Hello all, i recently purchased an older evinrude engine. The serial on the tilt trim bracket, is E140TLESE. which comes up as a 1990, 140hp. however the power head on my engine does not have the coolant cross over tube, which means its a 92-94? a fellow boater told me who looked at it. Id like to try to identify what year the power head may be so i can order parts as well as a service manual. when i purchased the engine it as it still does, fired right up. did a compression test and numbers were 125 on all 4 cylinders. so i loaded her up and was on my way, i now have her painted black, and rigged up onto y 1971 16' Tahiti.
engine fires right up, and once warmed up, idles down to around 900-1000 rpms on muffs or in a 55 gallon barrel on its side, when idling at running temp, she develops a sneeze, and seems like it misfires, and then runs good again, and then sneezes again, and comes back to life again. i had her on the water and was able to run at 4k rpms but i only had a 19 pitch prop, i think more of a 23 pitch prop will get me to my correct wot rpms. all seemed ok until i got below 1000 rpms, it would develop the sneeze or misfire again. the engine seemed to use alot of gas too, and i was only on the water maybe and hour or two.
i have checked and cleaned all connections especially grounds. she has new plugs and a new cdi electronics rectifier/regulator, because the rpm gauge did not work, with the new rectifier/regulator the rpm gauge works again. however my battery voltage stays the same when not running, idling, and revving to 2-3k. i had also found voltage on the black wire with yellow tracer (kill circuit) which turned out to be a shorted red plug on the engine side which i have now jumped the plug with a new wire.
when i try to check ignition timing at idle it is showing about 8 degrees after top dead center. i have a video of this on youtube but its blurry, ill post the link at the bottom.
i did ohms tests and dva readings on all the electronics and there are a couple things in question but nothing that seems like the electronics have failed. although they could be original? i am going to attach some pictures as well as a link to a youtube video of it running with the sneeze or misfire taking place, the video is a lil blurred i dont know why on my phone it is crystal clear...
any help would be greatly appreciated, if anyone is in the fairfield county/ westchester county areas, and would be able to meet in person id be willing to pay you for your time, and come to you... thank you all again in advance as any knowledge is much appreciated
-joey
engine fires right up, and once warmed up, idles down to around 900-1000 rpms on muffs or in a 55 gallon barrel on its side, when idling at running temp, she develops a sneeze, and seems like it misfires, and then runs good again, and then sneezes again, and comes back to life again. i had her on the water and was able to run at 4k rpms but i only had a 19 pitch prop, i think more of a 23 pitch prop will get me to my correct wot rpms. all seemed ok until i got below 1000 rpms, it would develop the sneeze or misfire again. the engine seemed to use alot of gas too, and i was only on the water maybe and hour or two.
i have checked and cleaned all connections especially grounds. she has new plugs and a new cdi electronics rectifier/regulator, because the rpm gauge did not work, with the new rectifier/regulator the rpm gauge works again. however my battery voltage stays the same when not running, idling, and revving to 2-3k. i had also found voltage on the black wire with yellow tracer (kill circuit) which turned out to be a shorted red plug on the engine side which i have now jumped the plug with a new wire.
when i try to check ignition timing at idle it is showing about 8 degrees after top dead center. i have a video of this on youtube but its blurry, ill post the link at the bottom.
i did ohms tests and dva readings on all the electronics and there are a couple things in question but nothing that seems like the electronics have failed. although they could be original? i am going to attach some pictures as well as a link to a youtube video of it running with the sneeze or misfire taking place, the video is a lil blurred i dont know why on my phone it is crystal clear...
any help would be greatly appreciated, if anyone is in the fairfield county/ westchester county areas, and would be able to meet in person id be willing to pay you for your time, and come to you... thank you all again in advance as any knowledge is much appreciated
-joey
