Recent content by Bobg

Pappy, it happens in some merc 25's. I had one that did the same thing. Ran great, never over heated and at idle or on the hose, it would pee when the t-stat opened and not before. I figured it was just a merc issue. Never saw it in any other merc engine, just a few 25's

Disconnect your control cable and operate the excellorator by hand. Be sure the timer base is in it's starting position and returns fully to it's starting position when you go back to idle.

The good spark to the plug and it firing on time is why I didn't start there. Ohm tests will vary , and I'm just backing up all my other findings. The things I've done already, needed doing, and yes, I use a DVA, or peak reading volt meter. I've even borrowed another meter to back up my findings...

I've got the identical problem with the same year and hp merc. It's a 25 XD. Had weak spark on the top cylinder, replaced both coils. Got strong spark on both cyl's but no combustion on top cyl at idle. Trigger was broke on it's mount and replaced it. Still no combustion fire at idle on top...

Specs on a 61' Johnson 18 hp ( Same as Evinrude) original cost 395.00 bore 2 1/2 stroke 2 1/4 hp 18 rpm's 4500 piston disp, 22 weight 79 lbs Specs from a factory Johnson manual. Now about that prop. If you'll notice, the blades come straight up off the hub of the prop. Not swept back, (...

Would that be midsection, longer drive shaft, and exhaust tuner? Very good price if it includes all of that.

How's the water outlet? If you keep your gas maintained, meaning, keep your tank full and use stabilizer. Your engine will run good, longer. Now that you've cleaned your carb, you should know if the fuel bowl on your Suzuki carb has a drain plug on it. I'm not sure. If it does, drain your...

There's a small, about a 1/4" post that comes up under the starter head, next to the carb. Is that in place?

Many on here have rigged several boats. I've probably rigged more than most. Even if you have a spun prop, and replace it, it won't correct the recommended procedure for rigging that short shaft engine on a boat that requires a long shaft motor. See if you can borrow a prop that you know is...

Those engines had a surface gap plug originally, but there is an NGK electrode plug that's a recommended change over. Never trust the plugs out of the box. The reason I mentioned looking at the plugs and making sure they're firing in the cylinder, is I've got one with great spark, compression...

Please check to be sure you have spark on both cylinders, then after running it, check the plugs to be sure they both look alike and are burning the fuel. You might see a difference in the way they look.

Fuel tank gasket wouldn't stop the bulb from getting hard. Fitting connections could. A stuck open float in the carb, or a bad diaphragm in the fuel pump could also do it. That could cause gas to be injected directly into your crank case through the pulse hole that operates the fuel pump. No...

Nice job!!! Did you make the jack plate also? You can raise the motor higher than the 5" difference, the further back off your transom the motor is, because the water comes up from under your boat as you move forward. That would eliminate more lower unit drag and gain a bit more speed. How...

BOLT that engine to that jack plate when you get it mounted. Mount that jack plate as high as you can to get as close to the 5" that you need for the best performance. It looks like your jack plate will set the engine back about 3", meaning you could go another 1/2" higher. Looking at that...

Two things are possible and two things I do when I get a new engine. Install a new water pump, you might just have a clogged up outlet, but do you know how good your water pump is? From the way you describe your engine running from then, until now, I'd suggest a carb rebuild, along with...