Question about 2004 Skyteam ST 100-6

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Backfire after i warm my bike up and push the choke in and when i rev it

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The bike will like backfire/misfire and if i hold the throttle steady it will backfire like 2 times again....and it does this while riding at a steady pace too...it just started it didint do it a week ago. i didnt change anything except a new air filter..fuel screw is 2.5 turns out . the timing valve clearances and everything is in spec. is this a sympton of it being rich or lean? and it doesnt do it on chokeYes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...,,,

Posted on Nov 10, 2008

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1 Answer

High revs cold


manual choke lever raises the engine reves to warm the engine by lifting the needle height and making the mixture rich, warm the bike up before moving off.

Jan 24, 2014 | 2011 Yamaha DT50R

1 Answer

When to adjust idle


If you can keep the bike running long enough to get it warm with and with no choke then that is when you should adjust the mixture,
First though start by adjusting it cold so the screw is set at about 1.5-2 turns out then run till warm set idle at around 1500 revs and adjust until it just starts to lift the revs then back off a quarter turn

May 02, 2013 | Yamaha Motorcycles

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I have a 1995 kawi 750 and at idle she runs great but as soon as u go to ride and get to 5000 to 6000 rpm it will just die but if u push in this black little button under the clutch or play with it a bit...


triple check choke? Is it staying on once warm? Mine was cable and siezed and choke on to start from cold, when it warmed up it turned out choke was stuck half on. Like if you ride then whack choke on it stalls?
ZX7r

Mar 15, 2012 | 1995 kawasaki ZXR 750

1 Answer

I just bought a 1999 Honda Aero and it did not come with an owner manual. Where is the choke on this bike. Is there any free down loads with "getting started" on the Honda Aero/shadow of this...


The choke is on your left hand handle bar, it is the black slide down lever. 1. Push the lever inward to choke the bike 2. give the throttle two turns and start the bike. ( do this so you don't drain your battery, even with a new battery you need give the bike the gas to start or you will have to recharge the battery) You will hear the engine change pitch when it warms up, push the choke upwards and the bike should idle on its own.

Mar 05, 2011 | 1999 Honda VT 1100 C3 Shadow Aero

1 Answer

I have a 2003 ttr225 I can get the bike to start with the choke on ihave to let it warm up for an extremly long time before I can push in the choke . once the bike is warm and I hit the throttle hard ,...


Sounds like the idle circuit in the carb is restricted. The engine is running on the choke only. When the engine reaches a certain temp the fuelthat does get is more readily burned allowing you to back off the choke. The choke probsbly can't be completely opened? right? Fuel quality is also something to consider Oil content in fuel affects combustion temps and volatility. _good luck_Ned_



Nov 16, 2010 | 2003 Yamaha TT-R 225

1 Answer

Won't idle until it is warmed up


Depending on the type of intake system, if it's a normally carburettored bike, there is an air mixture screw on your carby(s). Set this screw at one and one half turns out from being screwed to stop. Run bike till it is warm and set IDLE screw or throttle stop at optimum idle revs. Without using choke or throttle, turn the air mixture screw slowly in or out till revs build to highest level. Reset idle screw or throttle stop to set revs back down to optimum level as before. If this does not cure your problem, depending on if it's a 2 or four stroke, single or multi cylinder engine your problem may be one of many from fuel ratio, valve rocker clearance, ignition, plug range etc....specify make/model for proper info.
Cheers

May 19, 2010 | Motorcycles

1 Answer

Won't idle down after it warms up


after the bike has warmed up, then reset the idle to approx 1000rpm. then see what happens when its cold. some bikes are cold blooded and the use of choke is necessary for a bit, at least until it warms up...

May 24, 2009 | 2007 Yamaha Road Star

1 Answer

Choke


The choke is closed (pushed away from you) to start the bike. When it has warmed up the lever can be pulled back toward you opening the choke back up.

Apr 13, 2009 | 2001 Hyosung RX 125

1 Answer

1984 aspencade starts w/choke and revs up, runs smooth. Take off


My 'wing won't run unless it has been warmed up some. I would suggest that you r&r your carbs to make sure the jets in the bottom are working correctly. They tend to get plugged up, especially after sitting & the aluminum flaking off inside... Rick

Apr 05, 2009 | 1982 Honda GL 1100 Aspencade Gold Wing

1 Answer

Starting?


pull the choke out fully, start the engine, push choke into halfway if it will still run, let it warm for a min or 2. ride it, it may need choke still for about a mile. but thats trial and error, try pushing it in, you will find out right away if the bike still wants it.
i have an owners manual on this bike if you need a copy e-mail me vision-tech@comcast.net

Mar 27, 2009 | 1981 Yamaha XJ 650

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