Post by rdemilt on Jul 15, 2017 17:34:58 GMT -5
I installed the tachometer on the Honda metropolitan today, it runs up to 8800 or so, I even saw 9000 rpm a couple times during WOT acceleration. Everything levels off at about 34 mph with the max rpms at about 8500 + then i notice the rpms gradually decrease to around 7600- 7800 while maintaining 34 mph, no more gains. If i back off the throttle 1/4 turn i see the rpms rising again to nearly 9000. Any ideas whats going on ?
I don't feel its a jetting issue as the motor seems to be running well and I don't notice a lean surge. I have a 75 main jet that I will try again in the next few days and see what the tach reads, I had it installed a few weeks back and the scooter lost top speed maxing out at 32 mph. I went back to the 72 and my speed picked back up to 34 MPH. I have a new belt on order, I'm hoping the worn belt is scrubbing off some speed. Others I know with the same scooter are cruising a honest 38 to 42 MPH with no mods. Im looking for answers and ideas.
Thanks.
I don't feel its a jetting issue as the motor seems to be running well and I don't notice a lean surge. I have a 75 main jet that I will try again in the next few days and see what the tach reads, I had it installed a few weeks back and the scooter lost top speed maxing out at 32 mph. I went back to the 72 and my speed picked back up to 34 MPH. I have a new belt on order, I'm hoping the worn belt is scrubbing off some speed. Others I know with the same scooter are cruising a honest 38 to 42 MPH with no mods. Im looking for answers and ideas.
Thanks.
