We have available the Honda Workshop manual EFI trouble shooting guide , this gives comprehensive diagnostics procedures and Dr H Diagnostic system connection guide
Please download from the links below
BF250
BF225
BF200
BF175
BF150
BF135
BF130
BF115
BF100
BF90D
BF80A
BF75D
BF60A
BF50D
BF40D