Question about 2003 Yamaha V Star 1100 Classic
Got feedback on adjusting the idle knob because bike keeps stalling. now, when is the right time to do it - assuming when it is warm? while it is running (if i can keep it running)?
Hi, Michael it should be noted I am not allowed to use the word "SCR*W" as Fixya considers it profane. The carburetor throttle shaft wheel has two cables the cable closest to the right side of the bike is the throttle cable and the one closest to the left side is the idle cable. Right about the middle between the two is the idle adjustment bolt. It faces out towards the air filter end of the carb . The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the bolt clockwise to increases idle speed and counterclockwise to decrease idle speed. If you have access to your air fuel mixture bolt you may adjust it as well if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the bolt clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the bolt, now back it out 2 full turns to establish a starting point start the engine and check the idle rpm's and adjust the idle bolt accordingly for 950-1050 rpm if necessary, adjust the A/F mixture bolt 1/4 turn at a time and let the engine settle for about 10 seconds, clockwise for a leaner mixture and counterclockwise for a richer mixture you are seeking the highest rpm your A/F bolt can acquire without going past 3 full turns from bottom then readjusting the idle bolt back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the A/F bolt all the way in then your pilot/low-speed jet is too big. Final adjustment should be made with a clean air filter mounted to the carburetor. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day. Star 1100 idle problems
OEM parts for Yamaha
Posted on May 09, 2016
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Posted on Jan 02, 2017
SOURCE: my 426 doesnt idle smoothly.
Replace Gold idle screw on the carb and then keep turning it clockwise till its revving high, Then slowly do it anti clockwise till its idling at a low RPM which you feel right or/and defined in the owners manual.
Posted on Aug 28, 2010
SOURCE: starts but takes a very
ColdI engines require a richer mixture to operate smoothly...so they have an enricher (aka choke).
If you are finding you need to keep the choke on longer.....you may have a lean mixture than normal.nother
Start by inspecting the carb and intake manifolds for any leaks (loose fittings....cracked hoses) that could be drawing in air, leaning the mixture.
Another common issue with bikes that have sat over winter...is plugged idle jets.....the fuel varnishes the tiny orifices in the carb. You could try a product like Seafoam in the fuel tank....run it abit to get the treated fuel in the carbs then let it sit overnight...allowing time for the chemical to work. Since the bike runs fine warm...this may clear things up for you.
Posted on Apr 05, 2011
SOURCE: yzf 250 carb settings not
Drain the carb float bowl. Condensation from the gas tank has probably made its way into the bowl. If that doesn't help, remove the carb then remove the float bowl and use spray carb cleaner to clean the interior of the carb. Spray into every opening you can find.
Posted on May 31, 2011
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