...at WOT at max speed, it only registers 4200 rpm, which seems to be half what it should. However, at idle, it shows at about 1800rpm which feels like there's a slight grab on the clutch. I'm wondering if maybe I should set it to 2 pulses per rev? Any ideas?
Try futzing around with the pickup wires. If the wraps of wire you put on to make the pickup are nearby an engine case or metal, try moving the pickup to a free area of wire. Experiment some with turns and try a different ground. Most of all, send the company some email, they may have knowledge about Honda scooter installations. After all, there's a bazillion of them around
-- The mfg' instructions --
'Installation: Unpack and attach the unit to a location where it can be easily read. Uncoil the shielded wire and wrap the black wire around the engineÔÇÖs spark plug wire 3 or 4 time. The white wire is a ground wire and must be attached to the engineÔÇÖs frame or any other ground.
'If you have any questions about our product, please feel free to contact us at
info@andytach.com.Our customer service desk is available 7 days a week and we commit to respond within 48 hours.'