I finished a tear down to frame motor, wiring and reassembly of an 87 VR I bought on ebay.
The bike is on the road, looks and rides great :12101:but........ I was floored by the poor fuel milage.
When I reassembled the bike I replaced the boost sensor as it was fubar. I found somewhere along the line a line restrictor was put on the vac line to the sensor.I put it back in at the same time as the swap. Had never seen one on other VRs though.
Fuel mileage was about 20 mpg:confused07:. Thinking about the work done, couldn't find an issue. Pulled off the line restrictor and now am about 43mpg with better power curve. Why the radical change in mileage and performance with it out ?
Can't find restrictor in any parts listings so, for now it's in the box of parts I don't figure need to be there:soapbox: