Suzuki Discussions about Suzuki ATVs.

WHAT JET ARE YOU RUNNING IN YOUR Z400

Old Jun 25, 2003 | 01:21 AM
  #1  
QUADMAN650's Avatar
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

HMF SAID THAT A 175 MAIN WAS WHAT WE NEEDED WITH THE LID OFF AND OF COURSE THE HMF SLIP-ON


ISEN'T THAT WAY TO RICH?


TEXAS AREA NOT SURE HEIGHT ABOVE SEA-LEVEL

WHAT ARE YOU RUNNING FOR A MAIN IN YOUR Z ?
 
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Old Jun 25, 2003 | 01:40 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

i just put on a full yoshi and prodesign filter with the lid off...i've got a 160 main...it seems to be fine
 
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Old Jun 25, 2003 | 04:22 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

MBRP slip-on, lid off w-Uni filter & Outerwares, 155 main about 2 1/2 turns out on mixture screw.
 
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Old Jun 25, 2003 | 04:27 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

Pro design, K&N, Lid off, Yoshi Slip-on, 155 main jet seems to be doing me just fine
 
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Old Jun 25, 2003 | 10:25 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

I'm running a 170mj. 4th clip on the needle and a 25 pilot. Still have a bad spot about 1/4-1/3 throttle at just the right rpm i'm working out. I'm going to try a 175mj as it still sounds like it's going lean up top. Pulls like a freight train though.

Engine mods:
Muzzy full exhaust
Uni Filter and CFM airbox
Ported/polished head 5 angle valve job
Hot Cams Stage 2
DRZE head gasket

 
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Old Jun 25, 2003 | 11:52 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

165 main , 33.5 pilot , 3 turns out , needle in lean position .......CT full pipe , no lid , no snork
 
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Old Jun 26, 2003 | 10:29 AM
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

160 mj, needle on 3rd clip
I have a slight dead spot around 1/8 to 1/4 throttle
25 and 27.5 pilot jet on order, I tried a 32.5 and it was way to rich. (22.5stock)
 
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Old Jun 26, 2003 | 04:04 PM
  #8  
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Default WHAT JET ARE YOU RUNNING IN YOUR Z400

150mj, Alba needle 4th slot down, 25 Pilot jet, 3 turns out on pilot screw, Uni filter, TPI airbox vent, Snorkle baffle removed, drilled out muffler end cap. Gonna try a 155mj this weekend. I also removed that plastic baffle that is attached to the under side of the lid and screen behind the air filter.

Oh and it runs fricking awesome! not bad for $60.
 
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