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Rejet after muffler/air filter change (Read 197 times)
Joer0952
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Rejet after muffler/air filter change
12/23/16 at 12:13:38
Hello, I read Serowbot's thread on rejetting the carburetor and to be honest some of it is over my head but I think I got the basic gist of how to rejet my bike, but my question is what size jets to get. I figured from the reading that I should go richer since I live in NJ at sea level and just purchased a dyna muffler, and was thinking of getting the K&N SU-6595 air filter. Currently the bike is bone stock and I wanted to get recommendations on what size jets to get for the main and pilot jet as well as the spacer size for after the muffler/air filter upgrades.
Thanks,
Joe
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Kenny G
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Re: Rejet after muffler/air filter change
Reply #1 -
12/23/16 at 12:28:22
Joe,
Contact Lancer and he will hook you up with what you will need to tune your bike based on your location and elevation.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1338581006
Kenny G
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Joer0952
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Re: Rejet after muffler/air filter change
Reply #2 -
12/23/16 at 12:43:10
Thanks for the reference, now I just need 2 more, make that 1 more post till I can PM lol
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Kris01
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Re: Rejet after muffler/air filter change
Reply #3 -
12/23/16 at 15:43:00
I'm at sea level. Well, maybe 200-300 ft. above. See my sig below.
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There's no problem that a full tank of gas and a sunny day can't fix!
2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
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justin_o_guy2
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Re: Rejet after muffler/air filter change
Reply #4 -
12/24/16 at 13:14:26
The factory jetting changed down through the years to meet EPA regulations. Knowing the year model would help.
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The people never give up their liberties but under some delusion.- Edmund Burke.
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Joer0952
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Re: Rejet after muffler/air filter change
Reply #5 -
12/24/16 at 14:34:06
my s40 is a 2011
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Kris01
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Re: Rejet after muffler/air filter change
Reply #6 -
12/24/16 at 17:49:02
http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1098869040
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There's no problem that a full tank of gas and a sunny day can't fix!
2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
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Joer0952
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Re: Rejet after muffler/air filter change
Reply #7 -
12/25/16 at 01:10:24
Those are the jet sizes that come from the factory, since I am at sea level and I am changing the muffler and air filter I believe I will have to change those sizes, I just don't know what sizes to change them to.
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Yoshi
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Re: Rejet after muffler/air filter change
Reply #8 -
12/25/16 at 02:29:09
I'm in your location (same round about sea level height) I've tuned 3 Savages so far and I can tell you something,
52.5 pilot and 152.5 main were good for muffler like the dyna with a flat panel filter
55 pilot and 155 main were good with k&n cone filter and muffler like the Jardine but always feels rich
I like the look of the cone filter but it does nothing to the bike as far as hp but the muffler opens it up a bit (seat dyno)
One of my favorite setups was the Jardine open muffler and a panel k&n filter, i ran 52.5 (stock pilot) and 152.5 main
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Joer0952
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Re: Rejet after muffler/air filter change
Reply #9 -
12/25/16 at 06:22:31
Yoshi wrote
on 12/25/16 at 02:29:09:
I'm in your location (same round about sea level height) I've tuned 3 Savages so far and I can tell you something,
52.5 pilot and 152.5 main were good for muffler like the dyna with a flat panel filter
55 pilot and 155 main were good with k&n cone filter and muffler like the Jardine but always feels rich
I like the look of the cone filter but it does nothing to the bike as far as hp but the muffler opens it up a bit (seat dyno)
One of my favorite setups was the Jardine open muffler and a panel k&n filter, i ran 52.5 (stock pilot) and 152.5 main
Thank You for the reply, so I assume the best setup for me with a K&N panel filter and dyna muffler will be 152.5/52.5. I also read something about a spacers, what size spacer did you use?
Thanks,
Joe
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Yoshi
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Re: Rejet after muffler/air filter change
Reply #10 -
12/25/16 at 06:48:25
Half spacer or 2 washers
If you're interested I haveva used MAC exhaust for sale..
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Kenny G
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Re: Rejet after muffler/air filter change
Reply #11 -
12/25/16 at 08:03:01
#4 Machine Washers
Get brass or stainless steel.
ACE Hardware has them, and most any other hardware outlet will stock them.
Kenny G
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Kris01
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Re: Rejet after muffler/air filter change
Reply #12 -
12/25/16 at 17:16:29
The stock plastic spacer is equal to about 4? of the #4 washers. The less washers you use the richer your midrange will be.
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There's no problem that a full tank of gas and a sunny day can't fix!
2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
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Joer0952
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Re: Rejet after muffler/air filter change
Reply #13 -
12/26/16 at 11:17:38
Last question, I think I read somewhere that someone said that if you change the air filter/muffler it would be a good idea to change the vacuum petcock to the raptor 660 manual petcock. Is that true and, if so just out of curiosity, why?
Thanks
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verslagen1
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Re: Rejet after muffler/air filter change
Reply #14 -
12/26/16 at 11:40:04
Even with the stock setup, you can go up a long hill at full throttle and it'll cut out on you cause the vacuum drops enough not to open the petcock.
So with a more free flowing filter and/or exhaust, it doesn't take much to cause it to cut out on you.
Add in age factors and a leaky vacuum hose and it's a wonder it ever stays open.
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