Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: motor quits when put ingear
Posted by hillsroadal on 06/15/13 - 4:35 PM
#1
i have a 2003 yamaha 50 highthrust 4 stroke idles perfect will go to max rpms once its put in gear it quits any ideas
Posted by Phil T on 06/16/13 - 10:03 AM
#2
Is it carburated or EFI?
If carb'ed I would say they need to be cleaned.
Posted by tedious on 06/17/13 - 5:05 AM
#3
It could be anything - any motor will rev up with no load on it. You need to give additional details, such as when it was last running, any changes or service history.
Tim
Posted by Tom W Clark on 06/17/13 - 7:27 AM
#4
NEVER exceed 2000 RPM with the motor in neutral unless you want to destroy it.
Posted by tedious on 06/17/13 - 11:17 AM
#5
Tom W Clark wrote:
NEVER exceed 2000 RPM with the motor in neutral unless you want to destroy it.
Tom, isn't that potential runaway condition specific to two-strokes?
Revving a motor to redline with no load doesn't seem very smart anyway - and it doesn't tell you anything, as the original poster found out.
Tim
Posted by jamesgt727 on 06/17/13 - 1:15 PM
#6
Do lower units / gear cases ever cease?
Posted by Tom W Clark on 06/17/13 - 4:38 PM
#7
Tim -- Applies to four strokes as well.
Posted by hillsroadal on 06/18/13 - 3:04 PM
#8
engine is carburated had the carbs overhauled by pro no problems with with the bottom end could it be the fuel pump by the way its on a 15.5 sport cc1983 in great shape, like to put photos up under projects if i can figure out how
Posted by tedious on 06/18/13 - 7:47 PM
#9
Seems like the first thing to work on is finding a new "pro" since this one left you with a broken motor.
But again, if you provide more information, such as when it was last running OK and what happened since then, someone might be able to help. Otherwise it's just a guessing game.
Posted by mtown on 06/19/13 - 6:02 AM
#10
Literally just guessing but couldn't it be that something is wrong with the shift mechanism that will not let the motor start while in gear.