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Old 12-27-2009, 10:01 AM   #2671
dodge
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Yah, Howard is a gnarley beast. So ugly, he's sorta cute.
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Old 12-27-2009, 08:56 PM   #2672
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Air box, jetting, and fork questions

I finally got to tear the shock out and get started on the SV swap, but now that I have that out I have some questions about the airbox and all the feaking bits in there.

1. Whats the deal with the big rubber 90 degree elbow inlet snorkel?
2. The metal screeen?
3. The sheet metal tin baffel?

Should I keep any of this stuff in there or remove it?

4. What Jetting are people running at sea level?

5. What fork oil weights with stock springs?

Thanks.
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Old 12-28-2009, 12:33 AM   #2673
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Quote:
Originally Posted by pdxthmper
I finally got to tear the shock out and get started on the SV swap, but now that I have that out I have some questions about the airbox and all the feaking bits in there.

1. Whats the deal with the big rubber 90 degree elbow inlet snorkel? tuned runner length for low end torque
2. The metal screeen? backfire protection
3. The sheet metal tin baffel? no effing clue, but I know what you mean. mine ran fine without it

Should I keep any of this stuff in there or remove it? remove the sheetmetal plate

4. What Jetting are people running at sea level? 148 main, 4th needle clip

5. What fork oil weights with stock springs? 10w should be good. I ran 15 but its a little harsh

Thanks.

np.
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Old 12-28-2009, 06:33 AM   #2674
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Quote:
Originally Posted by drexNX
np.
Great, that answered some questions I had. My GSXR shock showed up on Xmas eve. Now just need free time to get it installed. Where is everyone getting their main jets at? BikeBandit only goes up to 142.
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Old 12-28-2009, 02:26 PM   #2675
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Pretty sure the plate is there to make the air turn at least 90 deg before entering the filter. This is an easy way to make particulates drop out the air stream by lowering it's velocity before reaching the filter. Common design addition on air cleaners.
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Old 12-28-2009, 03:58 PM   #2676
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Quote:
Originally Posted by wyowillys46
Pretty sure the plate is there to make the air turn at least 90 deg before entering the filter. This is an easy way to make particulates drop out the air stream by lowering it's velocity before reaching the filter. Common design addition on air cleaners.
They (honda) went through a lot of effort on the NX compared to my 2000 xr650L which has a filter around the outlet for the airbox. It is a regular obstacle course in there for the air just to get to the filter.
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Old 12-29-2009, 02:22 PM   #2677
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SV vs NX shock info

Quote:
Originally Posted by IheartmyNx
SV shock

Here are some lengths of different SV shocks:


00-03 GSXR750 325mm 400#

01-03 GSXR600 325.5mm 450# *corrected by TWF...thanks!

01-02 GSXR1000 329.5mm 430#

03-04 SV650 330mm 430# <== stock 2nd gen...05 should be the same

99-03 GSXR1300(Busa) 330mm 700#

04 GSXR750 332.5mm 408#

04 GSXR600 332.5mm 425#

03-04 GSXR1000 332.5mm 480#

99-02 SV650 337mm 510# <<<====stock 1st gen

04 ZX10R 338mm 540#

03-04 ZX6R(636) 340mm 540# *corrected by e lo...thanks!
96-99 GSXR750 345mm 375#

97-00 GSXR600 375mm 375#

05 GSX-R 1000 332.5mm 450# <<<===added by me...spring rate from racetech.com, length from ohlins.com

Via, http://www.mnsportbikeriders.com/for...howtopic=24967
(not claiming credit)


Ok so I am using a 1st gen SV shock (yellow spring/ black body)
The measured spring rate for the SV shock 488 lb/in, versusthe NX at
438 lb/in. I measured both springs. The NX spring would not fit on the SV shock body, the spring ID is to small, and taking the NX shock apart is a PIA.

After cutting down the spacer in the upper mount, the shock body is the same width as the NX shock at the mount.

The lower mounting hole can be moved up the clevis to match the stock nx250 lenght of 320mm, and you cut off the old mounting hole.

When I checked the force required to move the damper 10mm per the manual I read around 50lbs, the NX manual gives a stock value of 61 lbs, mine was 8.5lbs, no wonder it was like riding a pogo stick.

So if you are still with me, I think based on this data the GEN 1 SV is one of the best options to replace the stock NX shock with, IF your looking for a stock replacement with added preload adjustment, for under $50.
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Old 01-01-2010, 03:45 PM   #2678
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Happy New Year!

So, what did your NX do today?
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Old 01-01-2010, 05:58 PM   #2679
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The recent EXCELLENT fork swap write up by captdirt has got me thinking (dangerous, I know).....

So, out of curiosity, I did a little search of 37mm fork tubes and found this list over on the XS11 forum:

Quote:
37 Honda CR-80R (99-02)
37 Honda CR-85R (03-04)
37 Honda CR-125R "Elsinore" (79)
37 Honda CR-125R "Elsinore" (80)
37 Honda CR-250R "Elsinore" (78-80)
37 Honda NX-250 (88-90)
37 Honda XR-250R (81-82)
37 Honda CMX-450C (86-87)
37 Honda CX-500TC (82)
37 Honda FT-500 "Ascot" (82-83)
37 Honda VF-500C "Magna" (84-85)
37 Honda VT-500C "Shadow" (83-84)
37 Honda VT-500C "Shadow" (85-86)
37 Honda XL-500R (82)
37 Honda CB-550SC (83)
37 Honda CBR-600F "Hurricane" (87-90)
37 Honda CB-650SC "Nighthawk 650" (82)
37 Honda CX-650T "Turbo" (83)
37 Honda VF-700C "Magna" (84)
37 Honda VFR-700F "Interceptor" (86)
37 Honda CB-750F (81-82)
37 Honda VF-750C "V45 Magna" (82-83)
37 Honda VF-750S "Sabre" (82-83)
37 Honda VFR-750F "Interceptor 750" (86)
37 Honda CB-900C "Custom" (80-82)
37 Honda GL-1000/K "Goldwing" (75-79)
37 Honda GL-1000/K "Goldwing" (75-79)
37 Kawasaki EX-500D1-D11 "Ninja 500R" (94-04)
37 Kawasaki ZL-600A1/A2 (86-87)
37 Kawasaki ZX-600A1-A3 "Ninja" (85-87)
37 Kawasaki ZX-750A1-A3 "GPz" (83-85) 37 Kawasaki ZX-750E1/E2 "Turbo" (84-85)
37 Kawasaki ZX-1100A1 "GPz" (83)
37 Kawasaki ZX-1100A2 "GPz" (84)
37 Suzuki RM-85 K2-K4 (02-04)
37 Suzuki XN-85 D "Turbo" (83)
37 Suzuki GS-500 EK/EL/EM/EN/EP/ER/ES/ET (89-96)
37 Suzuki GS-500 EV/EW/EX/EY (97-00)
37 Suzuki GS-550 LD/LF (83, 85)
37 Suzuki GS-550 ED/ESD/ES3/ ESE/ EF/ESF/ESG (83-86)
37 Suzuki GS-650 MD "Katana" (83)
37 Suzuki GS-700 EF/ESF (85)
37 Suzuki VS-700 GLPG/GLEPG/ GLPH/GLEPH "Intruder" (85-87)
37 Suzuki GS-750 ED/ESD (83)
37 Suzuki GS-750 LN (79)
37 Suzuki GS-750 SD "Katana" (83)
37 Suzuki GS-850 GN/GT/GX/GZ (79-82)
37 Suzuki GS-850 GD (83)
37 Suzuki GS-1000 C/EC/N/EN/ET (78-80)
37 Suzuki GS-1000GT/GLT/GX/GLX (80-81)
37 Suzuki GS-1100 ET/EX/EZ (80-82)
37 Suzuki GS-1100 ED/ESD (83)
37 Suzuki GS-1100 GZ/GLZ (82)
37 Suzuki GS-1100 LT (80)
37 Suzuki GS-1150 ES3/ESE/EF/ESF/EF2/EG/ESG (83-86)
37 Yamaha XJ-650 LK "Seca Turbo" (83)
37 Yamaha XJ-900 RK "Seca" (83)
37 Yamaha XV-920 RH/RJ "Virago" (81-82)
37 Yamaha XJ-1100 J "Maxim" (82)
37 Yamaha XS-1100 E/F/G/H (78-81)
37 Yamaha XS-1100 LG/LH (80-81)
37 Yamaha XS-1100 LG/LH "Midnight Special" (80-81)
37 Yamaha XS-1100 SF (79)
Don't know if that will help anyone out doing a fork change but thought I'd add it to the archive of wisdom just in case.....


Now, if I could find info that includes the length of the various fork tubes, that'd be cooking with gas!
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Old 01-02-2010, 11:52 AM   #2680
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Great Pic

Quote:
Originally Posted by ravenranger
Happy New Year!

So, what did your NX do today?
RavenRanger
A warm day with sunshine and dry to boot. What a novel concept this time of year.
I love AZ.
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Old 01-02-2010, 01:27 PM   #2681
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You Sir are a lucky man.
Today in -16C mine has had its battery and plastics removed.
Gearing up for the over-winter modifications.



Quote:
Originally Posted by ravenranger
Happy New Year!

So, what did your NX do today?
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Old 01-03-2010, 05:30 AM   #2682
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Quote:
Originally Posted by ravenranger
Happy New Year!

So, what did your NX do today?
Not mutch, it's snowing outside.
I am doing some winter maintenance on the engine so when the snow clears I can ride again.
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Old 01-04-2010, 04:04 PM   #2683
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Oh, wait, you said NX, not the L'il Red Piglet. It rested while I had the 223 cc bike out.
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Old 01-04-2010, 04:06 PM   #2684
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Wow John, where did you go today?
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Old 01-04-2010, 08:48 PM   #2685
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Quote:
Originally Posted by ravenranger
Wow John, where did you go today?
Santa Rita range.
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