I see my manual says Bosch YR5LDE. Off to search fora for spark plug fact and fiction. Any other pointers gratefully received.
Nippy Norman says NGK DCPR8EKC. Manual says Bosch. Who are Denso when they're at home?
I see my manual says Bosch YR5LDE. Off to search fora for spark plug fact and fiction. Any other pointers gratefully received.
Used to be Nippondenso till 1996 when it was shortened to Denso.Nippy Norman says NGK DCPR8EKC. Manual says Bosch. Who are Denso when they're at home?

Any twin cams had it done / or having it done can they post reviews, would be appreciated.

I had my 2010 twin cam done.
Best thing I've done to any bike really. Got rid of the annoying vibration between 4000 and 5000 rpm. Bike much much smoother throughout the rev range. Power up from 81 bhp at rear wheel to 101.
Fuel consumption has gone from 48mpg to 52.
What's not to like![]()
Just spoke to Geoff about Denso plugs, he says they are just good plugs, Iridium or otherwise... also, the ECU is Denso, it may say Bosch on the outside, but inside it's Denso!
Roll on Tue 24th July (remap day)![]()
Went yesterday - great day - Geoff is full of interesting stories !
My 2010 GSA went from 85.72bhp, 68.81Ft/lb to 105.96bhp, 80.15Ft/lb.
The graphs of fueling were even more impressive. It should be at around 13 A/F ratio. Mine was initially miles too lean - between 15 and 19. After remap was between 12.7 and 13.5.
Immediately noticeable improvement in torque and so much smoother.
Felt like money well spent.
Is it a twin cam ? I'd be interested to see the graph for the range that increase is spread over
I had my 2010 twin cam done.
Best thing I've done to any bike really. Got rid of the annoying vibration between 4000 and 5000 rpm. Bike much much smoother throughout the rev range. Power up from 81 bhp at rear wheel to 101.
Fuel consumption has gone from 48mpg to 52.
What's not to like![]()
And the after graph -
