Hi people, chanced upon this board and found much useful information and knowledge here. Maybe someone can help me out?
Bike: CBR 929
Mods: Stock standard (boring)
Mileage: 50,000km (about 31,000 miles)
Problem: used to be able to travel about 260km per tank before reserve light comes on when commuting. Over the last 3 years, this decreased to 240km, then 220km, then 190km two weeks ago.
My bike is stock, apart from a K&N air filter. Throttle bodies have been synchronised periodically, and Iím on my 3rd set of plugs. Inspection of the plugs does not show signs of a rich mixture. Iíve been using the same brand of 98 octane petrol, and my riding style and environment (traffic conditions) has not changed over the years.
The manual says poor fuel economy may be due to a pinched fuel tube or faulty pressure regulator. The fuel tube looks just fine, but I do not have access to a fuel pressure gauge, so is there any way of finding out the problem short of getting a new pressure regulator?
Dealers in this part of the world suck big time. Most have no idea how to properly service/diagnose a big EFI
4 cylinder bikeÖ