imbatman

WOW your need for a sense of superiority is just amazing. Not only do you continue to try to belittle someone you yell at them while doing it. I bet dollars to donuts you would not do the same thing in person. Like i said before this is almost an integrity test when someone reacts as you do by yelling at people. The video you posted is of a 4 stroke now that I go back and look again. Please take the time to look and tell me if I am wrong. It is possible to pressurize a crankcase during a leakdown, heck that is one of the things you are testing for and the reason you use low PSI. In the perfect world the rings are fine but once again I say if the wall is scored or the rings are broken you will pressurize the crank case and pop the seals using 100psi. There is no reason to use a high PSI on a 2 stroke. 10 psi or 100 psi will show you a leak and why use so much pressure when it is not needed and can hurt the motor more. I know the mod on *** you speak of and he has given more good advice than most and has saved folks money and heartache. Seems you just try to crap all over anyone that has a diff idea to offer if it does not match yours. All I can say is you guys have google and can look this stuff up for yourself and see how folks are doing it.

The first comment in that video questions what they are doing. The second comment indicates it is not a 2 stroke by asking if this would apply to a two stroke. I tried to verify what they are actually testing but the link they supply does not work for the details on the test. The website is dead (boatinglocal.com) even. So help me then. If I am at TDC of a 2 stroke, have a broke ring and put 100psi to it you do not believe it will pressurize the crankcase and blow the seals? As far as "not having a clue". Did that make you feel better? Get some endorphins popping? It's kinda like crack to some folks. The internet amazes me because you find out how people really think about themselves and others. There is an old saying that integrity is about what you do when no one is looking. I have seen this in comparison to folks lack of manners and civility on the internet when no one knows who they are.

I am not here to argue over anything. All I can do is ref you to the link I supplied. If you have a link to pressure testing a 2 stroke with 100 PSI or more I would be more than happy to read it. I have an open mind as we all learn things most days. The issue using such high pressure is that if you have a scored rings in the piston or piston walls the leaked air goes into the crankcase where you have rubber seals on the end of the crank. To much pressure (ie 100psi) and the seals are gone. You can use 100psi on a 4 stroke because the crank case is not part of the fuel charge system as it is in a 2 stroke and if your rings are so far gone in a 4 stroke then you would have blow by and get fuel mixed into the crankcase oil. That is what happened with the first yamaha 4 stroke SHO's. You would go to change the oil and it would have more "oil" in it than was put in. Type into to google "yamaha outboard making oil". As far as the exhaust port being "wide a** open" that is why you have to plug them... as ref'd in the article.

Won't Leak down testing a 2 stroke pressurize the crankcase @ TDC as the intake port is not covered. You put 100 psi in a 2 stroke with the piston at TDC and you will blow the crank seals want you. The intake and exhaust valves are closed on a 4 stroke so it is sealed at TDC but not on a 2 stroke as it is still pulling the fuel charge at TDC. I have always done it at bottom dead center so the intake port is closed then you have the seal the exhaust port with a rubber plug or the like. I worked on more 2 stroke bikes than boats (plenty of boats) but the 2 stoke fundamentals are the same aren't they? " With all test equipment in place and the piston at bottom dead center, use the hand pump to pump 6 PSI of air pressure into engine. Never exceed 8 PSI of air pressure or damage to the seals and/or engine may occur. " https://www.motionpro.com/a/2-stroke-leak-down-tester-08-0071/ http://www.animatedengines.com/twostroke.html

For certain as there are no absolutes in fishing and this does apply at times but I would bet dollars to donuts matching the hatch out preforms over the long term by 2 - 3x. I had to get near the water anyway I could. The boat is almost done though!! My sister is a survivor and it is a tribute to her. She knows nothing of it. Just finished the paint and have to do the carpet next.

So I had to get out of the house this morning so I went down to Shearon Harris in NC to fish a little from the bank and see what was going on since it was a full moon last night. I did not get a bite but I get why. Well the Shad spawn was going so hard I could catch them in my had. Shearon Harris has huge fish for a couple of reason but the shad population sure plays a big part. There were literally millions of shad in the area of the lake I walked down to. It was a buffet!!! There were bass everywhere (my fake GoPro battery did not last) just trucking shad into the vegetation to gorge themselves. The BPT/MLF guys would have been fishing out there today, I would have loved to have seen that.

These are all just opinions but it comes from a lot of experience. Be careful doing leak downs on two stroke as you will blow crank seals. Very low PSI should be used with great care plugging the ports. For the compression maybe it is the gauge but I would have a 2nd gauge on it to verify. I would not trust a gauge that reads 90 on a cylinder that has 110. It would have been very easy for someone to have replaced those head gaskets at some point and used the wrong thickness. I was a really lucky guy for a while. I worked in a boat shop (Collinsboating.com) for a while doing service and rigging and got to use a bunch of bass boats. Basically if we got a used boat in on trade and it had a Yama or Rude on it I could take it out or if it had warranty left. I drove about every brand bass boat in a 20 or 21 and they all do 70mph with a 250. They all turned at least a 25 pitch prop. This is a Ranger Z521 I used a bit. It is one of the heaviest, if not THE heaviest bass boat hull on the market. Rangers are great riding but not know for their speed. It would run 72-74 all day long. We had a Triton Tr21 with the same motor you have and it ran 76mph. Something is not right. One thing is for certain with no doubt. The 250 Pro XS should bury that 22 pitch prop into the reve limiter without much problem, I am not saying do it but a correct running 250 on a 1500lb bass boat should spin a 22 off the darn prop shaft. This was out at Falls Lake in outside Ral NC a couple of years ago.

Alumicraft makes a 16' Jon boat with a livewell and trailer that is right @ 4k$ . It is very basic but it would be easy to build a little padded casting deck and mount a foot controlled trolling motor up front. You could add one on the back for more speed or get a little 9.9 that is easy on and off. It is exposed ribs in the bottom which makes adding a simple floor very easy. You should come in under 1000#s pretty easy. Boat and trailer might go 750 lbs which leaves plenty of room for batteries and a trolling motor or two. Even the Yamaha 9.9 is under 100#s. We have some guy here with some serious john boats. I was launching one morn when they were going our and one guy had three trolling motors across the back and another up front. That little thing was getting it done!!!

I doubt it. That is for sure one of the things that the SmarCraft stuff will fault on. V has to be between 10 and 16 according to the ref link above but I expect more like Way2Slow said... once running you will see mid 13v about like any car alternator also. Those motors need a huge amount of cranking amps for the starter and to get the pump spinning in the VST. That starter is a beast as it is fight 6 cylinders of very beautiful 2 stroke power. Total guess but from the looks of the plugs and intakes did the previous owner do a lot of idling or low speed I wonder? Looks like the saltwater two stokes from the coast down here. They idle and troll all day and wonder why they have carbon build up and run like crap.

Okay...woooh woooh.... Compression on that motor should be in the 105-120 range. I know you said you did not warm it up but I have never seen one gain 15-30 lbs once warmed up and some will say a two stroke should be done cold. I my humble opinion I would do both. When cold pull all the plugs at once and do each cylinder as you do not want the cylinder you are testing to be impacted by the others fighting compression. Put the plugs back in and warm it up on muffs. You don't really have to run it to long you just want the cylinder and piston good and warm which happens well before the exhaust/pee water gets warm or the thermostat even opens. In a perfect world you do this at the lake where you can get it to full operating temp. You do not want a huge diff in cold and hot compression. Really getting it hot is where shows or can uncover the old trick of squirting a little oil in a bad cylinder to get it to test good cold. The plugs really do not look that bad. Any idea how many hours on them? I really think any issue you would have had with the motor to cause this would have alarmed on your gauge. Those motor monitor everything from fuel pressure, to misfires, and about anything that can impact how it runs. It has a "Guardian" mode where it will limit RPM's if it senses an issue. This all works in conjunction with the SmartCraft gauges. If you get a single important engine sensor out of range it limits the RPM's. Those motors have some failures in the VST pump but again that will surely throw a fuel pressure alarm. https://www.perfprotech.com/blog/marine-outboard-motors/mercury-marine-smartcraft-and-guardian-system-warning-horn-alarms If you did not pull all the plugs for compression test do that and see what you get. If you get numbers like I would expect (110lbs */- 5) then get the 25p and run that prop to pad up to 3.5". Maybe @ 4.5 it was just terrible combo of slip and lack of bow lift. I would expect the 22p @ 3.5" would blowout. 22P push a lot more water up and around the prop than a higher pitch will. The higher the pitch normally the higher you can run the motor because the pitch pushes a greater volume of the water back. You will see guys with Bullits and Alisons running 2" but that also has to do with those being very light boats. I have a buddy with a Skeeter 21I with a 300 and he is at 2 1/4".

If it is a Smart Craft Gauge it is most likely correct as they tie directly into the ECM. They would be accurate or not work most likely. You did the correct thing with the vent holes in the prop, they just allow a little more air/exhaust around the prop at low RPM to help it spin up faster. They have basically zero effect at speed as that little bit of air is swept away at speed, not around the prop blades like when coming out of the hole. The soot is a little odd but could just be crap fuel used previously or running a little rich. As long as you are not getting any warning lights you kind of have to assume all is okay. If you had any kind of fuel delivery, over heat, low compression issue the SmartCraft should throw a warning. Here is a prop slip calculator. You can plug in your #'s and get the slip you have You should be in the 10-12% range and you are 15%. Prop slip is how far the prop should push you in one revolution vs how far it does. The more slip you see the more drag you have taking away from the forward travel. That goes along with those that say you are pushing to much water. https://www.mercuryracing.com/prop-slip-calculator/ Still you should be turning a 25 or 26 @ 70+ at about 3-5% less slip that you have with a 22 @ 5900rpm. Any chance you stand behind the boat and take a pic with the motor down? Take it from down low. It will tell us anything about the actual prop to pad measurements but maybe there is a miscommunication about something.

You know I didn't even think about it like...I guess none of us are.... siigggghhhhhhhh

If you come thru NC we might be able to get a day in. I am in the Raleigh area and you can choose from Falls Lake, Jordan Lake, or Shearon Harris. These are three really good lakes, MLF was supposed to be here now thru the weekend but COVID19 screwed that. Shearon Harris can be ridiculous. A few years ago this guy and his wife put together back to back weekends with 40+ lb bags (one was 46lbs). Just watch this video... They are culling 7lb fish....

That is odd. Normally floor drains do not have any kind of hose/piping. The water should just run back to the bilge. I would take the drain cover off and just get a better look. How much water are you talking about? like an amount that sloshes around or just some dampness?