Mercury XR6 starting problem
Hey guys, I have a 2000 Mercury Xr6 150hp rigged on a nitro nx882, every morning the engine is a pain to start, once it fires up it will start in a second every other time of the day. Primer bulb is new, i choke it well, i have read about a condensation issue or something before but cant find the post now, anyone has any advices for me??
The xr6 is a carburated motor and i have got it calibrated also
Based on my limited knowledge,fuel flow through the carbs is regulated by the floats so it may crank better if you make sure the engine is trimmed to level when starting. Make sure you have a good strong battery and all wiring connections are clean and tight.That's all I got.
If wiring would be bad the engine wouls have a hard time firing all day no?? I always level trim it before cranking it. Thnk you!
Starting procedures for the XR-6 as per Don Weed on the Merc forum.
My 2001 XR-6 always starts instantly using this method.
1) Pump primer bulb till firm.(each and every start)
2) Trim motor to level
3) Hold key in (without cranking engine)for a 5-10 count. .0ne thousand. two one thousand ect.
4) let out key, then turn key to start.( no additional throttle should be needed to start)
Last edited by mxmike; 10-26-2014 at 05:56 PM. Reason: a
^This. Bulletproof engine, but finicky to start. Make sure the fuel lines from the tank to the engine are current ethanol resistant lines. Fuel lines from that time deteriorated from ethanol and would collapse, and pieces of it would clog the inline fuel filter and could damage the diaphram on the fuel pump.Originally Posted by mxmike
As others have said can be finikey to start but is a bullet proof engine. I have the same engine 95 model and so does my dad 03 model. Mine starts much easier than my dads and he struggles with his. I have never struggled getting his started. After a few lessons of what I do he has no troubles now.
I always back boat in and drop motor to level. I then prime the fuel bulb till hard and then a extra half squeeze. I push in the choke and count to four and with choke still pressed in I start cranking and motor starts at count 6 or 7. As soon as it starts I let off the choke. Yesterday it was really cold and it wanted to sputter and die. When it did this I bumped the choke to make it idle up.
THIS^^^ This starting procedure works wonders on any carburated outboard. I'd also let it idle a few seconds until the rpm's drop before backing it off the trailer.
"The man of system is apt to be very wise in his own conceit; and is often so enamored with the supposed beauty of his own ideal plan of government that he cannot suffer the smallest deviation from any part of it…He seems to imagine that he can arrange the different members of a great society with as much ease as the hand arranges the different pieces upon a chessboard.” Adam Smith, The Theory of Moral Sentiments
The key push in is an enricher not a choke.
I do as said above along with a few pushes as I turn key.
Mine kinda turns over, the starter whines, I get off then right back on and it starts every time.
2000, xr6 150 on 882.
**
Life is kinda hard but it's
better than the other options .. er ..option !
ive tried this procedure over and over before, i will try holding the key pushed for a longer time and ill let you know
My dads still struggles with this even using this procedure but it has made it better. The starter kicks out on him like it tried to start but didn't. He put a bigger battery on it and that has helped quite a bit. I know I have a 1,000 cca battery and that can make a big difference because the xr6 has a pretty high compression.
ill will deffinetly take a look at my starting battery, its new but still maybe isnt strong enough!
I have the same motor and the procedure works (most of the time). make sure your primer bulb is super hard. You shouldn't be able to pump it anymore. That usually works for me. Also, Check out the Mercury motor forum.
Good luck
My XR series motors all liked to have two quick pumps to the peddle(just a tad not to the floor) and then barely give it a touch of throttle and start(make sure it's not in gear!!).
My modified pro max's also start better doing this as well.
Also if you control has a fast idle lever it will help also on a cold engine ?
I've found that on colder mornings have to hold the choke in a little longer. If it's below 50 degrees I will count closer to 12 or 15. Once you learn the motors exact timing on choke it will fire right up.
I'm going out on the river tommorow, i will give it a shot
Xr6 has a enrich not a choke so holding it in doesn't help by pushing it in it gives it a squirt of fuel and that's all. Holding it in does not mean it will keep squirting fuel, it gives 1 squirt every time you push it in so multiple pushes gives it multiplease squirt holding it in just give gives 1 hope this helps
It has been a few years since I looked at mine but I think that holding it does help because the enricher is a solenoid valve that when the key is pushed allows fuel to flow to the carbs. The longer you hold the key the more gas flows....could be wrong just seems that is how I remember it
22R
Allison XB2002 / Merc 150 XR6
I had my old Xr6 in the shop before I sold it and I saw the mechanic push it in several times before cranking it. I always assumed it kept squirting if you held key in, he quickly informed me and explained to me that I was wrong then showed me that it only puts 1 squirt in every time key was pushed in
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