Tweet
Took my boat out yesterday and it seemed to run fine. But when I tried to use the trim it would kill the engine. Engine would run fine and tilt/trim worked great but not when engine running. Engine is a 70 tlrp. Does the tilt work off of the charge current from engine? or does it come directly from the battery? I had problems with the engine when I bought it it had a charred lighting coils/cdi I replaced all of the burned parts and also put in a new rectifier. This was the first trip I have taken with it and with the tilt killing the engine Iam starting to think it had a part in the burrning of ihe cdi and coils possably a short in the wiring or the controls. Is there a place on line I can get a wiring digram for 703 controls and a 70hp yamaha tlrp? Has anybody else had this problem?? Help please Wife is talking about selling boat for scrap. Thanks much Brody
-
-
ha!
When tilting outboard to inspect problem tonight smoke currled out of the cdi and burned it out, With key off. could a ground shared with the tilt silonoid and cdi cause a back feed of power to burn out cdi? The power tilt on handel works with key in off position but was dissconnected at the y going to silonoids at the time and I was using the switch mounted on the side of engine to try eliminate a possable short that could have been in the wiring harrness. How can the cdi even have power to it with key off? Why would the two very seperate systems be connected at all? Very discouraged with this engine. Any ideas
-
Probably a shorted wire between green or blue trim wire and wire on CDI, check all wires for melted or shorted wires and ground wires.Comment
-
70 tlrp 1991 low hours frying electrical.
Checked all wiring and could not find anything that would say a short. only place that I can find is at the silonoid, the power is always on at the rectifier (when battery switch is on) because the power wire (Small red wire with fuse that runs to rectifier and Ys to the ignition) is connected to the hot post on the starter silonoid. From the starter silonoid the hot is jumpered to hot side of silonoids for trim and tilt controls. All three silonoids ground into a four ground post jumper wire that they also share a ground post with the cdi. All of the silonoids work properly, But when I would hit the tilt button with engine running it would die. Could a bad silonoid be the culpurt, possably a bad connection that would have an excessive draw that would effect ether the shared ground or the shared power with the cdi. Cleaned all connections at post and grounds and could not detect any bad connections. Will have new cdi in hand withen the next few days and I am thinking about also replacing all three silonoids just to elimanate another costly cdi purchase. Very limited resources as I live in Alaska and away from many dealerships making parts weeks out. already replaced parts include new cdi,charge coils, lighting coils, rectifier, ignition coil. all were burned. Running out of electrical parts to replace. Thanks very much for your time and advice it is very appreciated. This is a wonderful source of knowledge. BrodyComment
-
GROUND GROUND GROUND
Got in there and completly dissassembled all wiring and went over with a fine toothed wire brush. The two ground bolts that also hold on the solonoids were corroded and making a poor contact, also being the only place the cdi ignition was grounded and also the trim and tilt.. When power was sent through the trim it was not a good enough contact it would then ground through the cdi box and ignition because of the shared grond post.. Make any sense. Installed new cdi box and fired it up no problem with ether the engine running or the trim. Trim actually works faster than it did before I deep cleaned wiring. Can hit trim and the engine does not die. Thought I would reply incase of others with problem. Thanks for all the help, once again Awesome site. BrodyComment
Comment