200hp several issues

[comet424]

ok i got a few problems im new to the boating today was first day i tested my boat in the water without ears


1. what does outboard sound like running in water supposed to some what run rough or smooth like a car engine?
2. sometimes i guess shifter stickers so couldnt get it started for the soldnoide
3. why would it not sometimes start in idle mode i had to try to start it with high idle set up and turn it down
4. it died on me
5. it was charging the battery, but after a while i noticed it wasnt charging so how do i test the regulator ? what could have caused it? and if its broken or what be the ohmage if the regulator is still good
as i bought a new stator, 2 switch boxes, temperature sender, rectictifer, regulator, so what would it caused this or what do i test for to see where the power not coming from?
6. the temperature gauge i had tested in the boat (i ordered one) but i have this one goes from 100 to 240 and it wasnt showing any and then right to 240 so i hoping its not over heating?
7. what is the spray should be for water it idels and sprays out but at high speed it it spits out some or not at all is it not supposed to be constant spray ? or is water pump no good?
8. and what is the rpms should be running at at high speed i had it at like 5200 rpms is that normal or what not when i hit waves it would reve up to 6000


so i need help here on what to test and how to test

mike

 

[comet424]

Re: 200hp several issues

120 people viewed this so far and no one has any answers lol

ok so does anyone know what the ohms should be across the 2 poles of the regulator

as if you look in the selco repair manual there is no such thing as a voltage regulator only in the diagram and it isnt used for charging, only talks about the rectfier but the rectifier doesnt charge the battery

as this engine uses a rectifier and voltatre regulator


and considering the voltage regulator cost 300 bucks i wanna try to get a warrenty if its burned out
and if anyone knows how to build a voltage regulator for 15 amps please let me know ill build it for lot less then 300 bucks

 

[wired247]

Re: 200hp several issues

First off...what year and what is your serial number? Mercury made 4 or 5 different 200's.


1. what does outboard sound like running in water supposed to some what run rough or smooth like a car engine?

Your question doesnt make a lot of sense but its not a car engine. Its a 2 cycle outboard. They are loud and somewhat rough running. First boat?

2.sometimes i guess shifter stickers so couldnt get it started for the soldnoide.



I don't know what you are asking.

3. why would it not sometimes start in idle mode i had to try to start it with high idle set up and turn it down

Thats why you have that lever. Carbureted 2 cycle marine outboards often do not like to start cold and need a high idle for a few minutes to get the juices flowing.


4. it died on me

Could be lots of reasons for that.

5. it was charging the battery, but after a while i noticed it wasnt charging so how do i test the regulator ? what could have caused it? and if its broken or what be the ohmage if the regulator is still good.

How do you know it wasnt charging the battery? Are you using an ammeter of a voltmeter? An ammeter won't show any movement on the needle if the battery is charged.

6. the temperature gauge i had tested in the boat (i ordered one) but i have this one goes from 100 to 240 and it wasnt showing any and then right to 240 so i hoping its not over heating?

Could be . Are you getting any water streaming out the pee hole?

7. what is the spray should be for water it idels and sprays out but at high speed it it spits out some or not at all is it not supposed to be constant spray ? or is water pump no good?

Probably bad. They don't last long. Change it and the thermostat


8. and what is the rpms should be running at at high speed i had it at like 5200 rpms is that normal or what not when i hit waves it would reve up to 6000

Most mercs and most 2 cycles in general will live just fine at 6000.

 

[comet424]

Re: 200hp several issues

ok for one no one knows hwat model this engine as someone changed the power head and the frost plug so there is no serial number for it the frost plug is for a 70-135 hp and the serial number on bracket is a A1 for a 1985 engine but its not a 1985 wiring its more like i guess 90-91 its a black max i guess but then not sure its on page A-43 in the selco book

as for running what i ment is while it idles the engine kicks and stuff so its my first boat basiclly and first outboard so it doesnt run smooth i figured it supposed to run smooth like my chainsaw or other 2 cylce engines but i just guessing as i have nothing to reference it from

about the shifter, IT sits in netural yet u cant start engine u gotta go back and forth a bit i guess some saftely clip so i by pass it with booster cables and started it right off the starter like if i were to boost it

i have a battery voltage on the dash was saying 13 volts also i have mulitmeter digital and it was showing 11.53 volts at high idle in water

but since i on land now i wanna know what hte ohmage should be across the 2 poles on the Voltage REgulator to show if its burned out or if it still working fine when the engine not running

i get water stream from pee hole but when driving the boat no its snot steady or nothing spits or doesnt spray at all
so this does have a thermostat? where would that be i know on a car engine but not on a boat engine figured on boat it just pumps up the water and out the pee hole and thats it

ah ok wasnt sure if 6000 was too high like running on the water i was getting 5200 rpms but if i lifted motor too high it went to 6000 so figured i was too high

 

[CharlieB]

Re: 200hp several issues

The Merc V6 is a giant step up from your chainsaw. Yes it is still a 2 stroke, but on steroids, lots and lots of steroids.

Temperature gauges are often inaccurate and electrical parts are prone to failure out on the water. A far better choice is a water pressure gauge kit which is a reliable method of KNOWING the condition of your cooling system.

Each cyl head has a T-stat near the top, with a hose leading to the P tube. The P stream will only flow when the stats are open. This is another reason the pressure gauge makes a lot of sense.

Carb cleanliness and fuel pump pressure, as well as fuel quality, has everything to do with motor performance and longevity. A dirty carb, weak fuel pump will cause major engine damage as a lean mixture will very rapidly melt a piston, often will little to no warning.

Coughing at idle and low engine speeds are most often caused be a slightly lean idle mixture. Possibly a sign that it is time to clean the carbs.

The voltage rectifier is a one-way electrical valve, testing with an ohm meter requires you to disconnect all the wires so you don't fry your meter. Check the red wire terminal to each of the yellow wire terminals, note the reading, now reverse your meter leads and retest. you should get an ohms reading only one direction. If you get no reading either direction or a reading in both directions, the rectifier is bad.

 

[comet424]

Re: 200hp several issues

ah steriods lol nice
but ya its a change from what i used to so its hard for me to judge
ya this temperature gauge wouldnt go up when idling on ears but in the water it didnt but then it jumped from below 100 to 240 in 1 second so i think that temperature guage dont work for this i waiting for a new one

how does a waster pressure gauge kit work? where u get that or how you hook that up

so then the p stream should be streaming at high speed my friend told me that is just a tell tale sign that the pump is working and the water goes through the prop from the engine head but that doesnt make sense either is he right or wrong?

if wrong does the water go just through the p stream?
so what does the Tstat look like i not at home so i cant look,

as for fuel qaulity they blew the oil pump and i guess all the components melted dotn event have a high low stablizer it melted too, so they mix the oil with the gas in the tank to bypass the oil pump
they ripped out the buzzer too

when i get home ill test the voltage rectifier, what would cause it to break?
but what i confused is would it be the rectifier that be broken or the voltage regulator? as i have bought both of these to put on but then i seen you can get combo voltage regulator/rectifier

so whats the difference between the 2? what they for? i know regulator to make 12 volts

how does the rectifier blow my volt meter set on ohms?

but ill test it tommorow or saturday

 

[CharlieB]

Re: 200hp several issues

Ohm meters do NOT like voltage, if you forget to disconnect the battery you will toast the meter in far less time than a heartbeat.

P stream comes after the T-stats, no flow unless the stat is open at temp. No flow til the motor warms up, then running at speed in cool to cold water the motor often can run slightly cooler than the t-stat and then there is no P stream.

A pressure gauge taps into a small pipe plug fitting on the very top of the cyl block and runs a small plastic tube clear up to the gauge on the dash, constantly showing you what the water pressure is. There are a number of threads that spell out the pressure gauge and the 'normal' range of pressure at idle and how it well rise as RPM comes up until the by-pass valve opens where pressure drops during full flow. You'll soon get used to it and if you ever notice an abnormally low pressure you'll know it is time to look into the water pump.

 

[comet424]

Re: 200hp several issues

ok i cant test today damn rains

ok so when so you mentioned what to test when its the rectififer

but what should the ohms be testing the voltage regulator that sits on the top of the engine?

as i have a voltage regulator and a rectifier, but some models i guess have a rectifier/ voltage regulator combo?

whats the difference?


ill have to see about ordering this pressure gauge

so what would have caused the rectifier to burn out or the voltage regulator
as i put
brand new
stator
rectifier
2 switch boxes
regulator

all on it
but not the high low idle advance module
cant afford that yet

 

[CharlieB]

Re: 200hp several issues

Forget the Idle Stabilizer Module, take it off and trash it. They have a nasty habit of tossing the rods out the side of the motor block when they go bad, advancing the timing at WOT.

The ONLY white Bias wire you want on your switchboxes is the single wire connecting the two boxes together.

Readjust your WOT timing at 22 degrees while cranking.

Rectifier/regulator modules die from either a poor battery, poor battery cable connections, or poor stator connections on the yellow wires. ANY poor connection causes excessive current , creating heat in the connection and within the rectifier. Heat cooks electrical parts. Many cut off the bullet connectors on the stator yellow leads and solder them directly to the rectifier wires, ensuring the best possible electrical flow.