Hello everyone I'm activated

[shurlock]

NoT sure how old the gas is just bought it. That was my first thought. Boat engine cranked right up. so I took it out for a sea trial ran great for 20 minutes at WOT then died like I turned it off! trolled in on a trolling motor came home and checked spark and plugs everything seemed OK I have not got any more into it than that. going to check compression And fuel like spare parts said I started this on another thread in repair section of the forms.

this seems like a great resource for other v20 Hull owners thx

[reelapeelin]

Originally Posted by Destroyer

You say you broke down. I'm assuming that you mean the engine stopped working properly.

Did it stop completely or did it just start running ragged?

How old is the gas you're running in it?

Did you try spraying starting fluid in it? If you did, what happened?

Have you pulled any of the plugs? If so what do they look like?

Sorry you had a bad experience. As said before, it happens to all of us sooner or later. Welcome to the site though. Looking forward to more pics and the eventual fix of your boat.

DON'T spray starter fluid into any two stroke motor which your Johnny is...

[Cam]

Make sure you check your gas filters too

[THEFERMANATOR]

Originally Posted by reelapeelin

DON'T spray starter fluid into any two stroke motor which your Johnny is...

Yep, you can end up with a nice window in the side of your block when it ignites i nthe block and blows the case apart. You can use WD40 as it doesn't pop with enough force, but ether is just to violent for a 2 stroke.

[Destroyer]

Sounds to me like you have a fuel delivery problem. Since you say you have spark and she was running fine before it quit.

I'd first check my fuel to make sure I was getting fuel and not water to my engine. Older fuel, especially with this Ethanol crap we get now, is very likely during the winter to trap water and separate it out. Suck that stratified water stuff through your lines and your engine will stop in a heartbeat.

If your fuel is ok, then I'd check my lines to make sure i was getting fuel to the engine.

Yes - Check and clean the carbs.
No - Check your fuel filter, your fuel lines and your fuel pump.

[Destroyer]

Originally Posted by reelapeelin

DON'T spray starter fluid into any two stroke motor which your Johnny is...

Easy guys... I wasn't advocating he use starting fluid. I just asked if he did, and if he did, what happened.

[Destroyer]

Surelock. Since I don't know what your education is with regard to 2 stroke engines, just in case you're wondering why you shouldn't use starting ether in a 2 stroke:

In a normal 4 stroke engine cycle the fuel/air mixture is sucked directly from the carburetor, through an intake valve, into the cylinder, where it's burned, then exhausted through an exhaust valve. It never gets into the crankcase of the engine.

But in a 2 stroke engine, unlike a 4 stroke, there are no intake and exhaust valves. The fuel/air mixture is sucked from your carburetor, through a one way reed valve, into your engines crankcase, and from there into your cylinder to be burned and then exhausted. (This is accomplished by the use of very precisely located ports in the sides of the cylinder that are opened and closed by the piston moving within the cylinder) The piston, in it's downward stroke, compresses the fuel/air mixture in the crankcase until it (the piston) passes and opens the transfer port, allowing the compressed air/fuel to transfer into the cylinder where it is burned and then exhausted.

So, unlike a 4 stroke, using starting ether will result in there being a highly explosive mixture in the crankcase that any tiny spark can set off, and since the crankcase is not built like a cylinder to withstand the forces of that explosion the result is usually a hole in the side of the engine crankcase.

You can get a better idea from watching this video: http://science.howstuffworks.com/tra...wo-stroke2.htm

Hope this helps explain things.

[shurlock]

wow if I did not read your guys posts probably would have sprayed half a can into the engine. I consider myself quite a mechanical person I am a mechanical journeyman for chillers down here in South Florida. I rebuilt the 350 in my Trans Am myself. guess I am going To purchase a manual for this engine and do a little reading thanks guys

[macojoe]

Sorry it took so long to aprove you!! But I have some health issues that are taking up my time.
Glad you made it and welcome to the site. these guys will have you going in no time!!

[shurlock]

Mac Joe thank you don't worry about it read a couple of the posts on the forum you're going through a very lot and my prayers are with you. and I am very impressed that you're still on the Forums