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Old January 14th, 2018, 09:12 PM   #1
Tylorwashere
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What size pilot jets are you guys running?

Currently have size 38, it is a pain to start in the summer, and I don't ride in the winter, has anyone solved this issue with larger pilot jets?
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Old January 14th, 2018, 09:41 PM   #2
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Originally Posted by Tylorwashere View Post
Currently have size 38, it is a pain to start in the summer, and I don't ride in the winter, has anyone solved this issue with larger pilot jets?
I believe a #38 is stock for a 2005. My 2008 is supposed to have a #38 also but I haven't verified that. I have no starting problems on a #38 pilot. Maybe your problem is elseware?

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Old January 14th, 2018, 09:44 PM   #3
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I believe a #38 is stock for a 2005. My 2008 is supposed to have a #38 also but I haven't verified that. I have no starting problems on a #38 pilot. Maybe your problem is elseware?

Bill
Possibly, my carbs were spotless on the inside so I think I'm gonna try jets first. It doesn't really have a problem starting, just staying running without full choke till its warm
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Old January 14th, 2018, 10:09 PM   #4
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Are your valve clearances in spec?
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Old January 14th, 2018, 10:09 PM   #5
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Possibly, my carbs were spotless on the inside so I think I'm gonna try jets first. It doesn't really have a problem starting, just staying running without full choke till its warm
I have to roll off my choke gradually until the engine has run a few minutes. I have installed a cooling system modification that will bring my coolant temperature up to about 120 degrees in two minutes. That's not the entire cooling system or engine, just the coolant in the water jacket surrounding the engine block/cylinders. After about two miles of riding my thermostat starts opening and the entire cooling system gets up to temperature.

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Old January 14th, 2018, 10:42 PM   #6
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40's, but i have pods.
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Old January 14th, 2018, 11:29 PM   #7
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The bike has absolutely zero issues starting in brand-new OEM condition with the exact jets you have. Your difficulty starting would have to do with some non-factory configuration or condition. Most likely uncleared fuel circuits. If the bike's not running perfectly like new, then the carbs aren't perfectly cleaned, simple.
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Old January 14th, 2018, 11:39 PM   #8
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The bike has absolutely zero issues starting in brand-new OEM condition with the exact jets you have. Your difficulty starting would have to do with some non-factory configuration or condition. Most likely uncleared fuel circuits. If the bike's not running perfectly like new, then the carbs aren't perfectly cleaned, simple.
All circuits are clear, floats level, and everything looks as it should
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Old January 15th, 2018, 08:03 AM   #9
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have you set the pilot screws, each cylinder, for highest idle, best response
set with engine fully warmed (after a ride) ??
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Old January 15th, 2018, 08:42 AM   #10
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One of our Ninjas was running pods and a leaky stock exhaust with stock 38s.

Never had any starting issues, even in cold (<40F) temps.

If the idle mixture is set correctly there shouldn't be any starting problems unless there are other issues (sync, valves, restrictions, enrichener issues, etc).
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Old January 15th, 2018, 12:55 PM   #11
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have you set the pilot screws, each cylinder, for highest idle, best response
set with engine fully warmed (after a ride) ??
Yeah, I played with it for a good hour one day, it runs great when it's warm, just getting warm is the hard part
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Old January 15th, 2018, 02:03 PM   #12
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What is vacuum-level in lines that should have vacuum?
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Old January 15th, 2018, 02:35 PM   #13
Tylorwashere
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What is vacuum-level in lines that should have vacuum?
Not sure, I don't have a vac gauge
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