someone who enjoys mechanical work, they can be a bargain. I was given an old Hyosung gt250 with a badly rusted gas tank for...
Forum: General Motorcycling Discussion July 19th, 2019, 10:21 AM
Replies: 8
Views: 1,669
Posted By Theorist
Bikes that have been dropped

I wouldn't necessarily exclude all bikes that have signs that they've been dropped. Low cost small bikes like ours are often used by many new riders and are likely to have been dropped.

Light...
Forum: General Motorcycling Discussion July 19th, 2019, 10:03 AM
Replies: 8
Views: 1,669
Posted By Theorist
Pay a professional bike mechanic to do a prepurchase inspection

I especially Ducatiman's first reply. It seems to concisely hit all the most important items.

I'd also take it to a bike shop for a prepurchase inspection. It may save you from buying a real...
Forum: General Motorcycling Discussion July 19th, 2019, 09:38 AM
Replies: 4
Views: 1,032
Posted By Theorist
Thumbs up It depends on the commute.

I wish we could get the Yamaha Tracer 700 in the US, a sport touring variant of the mt-07 fz-07.

It depends on the commute. I'm happy with my prejen. The newer Ninja 250, 300, or 400, the r3...
Forum: General Motorcycling Discussion July 19th, 2019, 08:48 AM
Replies: 95
Views: 10,803
Posted By Theorist
a bike with a lower book value, resale value, and...

a bike with a lower book value, resale value, and insurance replacement value

That's assuming it's not a spare gauge and you need to keep it on one of your bikes with a significant book value.
Forum: General Motorcycling Discussion July 19th, 2019, 07:54 AM
Replies: 23
Views: 3,341
Posted By Theorist
Is there any chance that the clutch lever is an...

Is there any chance that the clutch lever is an aftermarket replacement, bent, or the grips are aftermarket? Perhaps something is limiting the cable's range of motion at the lever?

I'm curious...
Forum: General Motorcycling Discussion July 19th, 2019, 07:30 AM
Replies: 23
Views: 3,341
Posted By Theorist
Jay seems to understand that you've fully...

Jay seems to understand that you've fully tightened the cable or it's catching, not sliding. It sounds to me like the cable is as loose as possible. Is that correct? You have slack on both ends of...
Forum: General Motorcycling Discussion July 15th, 2019, 10:33 PM
Replies: 23
Views: 3,341
Posted By Theorist
Thanks. I guess I need to tighten my clutch...

Thanks. I guess I need to tighten my clutch cable too.

I thought it was normal to experience a little bit more friction or drag when the bike is in gear with the clutch lever squeezed than when...
Forum: 1986 - 2007 Ninja 250R Tech Talk July 15th, 2019, 10:15 PM
Replies: 26
Views: 1,249
Posted By Theorist
If I were stuck with the starter, I'd start to...

If I were stuck with the starter, I'd start to survey the rest of the bike to see what else might be needed, before putting too much effort into the starter.

Can you push start it?
Forum: 1986 - 2007 Ninja 250R Tech Talk July 11th, 2019, 09:10 AM
Replies: 31
Views: 5,422
Posted By Theorist
New ContiScoot: are 'performance' scooter tires really performance tires?

Continental has a new premium scooter tire with some loose connection to their latest ContiRoadAttack 3 sport touring tire. The Conti Scoot rear 120/80-16 tire is extremely affordable at less than...
Showing results 1 to 25 of 39

 
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