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Old 06-27-2021, 02:58 PM   #1
Treewhisperer2017   Treewhisperer2017 is offline
 
Join Date: Jun 2021
Posts: 1
Dennis from Sachse Tx here

Just got my Zircon Fox with GY6 150cc running. took about 8 hrs. runs really well. Starts easily after it's warmed up. Have to prime carb when she's cold.
Update on hard to start cold and hard to idle.
My intake valve was set to less than .0015 inch.
Exhaust was set to .002
Adjusted to .004 and .005
Motor still would not start when cold. Had to prime to get started.
I replaced the 10 year old carb with a performance carb fro Go Power Sports with a larger jet. Moto starts immediately and definitely has better performance.



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Last edited by Treewhisperer2017; 07-04-2021 at 11:28 AM.
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Old 06-29-2021, 01:31 PM   #2
richardthescooter1   richardthescooter1 is offline
 
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Join Date: May 2011
Location: Nanty Glo, Pa.
Posts: 163
welcome to our forum glad to have you. when you get time shoot some pics our way
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Old 06-30-2021, 01:43 AM   #3
Admin   Admin is offline
 
Join Date: Apr 2011
Location: NY
Posts: 994
Welcome!



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