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Old May 1st, 2010, 04:33 PM   #1
SpYd3r05
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Cold Start issue

I have an 03 with 8500 miles, out side its been between 60-90f. I have a hard time getting it started while it is cold... After the motor gets warm it will recrank fine. I have, Changed oil (mobile clean 5000 10-40),Cleaned air filter, ran seafoam, Replaced fuel filter, replaced plugs, Adjusted the air/fuel mix to what seems to be near correct... fresh gas, Cleaned carbs,... tried boosting from a good car battery just to check cranking power. Throttle nor choke seem to make much of a difference.... Even after i get it to crank it still wants to die out until warm... Idle knob is adjusted to approx 1700 rpm while warm... Thanks for all your time
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Old May 1st, 2010, 04:41 PM   #2
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are you using full choke?
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Old May 1st, 2010, 04:49 PM   #3
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tried none full half and every where in between... it was working fine... then seemingly i got a bad batch of gas (my thought of this time) but that gas is gone, fresh in...
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Old May 1st, 2010, 04:58 PM   #4
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My thoughts are that the pilot jet is clogged, but the bike should run if the choke is used on a cold start. is the choke cable adjusted properly at the carbs?

try seafoam again by pouring some directly into the fuel hose so it can be drawn full strength into the carbs. let it sit overnight with that high concentration in the bowls to give the seafoam a chance to break down the goo and try starting it again in the morning.
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Old May 1st, 2010, 05:04 PM   #5
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Kelly, Remember the good old days when we did not have to worry about "goo" in our gas. Boy, have they screwed up fuel these days!
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Old May 1st, 2010, 05:04 PM   #6
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I pulled the carbs soaked everything that could be in carb cleaner for a few hours...
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Old May 1st, 2010, 05:07 PM   #7
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are you saying you just did this a few minutes ago or before the problem started?

when you soaked them, did you remove all the jets and did you blow out the passages after the soak?
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Old May 1st, 2010, 05:08 PM   #8
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Quote:
Originally Posted by Sailariel View Post
Kelly, Remember the good old days when we did not have to worry about "goo" in our gas. Boy, have they screwed up fuel these days!
You wouldn't be referring to "Ethel" at $0.25 a gallon would you
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Old May 1st, 2010, 05:09 PM   #9
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i did it after the problem started... pulled and cleaned twice.... problem has been going on for like 4 weeks now
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Old May 1st, 2010, 05:23 PM   #10
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I'm Probably going to pull carbs again and soak with seafoam and carb cleaner and see... any other suggestions to look into while i have carbs off?
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Old May 1st, 2010, 05:31 PM   #11
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remove and clean the jets and passage ways.

unless you do this, your not really cleaning a carb. did you do this previously?
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Old May 1st, 2010, 05:45 PM   #12
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yes
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Old May 1st, 2010, 05:49 PM   #13
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did you look down the middle of the jets to make sure they were cleaned out? you should be able to see a nice clear hole down the middle.

did you blow out the passage ways w/ compressed air? were you able to feel air passing through to the little exit holes in the carb throat area when you blew from the removed pilot jet passage??

http://faq.ninja250.org/wiki/How_do_...n_the_carbs%3F
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Old May 2nd, 2010, 03:58 PM   #14
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did you look down the middle of the jets to make sure they were cleaned out? you should be able to see a nice clear hole down the middle.

did you blow out the passage ways w/ compressed air? were you able to feel air passing through to the little exit holes in the carb throat area when you blew from the removed pilot jet passage??

http://faq.ninja250.org/wiki/How_do_...n_the_carbs%3F
Check just cleaned everything again, air through holes... holes for jets all seem clean.. soaked for around 12 hrs in a mix of seafoam and carb cleaner...
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Old May 2nd, 2010, 03:59 PM   #15
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it seems to want to hessitate starting but it never will regardless of choke or throttle position.. checked choke seems to be actuating everything..
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Old May 2nd, 2010, 05:52 PM   #16
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Adjusted the air/fuel mix to what seems to be near correct...
what does that mean?
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Old May 3rd, 2010, 01:38 AM   #17
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it means the last owner messed with it but its back to 2.5
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Old May 4th, 2010, 02:54 PM   #18
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Just cleaned the gas tank completely and filled up with new gas...would valve adjustment cause a situation that would not start but hesitate a little like it wants to?
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Old May 5th, 2010, 11:26 AM   #19
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AND FIXED!!!!.. turns out it was the valve adjustment... one intake was way loose.... and the other three really tight... *shrug* how that happened... but it starts right up now Thanks for all your help
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Old May 5th, 2010, 12:24 PM   #20
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Way to go, Matt!
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