Messing with carbs now. Evened out the suction on each carb -they all draw the same amount of air in now. Before it was like cyl 1 was doing all the work, now it’s more even, but still bad throttle response
Serial 0t42660
I tested spark a few days ago and it wouldn’t jump a 30 kilo gap while the #1 cyl would. Today I put a timing light on, and all 3 make have spark according to the timing light. But when it’s at idle on muffs and I spray gas into the manifold, it Boggs on #1 and 3 but almost no...
I’m at a loss here. Just picked up a boat with 40hp merc 3 cyl 4 stroke. It bogged under load, but did get up on plane once. Any time I gave gas after that it would slow or die. Batteries weren’t charging either, same voltage running or not. So I got a new stater and regulator/rectifier and it...
Did some more testing. Stator numbers - yellow/yellow reads 0. Green/green reads .6. I get 40v out of the two yellow leads so I think my rectifier is bad as far as the charging part. Weak spark in cyl 2. Wouldn’t jump 30 on spark tester. Would jump about 20. Does this sound like bad stator and...
Just picked up a boat. The battery doesn’t charge- same voltage running or not, around 12.7v. Also there is no spark in the second cylinder. It’s a 2002 Mercury 4 stroke, 3 cyl. I swapped coil packs and the same middle cylinder has no spark. New plugs. I believe this to be a stator issue, but...
Hey guys,
I was on my friends boat not long ago and experienced something strange. 14 foot aluminum, 5 HP 4 stroke. While crossing the lake at full throttle, a few times the engine seemed to rev higher, and the boat would slow down. Just for an instant. It felt similar to cavitation, but...
Just got a 1999 merc 135. When I turn the key I run I get a beeeep beep beep. I figure that means the system is good. But I pulled the oil cap (with float) while running and he alarm did not sound. I checked and I have resistance with the float down and an incomplete circuit when up- the way it...
Out on the lake now. Bought a boat a month ago. 1999 135hp carbed merc. Been using for a month idling at 650 in gear. Added fresh oil the other day- a gallon into the resovoir. After about 30 minutes of running the motor started idling much higher. Picked up about 300 rpms at least. Could that...
Hey guys,
I'm new to this motor- 1999 135HP Blue Series Carbed V6 2.0. When I got it, I replaced Plugs, water pump and thermostats. I realized today that the water coming out of the tell tale is pretty hot at idle- about as hot as a faucet will go. If I rev it to about 1500 RPM's though, it...
Hey guys,
Just picked up a 1999 Mercury 135HP V6 Carbed model. I ran it for about 30 minutes the first time out. Bogged a little out of the hole but got up to speed ok. Last night, I ran a decarb- one bottle in 3/4 gallon of gas method- 15 minutes at high idle, 15 minutes off. I kept...
