Search:

No but your compression readings are all with 10% of each other. I would not be overly concerned. Replace the reeds and retest your engine. I think they are your issue and will fix idle and run...

Check and replace the reeds. The mist out the top carb is hint something maybe going on with reeds.

I think their has to be a way to install a pisser on that engine. The later model simply have a nipple and hose from the head/block overboard.

The reviews seem pretty good. Affordable and small.

http://www.harborfreight.com/25-liter-ultrasonic-cleaner-95563.html

Thank you for the reply. What RPM would you normally shoot for when racing? 5500 seems to be the sweet the spot thus far. The engine sounds different with the 10 pitch on it and seems happier. I...

Hello,

I hope all is well. I am back again for more insight.

I am currently running a 2001 Johnson 25hp Johnson on a heavy boat. I have installed the 30hp Carb from similar year and it...

Here is a good read on the topic.

Several people have tried porting, cutting intake, tuner, reeds and they all do very little from what I have taken from the situation.
...

Installed tach and ran the 25hp carb back to back against the 30hp carb with an hour of each other with same load.

25hp engine stock ran 5150 WOT rpm.
25hp with just 30hp carb ran 5600 WOT rpm....

Thank you for your time.

I ordered the ting tach and will have the wot rpm in the next couple of days. What you are saying makes perfect sense. The 25hp is rated at 5000 and the 30hp rated at...

That makes sense. I need to get it into the upper RPM range to allow it to make the power. I will try the 30hp carb and check RPM at WOT.

I was also considering adding a three vent holes to the...

Thanks for the insight. I have been eyeing a 11 x 9 SST prop but the old 30hp did much better with the same prop. All the engines and carbs are from the same 31.8 CI two cylinder OMC block.

I...

Hello,

I have read everything that I can on this topic and I am grateful for any insight that I can get.

I am currently running a 2000 rope tiller Johnson 25hp 2 cylinder on a heavy 16ft. I...

Thanks. Any way to look at the parts catalog for that engine. I could not find it vs the traditional shop evinrude site.

Team,

I hope all is well.

I am aware of the 35hp OMC up til 1985 then they rated to 30hp because of rating at the prop instead of the flywheel. I am aware of the carb difference between...

Long Island, NY

I want something safe, affordable and something that could actually take off and become popular. I think the real key to getting this kind of racing to take off is a standardized...

I keep dreaming of it. I am looking for a donor hull locally that I can cut up and modify. (one day).

Do you think there is even enough people interested in playing?

I would love a real world affordable and competitive class like this EVERYONE can afford and partake in.

I would love to build a 10ft fiberglass boat with top deck and flat stern that could me...

Hello,

I am in the process of pulling my carb all apart. I removed the silver caps from the top and inside the bowl area. The one inside the bowl area just appears to block off the other side...

That is where I saw it. I was always hoping that someone would have a couple new in the box stashed in the corner of their barn.

I would like to raise my engine a little higher and worry about...

What is the most HP that can be had safely from these engines? I noticed Second Effort used to offer a CLE gearcase for them. Anyone ever see one?

Thank you for sharing. I would love to hear as much as you are willing to tell about the Mirage 3 cylinder or any other project you were involved with. This is like crack for an outboard junkie. ...

Who makes one? I know Bobs says theirs is good down to 20hp but it seems too big. I know second effort used to make them for this engine but I guess they are all gone.

Thank you

How much play is acceptable? 1/4 inch does not seem excessive. I was starting to think that the issue was in the gearcase with a worn a dogclutch or forward. Or maybe someone removed that screw by...

Hello

I am lost and have spent 6 hours messing with this and have gotten no where. I bought this engine and listened to it run on mufflers and had it shift without issue.

I got it home and...

I would be very interested in some stacks if the OP is not.

Thank you

I would get a good 15pitch SST OMC wheel. Have it labbed and it should run pretty good. I would also raise the engine up on the transom 1/2-3/4 inch.

25:1 oil ratio seems crazy to me. Not...