Ya it has one yes I also have the switch on itMan Over Board
By fill up I mean it won’t completely fill upI do notice the fuel filter will not fill up no matter how much I pump. Even if it starts spilling out of the overfill tubes
Compression is good how do I check timingIt's OK if the filter still has some air in it. If you open the drain on the carburetor, does fuel come out? Try opening the throttle, spray in a little starting fluid, close the throttle to about 1/4 throttle then give it a good pull. If it won't start with starting fluid then the next things to check are spark, timing and compression.
Ok ya I just pulled the carb apart and put it in an ultrasonic cleaner. I don’t think that’s it. Where exactly. Should I spray the starter fluidBefore you get into timing, what is the history of the motor? Was it put into storage with gas still in it? Did you try some starting fluid? It's a whole lot easier to give it a shot of fluid and see if it fires, than taking things apart to verify timing. With a motor that new, if it's got spark and compression then most likely the problem is a clogged up carburetor.
That said; to check mechanical timing, to be sure the flywheel didn't shear the key and slip. Pop the valve cover and look at the cam while you turn the flywheel to TDC. Every other revolution the valves should both be closed when the TDC mark on the flywheel lines up with the indicator. This will help:
Inspection Of Idle Engine Speed; Inspection Of Ignition Timing - TOHATSU MFS 4 Service Manual [Page 57]
TOHATSU MFS 4 Manual Online: inspection of idle engine speed, Inspection Of Ignition Timing. 1. Start Engine And Run For 5 Minutes To Warm Up. Attach Tachometer To Spark Plug High Tension Cord 1 To 2. Check Idle Speed. More Accurate And Stable Reading Can Be Obtained When Tachometer...www.manualslib.com
But like I said above, try the starting fluid first. If it runs for a moment with starting fluid, then the timing is fine.
Also don’t know too much about the history it was running for the guy I got it from and I believe he let it sit and now I can’t get it to startBefore you get into timing, what is the history of the motor? Was it put into storage with gas still in it? Did you try some starting fluid? It's a whole lot easier to give it a shot of fluid and see if it fires, than taking things apart to verify timing. With a motor that new, if it's got spark and compression then most likely the problem is a clogged up carburetor.
That said; to check mechanical timing, to be sure the flywheel didn't shear the key and slip. Pop the valve cover and look at the cam while you turn the flywheel to TDC. Every other revolution the valves should both be closed when the TDC mark on the flywheel lines up with the indicator. This will help:
Inspection Of Idle Engine Speed; Inspection Of Ignition Timing - TOHATSU MFS 4 Service Manual [Page 57]
TOHATSU MFS 4 Manual Online: inspection of idle engine speed, Inspection Of Ignition Timing. 1. Start Engine And Run For 5 Minutes To Warm Up. Attach Tachometer To Spark Plug High Tension Cord 1 To 2. Check Idle Speed. More Accurate And Stable Reading Can Be Obtained When Tachometer...www.manualslib.com
But like I said above, try the starting fluid first. If it runs for a moment with starting fluid, then the timing is fine.
Are we talking about a 2T or 4T? I was assuming a 4T. Also I've used starting fluid with 2-strokes many many many times, it's fine. When I was a teenager back in the early 90's my buddies boat had an old Mercury 150 v6 2-stroke that refused to cold start, so we kept a can of starting fluid in the boat for the first start of the day. We must have driven that thing half way around the world. Wait tables at night, pool our tips in the morning to fill the boat, go wakeboarding or fishing all day, rinse and repeat. He had a boat and no truck, I had a truck and no boat, we got along really well.starting fluid kills 2-strokes since it doesnt have oil. you should spray a mix of oil/gas in a 2-stroke.
Yes using chokeFor the starting fluid; if that's like my Tohatsu 6HP then there's a metal screen over the air intake, facing downward, on the front of the carburetor. Open the throttle to full throttle, spray the starting fluid up into that screen. Maybe a 1-second spray. Then close the throttle to about 1/4 and give it a few pulls. If it sputters or starts for a second, then the carburetor is the problem. The passages in those carburetors are itty bitty. The ultrasonic cleaner is a great start, but also spray carb cleaner and compressed air through every hole, especially the tiny ones. Take the fuel screw out and spray through there too. Wear safety glasses, carb cleaner will wreck your eyes and frequently comes back to you when spraying into the holes of a carburetor. If the guy said it was running fine when it went into storage, then 95% chance the carburetor is the problem.
Side note --> When you're trying to start it normally, you're using the choke right?
Well yes I know but engine where I can pull the cover off, and the carbs are exposed when starting, I was just wondering where to spray it on these tiny carburetors without having to pull it apartYou would spray starting fluid in the carb...
You should be able to get it into the carb via the air box that is right in front of the carb...Well yes I know but engine where I can pull the cover off, and the carbs are exposed when starting, I was just wondering where to spray it on these tiny carburetors without having to pull it apart