Re: No Spark

[Bob]

I'd start with new breaker points.

 

[Tom N MS]

Do you have battery voltage to the coil? If so I"d check the points next.

 

[Tim Bozeman]

Just replaced the points, old points had no spark, these just have intermittent spark, coil showed 3ohm when i had it apart.

The battery was pretty weak, its charging now. Could it just be the weak battery getting drawn by the starter makes the voltage too low to spark correctly?

 

[JMOR]

(quoted from post at 12:27:04 05/14/11)
Just replaced the points, old points had no spark, these just have intermittent spark, coil showed 3ohm when i had it apart.

The battery was pretty weak, its charging now. Could it just be the weak battery getting drawn by the starter makes the voltage too low to spark correctly?

"Could it just be the weak battery getting drawn by the starter makes the voltage too low to spark correctly?"

Certainly.

 

[Den N Ms]

Clean the points with apiece of paper or dollar bill or replace and clean and set point gap .015

 

[Dell (WA)]

Tim.......after burned points, biggest cause of weak intermittant sparkies is yer weaksister ignition switch. ($10, cheap) ........Dell, yer self-appointed sparkie-meister

 

[souNdguy]

hotwire coil as a test for bad connections at switch and resistor ( if any on your system )..

past that.. if the points breakers are bad.. or the rubbing block is bad.. repalace.

are the dizzy bushing loose and worn?

post back

soundguy

 

[Tim Bozeman]

(quoted from post at 23:26:02 05/14/11) hotwire coil as a test for bad connections at switch and resistor ( if any on your system )..

past that.. if the points breakers are bad.. or the rubbing block is bad.. repalace.

are the dizzy bushing loose and worn?

post back

soundguy

I'll check the switch, points are brand new(standard brand) whats the rubbing block? Dizzy bushing? which one is that?

also found that the gas was sour, flushed it out with fresh stuff. i'll work on the other and post back

 

[Tim Bozeman]

There is 10ohm of resistance from the battery to the terminal on top of the coil,is that too much?

 

[JMOR]

(quoted from post at 21:42:57 05/14/11)
There is 10ohm of resistance from the battery to the terminal on top of the coil,is that too much?

bout 10 times too much, if you have a good measurement.

 

[Tim Bozeman]

Many thanks to all who helped, I cleaned and regapped each plug and checked fire on each. Still would not run so i pulled the carb and cleaned, there was about a half inch of rust in the bottom. I cleaned and reassembelled and she runs.

Only thing now is there is no oil pressure.... I pulled the feeder tube at teh govenor to make sure it wasnt just the gauge not working, no flow. I added 2qts of oil to get up to the full line. Is it possible to reprime the oil pump by filling the filter? i pummed the filter and only the very bottom is wet. Is there anything to try before dropping the oil pan?

 

[JMOR]

(quoted from post at 15:24:33 05/15/11) Many thanks to all who helped, I cleaned and regapped each plug and checked fire on each. Still would not run so i pulled the carb and cleaned, there was about a half inch of rust in the bottom. I cleaned and reassembelled and she runs.

Only thing now is there is no oil pressure.... I pulled the feeder tube at teh govenor to make sure it wasnt just the gauge not working, no flow. I added 2qts of oil to get up to the full line. Is it possible to reprime the oil pump by filling the filter? i pummed the filter and only the very bottom is wet. Is there anything to try before dropping the oil pan?

Hummmm... I assume that 10 ohm measurement must have been an error since it runs.
It is highly unlikely that you could prime the oil pump by filling the filter, because the path is so long & small and only minor gravity 'pressure'.
Prime at point shown in picture.

or if you can pressurize oil supply, maybe pump up garden sprayer:

 

[Tim Bozeman]

(quoted from post at 21:24:56 05/15/11)

(quoted from post at 15:24:33 05/15/11) Many thanks to all who helped, I cleaned and regapped each plug and checked fire on each. Still would not run so i pulled the carb and cleaned, there was about a half inch of rust in the bottom. I cleaned and reassembelled and she runs.

Only thing now is there is no oil pressure.... I pulled the feeder tube at teh govenor to make sure it wasnt just the gauge not working, no flow. I added 2qts of oil to get up to the full line. Is it possible to reprime the oil pump by filling the filter? i pummed the filter and only the very bottom is wet. Is there anything to try before dropping the oil pan?

Hummmm... I assume that 10 ohm measurement must have been an error since it runs.
It is highly unlikely that you could prime the oil pump by filling the filter, because the path is so long & small and only minor gravity 'pressure'.
Prime at point shown in picture.

or if you can pressurize oil supply, maybe pump up garden sprayer:

Great advice, many many thanks. I took loose the oil gauge line and ingected 3/4 of a qt of fresh oil with a lawn sprayer. had great oil pressure on start up. the 9n will run another season!

 

[JMOR]

Don't ya just love it when things all work out? I know I sure do!