O.S. V-Spec needle settings
#1
O.S. V-Spec needle settings
Can anyone tell me what the factory carb settings(including mid range needle) are on a v-spec?
#2
the high is 3 turns out from fully closed, the low is extruding 0.5mm from the link body the mixture should not be touched its for very experience nitro engine tuners but it should be flush with the carb body. hope thi helps.
#4
Tech Initiate
how i must turn this valve(foto) is LSN or HSN the name? i don't know.An the needle valve of the other side near to oil tubes? i run 25% nitro.I can't found the right balance.
#5
NEEDLE SETTINGS: These are pre-set from the factory and require little or no adjustment (BS)
High Speed - 3 turns out from fully closed
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
http://manuals.hobbico.com/osm/21vzb-vspec-manual.pdf
High Speed - 3 turns out from fully closed
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
http://manuals.hobbico.com/osm/21vzb-vspec-manual.pdf
#6
Tech Addict
iTrader: (32)
just make sure you have same carb.
there's 21C, 21J, and 21JS. they're all little different.
I believe this is for 21C and 21J, I use this setting for both my speed, and one has 21C and other has 21J
HSN 3 turns out from full closed
MID 1 turn IN from flush with caburetor body
LSN Flush with Ball link body
HSN needle is by the fuel intake,
LSN is on the sliding carb
MID is on the opposite side of the LSN
only setting I touch is HSN.
there's 21C, 21J, and 21JS. they're all little different.
I believe this is for 21C and 21J, I use this setting for both my speed, and one has 21C and other has 21J
HSN 3 turns out from full closed
MID 1 turn IN from flush with caburetor body
LSN Flush with Ball link body
HSN needle is by the fuel intake,
LSN is on the sliding carb
MID is on the opposite side of the LSN
only setting I touch is HSN.
Last edited by devilchrist; 07-09-2009 at 07:08 AM.
#7
Tech Addict
iTrader: (32)
NEEDLE SETTINGS: These are pre-set from the factory and require little or no adjustment (BS)
High Speed - 3 turns out from fully closed
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
http://manuals.hobbico.com/osm/21vzb-vspec-manual.pdf
High Speed - 3 turns out from fully closed
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
http://manuals.hobbico.com/osm/21vzb-vspec-manual.pdf
#8
ok
#9
Tech Initiate
I tried tuned the afternoon.when I close the throttle after 2 seconds is the correct idling rpm (idle open 0.8) why? should i close the meetering needle a little?
#10
Sorry dude - - - - WHAT?
#12
Tech Elite
iTrader: (24)
Sorry to bring up an old thread, but the V-Spec 21J carb settings are confusing me. I tried for about 2 hours today just to get a running tune without success. I have tried multiple sources to try to get the default settings for the needles.
In this thread, devilchrist states the correct position for the needles is
According to token, the answer is:
Then, in this other thread post here, jpalessi says:
Meanwhile, the manual that came with my V-spec says:
Then, the online manual here, says:
So the question is: which is actually correct? The only thing every source agrees on is the HSN needs to be 3 turns out from closed.
I am seriously about to send this carb back to O.S. or something and pay to have it properly setup again. This is just getting frustrating.
In this thread, devilchrist states the correct position for the needles is
HSN 3 turns out from full closed
MID 1 turn IN from flush with caburetor body
LSN Flush with Ball link body
MID 1 turn IN from flush with caburetor body
LSN Flush with Ball link body
High Speed - 3 turns out from fully closed
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
Throttle Stop Screw - 1/2 turn out from fully closed
Mixture Control Valve (low speed) - Flush with indentation on screw head pointing at 2:00
IDLE: 1 full turn (from just fully closed)
LSN: 4 full turns from closed
MRN: 3-3/4 turns from closed (flush) 10 o'clock
HSN: 3 full turns from closed
LSN: 4 full turns from closed
MRN: 3-3/4 turns from closed (flush) 10 o'clock
HSN: 3 full turns from closed
HSN - 3 turns in from closed
LSN - 0.5mm beyond (out from) ball link end
MSN - flush
LSN - 0.5mm beyond (out from) ball link end
MSN - flush
HSN - 3 turns in from closed
LSN - flush w/ ball link end
MSN - 1 turn in from flush
LSN - flush w/ ball link end
MSN - 1 turn in from flush
I am seriously about to send this carb back to O.S. or something and pay to have it properly setup again. This is just getting frustrating.
#13
bump