what is this? - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

JDiablo · 06-09-2012, 07:11 PM

Can someone please tell me what this knob does, the one circled in yellow

yfzxsocal · 06-09-2012, 07:15 PM

its to adjust your idle

dune_running_450 · 06-09-2012, 07:18 PM

X2 adjust idle, turn it right to turn up idle turn left to turn it down when adjusting turn alittle bit either way you need to then stab the throttle and listen to it when it comes back down

JDiablo · 06-09-2012, 07:36 PM

Well i was messing with that today and it made my quad rev higher and lower on top of my other problem....,I think my throttle position sensor is going crazy......it seems like i start my quad out it starts out @ like 3rpm,i give it slight throttle and revs wayyy to high,what else can that be from on the carb?

JDiablo · 06-09-2012, 07:42 PM

Thank you for your answers btw

nobog08rider · 06-09-2012, 10:23 PM

Could be you just got the idle set way to high.Start it up and try turnin the idle down whens it runnin

JDiablo · 06-10-2012, 12:41 AM

I tried that already doesn't make to much of a difference. I was reading that if you arent careful when removing the throttle cable that you can mess up the tors settings and it seems like more of that route then just a idle ajustment. Thank you,John

JDiablo · 06-10-2012, 12:56 AM

That and or the TPS as well . Ohhh the agony of a non operable quad

JDiablo · 06-10-2012, 01:09 AM

Important post for YFZ450 owners! - Yamaha ATV Forum

joshduke · 06-10-2012, 07:41 AM

You dont even need it to run. Just unplug it for now, see if anything changes. Do you have freeplay in your throttle cable? You should have some. Any air leaks between carb and motor? What pilot jet in there? Slide in the right way?

JDiablo · 06-10-2012, 09:20 AM

Running a 48 pilot 165 main going to check over all that again today and try to
Use process of elimination. It just sounds crazy high when I start it give it gas and revs even higher then dies on me all of this has opens in 2 seconds

JDiablo · 06-10-2012, 09:26 AM

Also unPlugged the two wires from the carb and got the same result uhhhh fcr problems

SeniorTaco · 06-10-2012, 09:27 AM

Just from my brief read through it sounds like the tors is acting up...

JDiablo · 06-10-2012, 10:00 AM

i just ordered a clymers manual to give me further reference points,but from reading some of these posts on here some of you are quite knowleadable and im hoping that someone can help me out.....Now what do you do about the TORS acting up? ahhh was suppose to go to Rausch tomorrow but that doesnt look like it is happening anymore

SeniorTaco · 06-10-2012, 10:09 AM

Do a search on here. You can easily bypass it.

JDiablo · 06-10-2012, 10:13 AM

thats all ive been doing the passed couple of days.....Now when bypassing the TORS from the carb does that automatically cancel out the TPS as well or will i have to bypass the TORS and then the TPS directly from the thumb throttle?

SeniorTaco · 06-10-2012, 10:19 AM

The tors bypass is the connection by the carb. Unplug the two pin connector and loop a wire on the connector on the harness side, not the one going to the carb.

JDiablo · 06-10-2012, 10:34 AM

Motion Pro - YFZ450 Switch Elimination Coupler Assembly just ordered this

SeniorTaco · 06-10-2012, 10:36 AM

Yes, but John take two min and do it yourself to see if that's it...........

JDiablo · 06-10-2012, 10:39 AM

alright so from the harness side of the two pin connector,jump the two together then thats what your saying? from the one pin to the other ? Im fairly handy when it comes to stuff,just need a good sense of direction where to go and thank you I appreciate everyones help

06-09-2012, 07:11 PM	#1 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	what is this? Can someone please tell me what this knob does, the one circled in yellow Attached Thumbnails

06-09-2012, 07:15 PM	#2 (permalink)
yfzxsocal Senior Member Join Date: May 2010 Location: SoCaL Posts: 229	its to adjust your idle __________________ 06 YFZ 450 SE...Venom 12.25:1 Piston, Ported Head, Sredrum 42mm Carb, FCI, Cam Mod, Alba Pipe, 07 Oil Upgrade, YZ Clutch, CV4 Hoses Laeger +2 Standard Travel A-arms, Fox Evol Floats, Fox Podium, Houser Linkage, Alba +4 Axle,CCP Stabilizer, Alba Nerfs, Lonestar +2 Stem, Pro Taper Bars, DWT Wheels

06-09-2012, 07:18 PM	#3 (permalink)
dune_running_450 Senior Member Join Date: Dec 2010 Location: Michigan Posts: 418	X2 adjust idle, turn it right to turn up idle turn left to turn it down when adjusting turn alittle bit either way you need to then stab the throttle and listen to it when it comes back down __________________ 2006 YFZ - 95mm cp 13:75:1 piston,Venom / hp ported head, mmad warpspeed exhaust cam cam mod, hot cam stage 3 intake cam,dynatek programmable cdi, hot rods crank, oil mod, FCR 42mm DRG bored carb, FCI intake, 20 shot boondocker nitrous kit, Dasa classic pipe, direct drive lock up, Hinson full clutch, precision stabilizer, tag metals anti vibe clamp stem and bars.

06-10-2012, 07:41 AM	#10 (permalink)
joshduke Senior Member Join Date: Oct 2007 Location: hellertown, PA Posts: 240	You dont even need it to run. Just unplug it for now, see if anything changes. Do you have freeplay in your throttle cable? You should have some. Any air leaks between carb and motor? What pilot jet in there? Slide in the right way? __________________ 07 xc 165m 42p, lid off, sparks pipe, ars fx suspension, precision stabilizer, douglas wheels,

06-10-2012, 09:27 AM	#13 (permalink)
SeniorTaco Senior Member Join Date: Mar 2012 Location: Charleston, South Carolina Posts: 3,259	Just from my brief read through it sounds like the tors is acting up... __________________ Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME

06-09-2012, 07:36 PM	#4 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Well i was messing with that today and it made my quad rev higher and lower on top of my other problem....,I think my throttle position sensor is going crazy......it seems like i start my quad out it starts out @ like 3rpm,i give it slight throttle and revs wayyy to high,what else can that be from on the carb?

06-09-2012, 07:42 PM	#5 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Thank you for your answers btw

06-09-2012, 10:23 PM	#6 (permalink)
nobog08rider Member Join Date: May 2012 Location: Rock Springs, Wyo Posts: 47	Could be you just got the idle set way to high.Start it up and try turnin the idle down whens it runnin

06-10-2012, 12:41 AM	#7 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	I tried that already doesn't make to much of a difference. I was reading that if you arent careful when removing the throttle cable that you can mess up the tors settings and it seems like more of that route then just a idle ajustment. Thank you,John

06-10-2012, 12:56 AM	#8 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	That and or the TPS as well . Ohhh the agony of a non operable quad

06-10-2012, 01:09 AM	#9 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Important post for YFZ450 owners! - Yamaha ATV Forum

06-10-2012, 09:20 AM	#11 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Running a 48 pilot 165 main going to check over all that again today and try to Use process of elimination. It just sounds crazy high when I start it give it gas and revs even higher then dies on me all of this has opens in 2 seconds

06-10-2012, 09:26 AM	#12 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Also unPlugged the two wires from the carb and got the same result uhhhh fcr problems

06-10-2012, 10:00 AM	#14 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	i just ordered a clymers manual to give me further reference points,but from reading some of these posts on here some of you are quite knowleadable and im hoping that someone can help me out.....Now what do you do about the TORS acting up? ahhh was suppose to go to Rausch tomorrow but that doesnt look like it is happening anymore

06-10-2012, 10:09 AM	#15 (permalink)
SeniorTaco Senior Member Join Date: Mar 2012 Location: Charleston, South Carolina Posts: 3,259	Do a search on here. You can easily bypass it. __________________ Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME

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06-10-2012, 10:13 AM	#16 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	thats all ive been doing the passed couple of days.....Now when bypassing the TORS from the carb does that automatically cancel out the TPS as well or will i have to bypass the TORS and then the TPS directly from the thumb throttle?

06-10-2012, 10:19 AM	#17 (permalink)
SeniorTaco Senior Member Join Date: Mar 2012 Location: Charleston, South Carolina Posts: 3,259	The tors bypass is the connection by the carb. Unplug the two pin connector and loop a wire on the connector on the harness side, not the one going to the carb. __________________ Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME

06-10-2012, 10:34 AM	#18 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	Motion Pro - YFZ450 Switch Elimination Coupler Assembly just ordered this

06-10-2012, 10:36 AM	#19 (permalink)
SeniorTaco Senior Member Join Date: Mar 2012 Location: Charleston, South Carolina Posts: 3,259	Yes, but John take two min and do it yourself to see if that's it........... __________________ Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME

06-10-2012, 10:39 AM	#20 (permalink)
JDiablo Senior Member Join Date: Jun 2012 Location: NEW JERSEY Posts: 734	alright so from the harness side of the two pin connector,jump the two together then thats what your saying? from the one pin to the other ? Im fairly handy when it comes to stuff,just need a good sense of direction where to go and thank you I appreciate everyones help