[danbaldwinbuilders]

no spark, no access to the manuals yet, when the helper needs help it's sad but I'm trying to reach out for any advice, new module and coil and battery, plugs. Should I get him to rework the wires. Where is the condenser on this thing?
Any engine diagrams would be helpful for this onan MS/2434C.

 

[danbaldwinbuilders]

Welcome!

That wiring has obviously had some repair work done, but as long as it's feeding 12V to the positive coil terminal with the key in the run & crank positions, you can rule it out as the source of the no spark condition.

That engine will have points and a condenser located on top of the engine in a box right behind the carburetor. It will probably be the style where you have to remove a cover plate on the back side of the box to gain access to the points & condenser. I believe removing the battery will give you better access. Or if you're lucky it might have the type where you remove a single screw from the top and lift the cover off the points & condenser (that style gives you better access and is easier to adjust the points).

But with either style, you'll want to check the condition of the points, check the points gap (I think it's supposed to be 0.025" for the BF), and check the condition of the wire that connects them to the coil to make sure the insulation isn't damaged and shorting to ground where it passes out through the points box. Also, if you need to replace the condenser it doesn't necessarily have to be put back inside the box ... you can put it up near the coil and connect it to the negative terminal (just make sure it's securely mounted so it has a good ground).

I will start with your thankfully detailed instructions I have limited time to spend and will post the progress thanks so much

 

[danbaldwinbuilders]

Welcome!

That wiring has obviously had some repair work done, but as long as it's feeding 12V to the positive coil terminal with the key in the run & crank positions, you can rule it out as the source of the no spark condition.

That engine will have points and a condenser located on top of the engine in a box right behind the carburetor. It will probably be the style where you have to remove a cover plate on the back side of the box to gain access to the points & condenser. I believe removing the battery will give you better access. Or if you're lucky it might have the type where you remove a single screw from the top and lift the cover off the points & condenser (that style gives you better access and is easier to adjust the points).

But with either style, you'll want to check the condition of the points, check the points gap (I think it's supposed to be 0.025" for the BF), and check the condition of the wire that connects them to the coil to make sure the insulation isn't damaged and shorting to ground where it passes out through the points box. Also, if you need to replace the condenser it doesn't necessarily have to be put back inside the box ... you can put it up near the coil and connect it to the negative terminal (just make sure it's securely mounted so it has a good ground).

I just tested for 12v at the coil and the voltage drops to 8 then 2 does that mean it's the ignition or the wiring, can I jump it maybe from the battery?

 

[danbaldwinbuilders]

Thank you again I appreciate your guidance, I think I will rework the wiring since I don't know who made the connections, I did ohm out every one but some have more than one splice. I will go through the testing process again and see if I can get a spark with the jump. Do you know the spark plug gap setting? The owner put them in without checking the gap I think I should double check, Have a great weekend!!!