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Old 08-24-2023, 05:19 PM   #7
db_moto   db_moto is offline
 
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Join Date: Sep 2021
Location: Indiana
Posts: 13
Quote:
Originally Posted by Bob Kelly View Post
I've hurd 2 issues for this on the RX4 one is the ECU they seem to have a problem and will be problematic in making spark on starting it will also miss periotically if your getting a miss every once in a while I would just buy a new ECU and swap them and see if that cures it.
fuel pumps not developing proper pressure and thuss the injectors don't work right
if you can put a pressure gauge on the injector line to see what the pressure is
not sure what is within specs but CSC would be able to tell you
..
Bob....

Bob, I have a new ECU (GoBoom tune) installed. Issue pre-dated the ecu replacement. I just changed the MAP sensor and checked the spark which seems strong. I'm still leaning towards a fueling issue. The bike runs and pulls without a hiccup once started. I've still been commuting to work on the bike. It takes 3 trs on the starter to get running. Priming the ignition multiple times makes no difference. I have no ability to check compression with the bike having a camshaft driven compression release and obscure 8mm spark plug thread.
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