Here is the background. I have twin DT 140's on my boat. Last fall I decided to replace the water pumps because I had a suspicion that they had never been changed. After removing the water pumps from both motors I decided to replace the corroded Drive Shaft housings as well. I purchased the...
I have twins on my boat and I have a maintenance question. Do these EFI motors have O2 sensors. I want to decarbon them using Seafoam but I have heard Seafoam damages O2 sensors. Can anyone comment on this. Am I OK to use the Dunk method with Seafoam or should I use a product such as Ring...
WHen I recently installed my 2000 model 150HP Johnson with the included control box, I have an issue when I put the engine in reverse. When it goes into reverse I have idle speed and nothing else. The lever wont go down any further. When I use the fast idle in the box, I have the full range...
I am retiring the 1987 200 Johnson for a 2000 150 Johnson. The motor comes with it's own controls. Will my old tach work? What other items will I need? Thanks in advance.
Wasn't there a service bulletin on these way back when? Mine does not spray fuel in when you pump the bulb unless you put it in the manual position. You can then hear the fuel spraying in. It works fine once the motor cranks.
The tach on my 1987 200 HP Johnson starts acting up after the motor warms up. It reads fine for the first 5 minutes and then starts dancing all over the place. After a few more minutes, it quits all together. The thing that is confusing me he is the volt reading. It is still charging. I have...
During my last fishing trip I noticed the tach on my 1987 200 HP Johnson was dancing all over the range and would not read correctly. The next day I came on this site and rather than posting a new question, I used the SEARCH feature in the middle of the screen and immediately found a plethora...
I need a carb kit for a 1987 4HP Force. Specifically I need the needle spring and the carb bowl O-ring. I have struck out locally.<br />Can anyone help? Thanks
I am considering purchasing this motor used from a dealer. What besides the compression and lower unit should I inspect before buying it? Thanks for your responses.