Join Date: 04-16-2019
Location: Worcester, England
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Re: CBR1000RR SP1 issues
High John and welcome.
I am extremely active on another Honda forum and can honestly say I have never heard of such problems with the 2017 - 19 model. I have the 2018 SP2 so I fully understand the machine you speak of.
I have always run on 'premium' or high octane ethanol-free fuels. Pinging can derive from sub-standard fuels, but it will also occur as a result of an incorrect timing set up via the ECU.
So far as the cam chain, there is no proper reason for it to be loose, BUT is an easily rectifiable solution.
I would not have much faith in your dealer. I would again ask the chief mechanic to investigate, and if met with a refusal, immediately request to see the dealer principle, AND/OR phone/write to your regional Honda Headquarters.
Sorry that I can not be of greater help.
2018 CBR1000RR SP2 / 2004 CBR1000RR / 2003 CBR954RR / 2001 CBR929RR (Erion Racing Edition)
1985 Honda VF1000R / 1985 Honda NS400R
2007 MV F4 1000R / 2020 Daytona 765 Moto 2 Replica (on order)