Are the yamaha two strokes always hard starting

flavtfan

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Aug 28, 2007
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Re: Are the yamaha two strokes always hard starting

if you don't have a serious comment....why comment?
 
Joined
Jul 13, 2008
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Re: Are the yamaha two strokes always hard starting

On my 115 THE elec.choke cylinder was out of adjustment,not letting the butterfly flaps on the choke shut all the way when I pushed in the key to choke it.Try pulling out the manual choke on the front of the engine all the way and see what it will do.Mine fired right up when I done it.If you have every had any carb. work done in the past the tech may not have adjusted the elec.choke right when he put everything back together.
 
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rodbolt

Supreme Mariner
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Sep 1, 2003
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20,066
Re: Are the yamaha two strokes always hard starting

witrh the engine hood off check that the choke is staying engaged while cranking.
we see the occasional issue with the starter drawing so much current the solinoid cannot keep the choke closed.
we still dont have a model number just a spec sheet.
however for 07 the 150 carbed model was only made in one version.
set the throttle so when it starts its about 1500 RPM or so, hold the choke switch down while cranking.
but do check that the choke plates are being held shut while cranking.
 

flavtfan

Petty Officer 3rd Class
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Aug 28, 2007
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79
Re: Are the yamaha two strokes always hard starting

here are the numbers for my engine....

150 TXR
6G4 X 1019247

Where would these choke plates be located?
 

rodbolt

Supreme Mariner
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Sep 1, 2003
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20,066
Re: Are the yamaha two strokes always hard starting

the choke shutters are located in the carbs but the linkage can be obseved on the stbd side.
may take two people unless you remove the airbox.
also test the thermosensor, it controls some timing advance when cold starting and can create issues on rare occasions.
no the 150 TXR is not a hard starting engine yours happens to be broke,out of adjustment or the wrong starting procedure is being used.
I did have a customer who would advance the throttle,turn on the key,push the key in but as he went to start mode he released the key.
took me a month to finally get him to use the correct procedure.
 

drewmitch44

Lieutenant Commander
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Jun 26, 2005
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Re: Are the yamaha two strokes always hard starting

if you don't have a serious comment....why comment?


To keep your post near the top so people can help you. Its better than typing " Bump" and thats it in the reply. So there ya go.
 

flavtfan

Petty Officer 3rd Class
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Aug 28, 2007
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Re: Are the yamaha two strokes always hard starting

when i installed my fuel/water separator yesterday i cut the hose after the ball and before the ball and gas did not come out...is this normal? could there be a leak in there allowing the gas to settle back into the tank or would a leak cause the engine not to run as well? after the engine starts it's fine...starts right up with just a bump of the switch. it also takes close to 10 pumps to prime the bulb to make it firm.
 

flavtfan

Petty Officer 3rd Class
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Aug 28, 2007
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Re: Are the yamaha two strokes always hard starting

actually before i installed separator it took a lot of pumps it seemed to firm up the ball. checked it today after the install and the same thing...doesn't seem to want to firm up and it's like the gas is running back into the main fuel tank out of the engine or something. after a while it will finally firm up. i would think this has something to do with it not wanting to start very well until it's sucked enough gas up to line to run.
 

flavtfan

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Re: Are the yamaha two strokes always hard starting

Any more smart remarks i can get to keep my post at the top:cool:
 
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