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Old 12-02-2012, 08:35 AM   #11 (permalink)
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Quote:
Originally Posted by MisterInnovation View Post
any plans for aeromods?
Full streamlining is the plan, but other mods coming first so I don't have to keep removing the bodywork. Those include exhaust mods (while trying to retain the quietest exhaust possible) and intake mods, which is going to be a conversion from dual carb to single carb.

The bike will also be put on a diet! (So I won't have to, of course.)

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Old 12-02-2012, 09:16 AM   #12 (permalink)
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Quote:
Originally Posted by BHarvey View Post
and intake mods, which is going to be a conversion from dual carb to single carb.
Wow! That is a major commitment. Might as well add a long intake runner as well. Too bad we can't get someone to design a fuel economy cam for the Ninjette since there are literally thousands of them around being sold really cheap.
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Old 12-02-2012, 11:25 AM   #13 (permalink)
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From what I've read the 1st gen had a 'too' long runner anyway, but will have to see how much room I have. Going with an FCR, not sure what size but it will be around what is stock (30mm).

Upon putting an FCR on my KLX my mileage went from 38-52 mpg, power came up dramatically and throttle response is mental, and this was with the FCR being too rich...

Have since tuned that one to give economy at small throttle and big power when you NEED it.

I think the increase in intake velocity/volume with going to a single carb will net a pretty good gain in mpg and torque at the same time, although I am pretty sure a set of dual FCR's would do the same, but the single seems more logical for keeping intake velocity high at lower revs.
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Old 12-02-2012, 11:54 AM   #14 (permalink)
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Pod to valve runner lengths would need to be 16-18" for solo runners and 5,000 rpm peak.
.
Might as well go with the Ecotrons dual channel FI kit if you are going to change the intake.
.
Kawasaki Ninja 250r Fuel Injection Conversion Kit - Small Engine EFI Conversion kit | fuel injection kits
.
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Old 12-02-2012, 04:57 PM   #15 (permalink)
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Saw that FI kit the other day but I like simple. Give me gravity feed petcock and a slide carb any day.

On another note, I changed the oil out today and installed an oil temp gauge. Took out the Amsoil 10w40 and put in Delvac 15w40. Shifting is MUCH better!
Oil temps got up to 183F and stabilized there. Was thinking of Rotella 10w30 but might install an oil pressure gauge first just to make sure. Manual specifies 50 psi at 4k rpm's.

Never thought I could like a small bike so much!
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Old 12-02-2012, 05:11 PM   #16 (permalink)
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I run Motul 5W30 in my CBR.
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Old 12-02-2012, 06:08 PM   #17 (permalink)
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Does your manual spec that weight oil?
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Old 12-02-2012, 06:19 PM   #18 (permalink)
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Honda CBR250R FI Single - '11 Honda CBR250R
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2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
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spec is 10W30 conventinal. This is Motul double ester synth minimum loss oil. $15 per liter but I only need 1.4 liters and the interval is speced at 8,000 miles. Chep performance upgrade.
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Old 12-03-2012, 08:51 PM   #19 (permalink)
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BHarvey, Congrats on getting your Ninja 250. They are great little bikes and a lot of fun to ride. Keep us posted as you play with the carburation.
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Old 12-04-2012, 08:10 AM   #20 (permalink)
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No problem Vic.

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