Wisconsin Robin no spark

[Az Shadeguy]

I have a EY27W code 800144 engine that came off a mortar mixer . It has no spark where do I start?.
The points are smooth no pitting.

[RoyM]

Did you try sliding a business card between the contacts with the points closed? This will clean off any contaminants. Disconnect the shut off to eliminate possible problems with a bad switch or low oil shutdown if it has one. If all else fails the coil is pooched.

[Skywatcher]

Hi Az

Sounds like an older engine if it has breaker points. First this I would do is to isolate the ignition and run resistance checks on the primary an secondary circuits. Sparkplug lead to laminations should be in the 3,000 to 7,000 ohm range, that's the secondary circuit. The thin wire that goes to the breaker points to the laminations should be in the 0.5 to 3.0 ohm range.

Next, check the breaker point gap, Haynes manual says 0.014". Take a 0.012" feeler gauge and a 0.016" gauge, if the .012" fits and the .016 does not, you're probably close enough. Isolate the points from the coil and the condenser, use your ohm meter between the moving point and the engine frame to see that the points are actually making and breaking contact.

Check the flywheel to ignition coil air gap, Haynes manual says 0.012" to 0.020". Also, check to make sure the flywheel key is not partially or fully sheared. Finally, check the condenser. Touch the condenser across a 12 volt battery for ½ a second and remove. Take your multimeter set on volts DC and measure the stored voltage in the condenser. You should see about 6 volts to start and the voltage gradually drop as the condenser discharges through your volt meter.

If everything checks out, you should be able to reassemble the ignition system and have spark. If the coil or condenser do not check out, replace. If the points do not check out, clean or replace. Hope this points you in the right direction. All the best,

Sky

[KE4AVB]

I think it going to hard to set the coil air gap since in under the flywheel.

This engine had two different point coils depending on the serial number, 207-70102-08 prior to serial 75320 and 213-70130-18 serial number 75320 and up. One problem however both are NLA new and it a slim chance that you might find one in NOS.

Also check to see the plug cap terminal end is not rusted up.

[Az Shadeguy]

Hi Az

Sparkplug lead to laminations should be in the 3,000 to 7,000 ohm range, that's the secondary circuit. The thin wire that goes to the breaker points to the laminations should be in the 0.5 to 3.0 ohm range.

Sky

I get a zero reading between the coil laminations and the spark plug wire

[Skywatcher]

Hi Again Az

By a zero reading, I'm assuming infinity which would mean open circuit as opposed to zero ohms which would mean a dead short. Either way, it sounds like you have a dead ignition coil. It appears this coil is no longer available, so unless you can find a used one through eBay or somewhere like that, you have a dead engine. A Google search lead to various forums all looking for the same part. Best of luck,

Sky

[Az Shadeguy]

Sky

Yes I don't know what to call it. The meter did not register anything.
There is a coil on Ebay from China. The wire that goes to the points is on the wrong side but might work.
https://www.ebay.com/itm/IGNITION-COIL- ... C&LH_BIN=1

This engine is missing the air filter housing and the front crank seal is shot.
What are the chances that the gear reduction box will fit a Honda gx240?

[KE4AVB]

depends if you using a digital or analog. On digital meters is usually OL (overload indication) or the infinity symbol on analogs. When in ohms scales either it is an open circuit or higher resistance than the meter can read in the particular range. Older meters had different ranges where many newer digitals are auto ranging.

[Az Shadeguy]

Well the gear box will not fit on a Honda. The crankshaft is splined on the engine

[Az Shadeguy]

It bolts up to a Honda crankcase.
Does Honda offer a crankshaft with a splined end?