Rareone
13-07-2008, 05:30 PM
http://www.ausfish.com.au/vforum/../yabbfiles/Templates/Forum/default/cheesy.gif Howdy fellow Ausfishers. I would like to get some information from you guys. I have a Tohatsu 2 stroke 50 HP oil injected. This motor has been great, never a problem until now. Problem is as follows :- Starts and runs great for about 10 mins out at just under full revs. About 4700rpm, full rpm is around 5100. Goes great but after about 10 mins slowly goes down to about half throttle. First time it happened I thought the vent on the fuel tank was closed. The motor is not hot, pumps plenty of water and the plugs are new and do not seem to be fouling up. When I stop for about 5mins and go again it does the same thing. The sensor for temperature overheating works fine and so to the alarm. No alarm is sounding when the problem is evident. Do you think it could be the "electronic BLACK BOX" or bad injection oil? Thanks guys, any advice will be appreciated Graham http://www.ausfish.com.au/vforum/../yabbfiles/Templates/Forum/default/grin.gif Thanks again