Vst or not ? Yamaha 250 hp 1997 ox66 salt water series
 

I ve been out a couple days this week fluke fishing I noticed that at the end of each drift when the engine is still warm I'm having trouble starting it again, I've actually had to advance the throttle/shifter to get her started then quickly put her in gear and goose it till I get moving. It starts and runs perfectly when cold, it runs perfectly when under way and at WOT it's just on warm starts.. I cleaned the o2 sencor at the beginning of this season and found it to be spotless, yesterday I pulled the water separator and emptied the contents into a glass to find no water or debris but still changed it anyway , I changed out the gas filter but it also seemed pretty clean. Still the same problem .I guess my next step is going to be the vst filter or should I be looking elsewhere ?

Try re-priming ball before warm starts. Probably won't make any difference, but i try to look at easy first

rebuild or replace the mechanical fuel pumps, you probably have a diaphragm leaking on one

Thanks guys, I'll give the primer ball a try, but as per spare's recommendation I will change the fuel pumps

Where were you fluking? I saw a steplift around keyport nj on Sunday with a Yamaha motor

Step, unfortunately I no longer have a v20, I had to go a bit bigger in size. But keep that between us cause I'm afraid if the guys find out they mite not let me hang around here anymore

John, we already knew that because of some of your previous posts and your sig. We thought about impeachment proceedings and a trial for treason, but then figured that it was cheaper to just ignore your transgressions. :beer:

Ok Sooooo ,your saying I can stay,,,, hehehe

Well, we put it to a vote. So far you're ahead by one, but we still need to hear from a couple members. :you: (Hint: some free beer might help them make up their minds... Just send me several cases and I'll distribute it for you)

Thanks Paul , I'll send them rite over.I knew I could count on you !!

I'll have a Negra Modelo, thanks.

Too bad for you this didn't come out back when I was drinking Natty or Busch Light.

As per spare's advice I changed out my 3 mechanical fuel pumps, took her for a ride today ,shut her down and drifted for a while . I restarted her with no issues what so ever .however a couple of previous posts got me thinking , the day before I noticed the Problem I had added a 2nd battery on the boat. Before heading out todayI looked in the battery compartment and I found the primer ball laying dead flat behind one of the battery's and wonder if that could have caused my hard starting issue..just a thought !

Might want to move the primer bulb to the splashwell to keep potential leaks or fumes from getting in the bilge, especially right by your batteries. Move your fuel filter there too if not already there.

Yup. Solid hose from the tank to the filter located in the splashwell outside any underdeck area. Primer bulb in the hose coming from the filter to your engine. The idea is to reduce to zero any chance of gas fumes collecting in your bilge just waiting for a spark to ignite them

You guys are absolutely rite !!!! I swear I must be getting soft in the head cause I certainly know better .it just didn't register, I was just preacing the dangers of not opening cabin doors and compartments when fueling up to my son in law yesterday ,but that little life saver slipped rite by me.

Sometimes posting the most mundane thing can sometime save a life !!! ( just Thinking aloud) .

Just wanted to thank Spare again for the advice on changing the mechanical fuel pumps on the Yamaha, I spent the entire morning out fluking and restarted the boat 20/30 times ,she ran perfectly! I don't get a whole lot of time to spend out their so the little time I do is real precious to me and the help is as always much appreciated !

With a user name like steplift how can we bump you off na you can stay in my book by the way what boat did you get and how would you compare it to the steplift

Now that i thonk of it my boat does the same thing sometimes i have to advance the throttle to start it if i dont she just sputters out but not all the time

Steplift , I now have a winner walk around as you can see in my signature. It's very well built. It's just not a v20 hull unfortunately,it won't cut through a chop the way my v did but as I said it's very well built and has a fantastic layout with a very wide and deep walk-around that I now need as well as a very big cabin.