Guys, just got through the break in period on a fresh rebuild of my '95 115 J115TLEOR. It was originally a jet motor but I changed over to a propped lower.
Carbs were rebuilt during the overhaul and all fuel lines from the tank back replaced. Compression is 120 on each cylinder, strong spark (jumps 7/16" gap on tester) and pickup and WOT timing are set per the factory manual. Link and sync is correct per the manual as well.
The motor starts and runs fine and will turn ~5800 at WOT but it has an ugly miss just above idle from about 1,000 to 1,500 RPMs. Once I'm past that it runs like a top. No acceleration issues, either. I can go from idle to WOT and it jumps up and goes as expected. I haven't been around enough of these V4s to know if they all sound kind of ugly at that RPM range or if I have an issue. Any ideas what might be causing this miss?
Also, the VRO was disabled when I bought the motor but to clean it up a bit under the cowling I'd like to just put a regular fuel pump on it. The link to the part in the "Top Secret File" isn't working but I do have a good fuel pump off of a 1980 75 HP lying around. Would that pump work on a '95 115?
Thanks!
Branden
Carbs were rebuilt during the overhaul and all fuel lines from the tank back replaced. Compression is 120 on each cylinder, strong spark (jumps 7/16" gap on tester) and pickup and WOT timing are set per the factory manual. Link and sync is correct per the manual as well.
The motor starts and runs fine and will turn ~5800 at WOT but it has an ugly miss just above idle from about 1,000 to 1,500 RPMs. Once I'm past that it runs like a top. No acceleration issues, either. I can go from idle to WOT and it jumps up and goes as expected. I haven't been around enough of these V4s to know if they all sound kind of ugly at that RPM range or if I have an issue. Any ideas what might be causing this miss?
Also, the VRO was disabled when I bought the motor but to clean it up a bit under the cowling I'd like to just put a regular fuel pump on it. The link to the part in the "Top Secret File" isn't working but I do have a good fuel pump off of a 1980 75 HP lying around. Would that pump work on a '95 115?
Thanks!
Branden