2011年6月12日 · I can not determine if my ecu is bad or my regulator. All of the grounds are good, I have 12 volts going to my fuel pump power lead. I nave checked against my enitire wire diagram and found no issues or breaks. Is there a test I can do to guarantee the ecu is bad or the regulators??? 1996...

2001 dt140 efi with ECU computer controller. No spark any cly. Everything tests fine so far (switches, shutoffs, fuses , coils ,wire etc). I'm down to the ECU. Seloc manual has no info that helps. Does anyone know how to test the ECU (engine control unit)? Want to test mine before replacing and...

2008年8月26日 · Re: '07 Merc 25 hp 4-stroke EFI - my experiences so far 1) The Mercury twist grip shift is the problem. You should consider doing away with it and converting to the front shift lever design.

2014年9月1日 · Is there a code that determines if the ECM is 100% working ? My 5.7EFI Throttle body has an alarm the my go on sometime and then a reduced speed will follow. This does not happen all the time.So far all systems were checked or replaced and I thought it was fixed. It ran great for 3 outings then...

2014年9月8日 · That motor is intended to use an alternator tach. The $92 Tohatsu unit is intended for in-dash installation. The ECU on the MFS25/30B can tell you its RPM and other vital information (hours, temp, alarms, etc.) through the data connect

2011年5月3日 · Re: Yamaha F115, ISC test ? Thanks a lot Symptoms are multiple: engine starts after 2s or 3s starter at 900rpm (700rpm before, started immediately), idle problems ( not stable and sometimes stops) and now a new problem: randomly engine starts with ignition advance (typical engine knocks) with smoke and idle not stable and dies.

2009年5月14日 · Hello fellow boaters. I am having some issues with my 2004 Yamaha F115TR (4-stroke) and could use some good advice. The motor came on a 2004 Sea-Pro 180cc that I bought last year. The only thing that was not stock on the motor was the prop (13 x 19 instead of the lower pitched 13 x 17). She ran...

2013年12月24日 · Re: Yamaha F115 Performance Tuning Firstly class is restricted to 1800cc / 115hp most are running Etec 115ho or 115 Pro Xs Optimax I am not a fan of either having mostly used Yamaha.