I would greatly appreciate some help from the Mercury experts.
I've seen about a dozen related postings here on iboats on this motor family, and one or two had a similar situation to me,
but sadly never got an answer (from approximately 2 years ago.)
I also saw a good thread from an individual in a similar situation and it appears that after his carb rebuild, all he really needed to do was adjust his idle screw.
A few months back I bought in 1970 Mercury 9.8 110. (S/N 28484XX) It was amazingly clean and I was thrilled to purchase it.
I have run it about five or six times this month (20 - 30 minutes at mid and high speed) and while it often takes four or five pulls to start, it ran strong.
During a past weekend I went out to start it and all seemed normal at first, as I was idling away from shore the motor died.
After numerous attempts to restart I gave up... I came back in the middle of the bright sunny afternoon and tried again with no luck.
I took the gas tank out and put fresh fuel mix in - also with no luck so I pulled the motor back to my work area and looked it over.
As I pulled the plugs they seemed perfectly normal so I assumed I had a carb problem .
This weekend I opened up the carb and rebuilt it and I was surprised to see that everything is pristine except for just a tiny bit of sediment on the outside of the filter. I proceeded to remove the main jets the idle tube, and gave everything a very good cleaning. I tested the fuel pump and saw that it also works well.
After reassembling everything, I still cannot get it started.
I pulled the plugs again cleaned them, laid them against the block and verified I am getting a good spark.
I put it all back together and tried just a tiny bit of ether to see if it would fire, and it did not.
So I'm stumped, (and truly miserable!!)
I would greatly appreciate any any any guidance you may have.
I do have the Seloc manual for this motor and based on other threads I verified that the kill switch is functional and that all wiring appears to be in good shape.
In the short time that I had it the motor ran fine and has never been dropped abused flooded etc. etc.,
It did sit locked on my Jon boat for a couple of weeks but I do not think there are any moisture issues. - It has been inside for a week with the same symptoms.
I really really really do not want to pull the flywheel as we think the spark is good.
Thanks in advance for any help insight or guidance regards
? Tom
I've seen about a dozen related postings here on iboats on this motor family, and one or two had a similar situation to me,
but sadly never got an answer (from approximately 2 years ago.)
I also saw a good thread from an individual in a similar situation and it appears that after his carb rebuild, all he really needed to do was adjust his idle screw.
A few months back I bought in 1970 Mercury 9.8 110. (S/N 28484XX) It was amazingly clean and I was thrilled to purchase it.
I have run it about five or six times this month (20 - 30 minutes at mid and high speed) and while it often takes four or five pulls to start, it ran strong.
During a past weekend I went out to start it and all seemed normal at first, as I was idling away from shore the motor died.
After numerous attempts to restart I gave up... I came back in the middle of the bright sunny afternoon and tried again with no luck.
I took the gas tank out and put fresh fuel mix in - also with no luck so I pulled the motor back to my work area and looked it over.
As I pulled the plugs they seemed perfectly normal so I assumed I had a carb problem .
This weekend I opened up the carb and rebuilt it and I was surprised to see that everything is pristine except for just a tiny bit of sediment on the outside of the filter. I proceeded to remove the main jets the idle tube, and gave everything a very good cleaning. I tested the fuel pump and saw that it also works well.
After reassembling everything, I still cannot get it started.
I pulled the plugs again cleaned them, laid them against the block and verified I am getting a good spark.
I put it all back together and tried just a tiny bit of ether to see if it would fire, and it did not.
So I'm stumped, (and truly miserable!!)
I would greatly appreciate any any any guidance you may have.
I do have the Seloc manual for this motor and based on other threads I verified that the kill switch is functional and that all wiring appears to be in good shape.
In the short time that I had it the motor ran fine and has never been dropped abused flooded etc. etc.,
It did sit locked on my Jon boat for a couple of weeks but I do not think there are any moisture issues. - It has been inside for a week with the same symptoms.
I really really really do not want to pull the flywheel as we think the spark is good.
Thanks in advance for any help insight or guidance regards
? Tom
