Text only | Text with Images

GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: gs50000e on July 09, 2003, 01:15:16 PM

Title: K&N filter way better than uni+box ...setup?
Post by: gs50000e on July 09, 2003, 01:15:16 PM
I put a k&n on last night and the bike sounded alot better and had more power.  The only problem was the bike had a flat spot from 4 - 8k rpm. So, I put the box+uni back on and the bike runs smooth but not as powerful and quiet.  The K&n draws alot more air.  When I get my carb rebuilt kits I'll set the carbs for the K&n.  Does anyone know a the setup for a K&N with jet kit + 40 pilots and V&H full exhaust?  Thanks dilly
Title: K&N filter way better than uni+box ...setup?
Post by: dond6 on July 09, 2003, 01:45:40 PM
Start with 150/40/3-3.5 turns of the air screw
Title: No kit...
Post by: The Buddha on July 09, 2003, 02:35:08 PM
That is correct...and its with no kit. Toss airbox put on K&N pod filters and slip on/full pipe and the jets he said. I have had to bloc off 1 hole in the bottom of the slide on all bikes except 1 and that is my 89 with 40K miles and 60psi (just a guess) hot compression...
Cool.
Srinath.
Title: K&N filter way better than uni+box ...setup?
Post by: J-Lo on July 09, 2003, 04:24:37 PM
I have had the K&N clamp-on for about a year now, and all I can say is you better make damn sure that the sucker is bolted on TIGHT.  Mine pulled off and almost fried my engine.  I had my mechanic put in a piece of steel to reinforce the filter in there.  The old airbox is in there tight for a reason, so make sure the new one is tight too....

Other than that, the K&N is awesome.
Title: K&N filter way better than uni+box ...setup?
Post by: Pkaaso on July 09, 2003, 08:34:02 PM
What main jet would you recomend for me?  I have the K&N  RU2970 single filter with the two clamps.  I have a Cobra F1s.  I have jetted carbs with 125/40 3.5 turns out.  

The problem is it won't idle very well and wants to die till about 2500 RPM's then it runs awsome.  I have the idle screw all the way in.

Do I need bigger main jets or pilot jets?


Any sugestions?
Paul
Title: K&N filter way better than uni+box ...setup?
Post by: JasonB on July 09, 2003, 08:36:21 PM
According to the stock way of doing it you should be using 140 mains and 2 #4 washers under the 40 pilots. and 3 turns out. This is the filters and stock/slip-on exhaust might try 140 and 142.5 just to test.
Title: K&N filter way better than uni+box ...setup?
Post by: Pkaaso on July 09, 2003, 08:40:13 PM
Oh yea,  I have one washer under my needles now.  Will the bigger main jets effect the idle any?

I did notice that at idle or just above, I get a little black smoke and it smells rich.

So, with the K&N you need to go upto 140's? and two washers?

Paul
Title: K&N filter way better than uni+box ...setup?
Post by: JasonB on July 09, 2003, 08:42:21 PM
Thats the word from the all high tuner of GS seshadri srinath. Also check out Pantablo's website he has jetting info there.
Text only | Text with Images