Thread: 2019 ec300 fuel
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  #25  
Old 10-24-2018, 03:53 AM
taylor146 taylor146 is offline
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Join Date: Mar 2013
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Hi
I've had a 18 300 for nearly a year now and have struggled to get the bike running right with UK spec fuel(99 shell v max). Currently running near perfect with NEDH 42p and 178 main@ 50:1. More importantly though using S3 head with black insert 13:1 instead of standard head 13.85:1
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