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This is all I see in post 10. And would a compression check tell me anything and if so what should the compression be?

Well I'm not sure where to go now with the backfiring. Coils been replaced carb cleaned new spark plugs ran sea foam through system

Is this the SAM ?

Just found a Sam module on eBay for 55 bucks so I ordered it and we'll see what happens

Ok 👌

What is SAM is that the ignition part that is impossible to find?

Ok I will take valve covers off and check that out

I have no history on it just bought it.

Yes it was good

Are perfect fit

I bought them at Amazon but sent them back and got a different brand same exact part number and everything and they came and ate the perfect fit now. Unfortunately it's still backfires

I ended up getting a different coil mind you it was the exact same part number but it was the right fit this time

Ok I'll see about checking that. I am putting it back together today

Don’t know much about it. I just bought it. Thinking it was a simple fix. it will idle ok and then when you give it a little gas it’s starts to backfire literally flame shooting out the carb through the air cleaner

Yeah I'm not having any luck finding that it's spark advanced module. So just my luck I find a lawn mower and it's between years so parts are hard to get. So it's looking more like this thing's going to just be junk versus a new lawn mower for me this spring.

Got some different coils today same part number but the ones that came today are a perfect fit. So if this does not fix it the spark module will be next 👍

So I should make my ID tag private? And I am new to this site even though I've joined many years ago I had just bought this riding lawn mower and I noticed it had a Miss fire literally shooting flames out the carburetor. So with everything I read the coils were the best thing to start with now...

Yes they are hitting on the intake manifold and I only need a couple millimeters the other side is fine so that's why I was asking if I just could grind down I guess the cooling fins on the coil a couple millimeters on that back corner

Part number 24-584-36-S

So how do I make phone images smaller to send?

At work now I’ll send that when I get home thanks

Then it’s probably the intake manifold lol I’m trying to post a picture but it says file too large and I can crop the screenshot any smaller than I can right now

I’m Actually doing this from an iPhone

Then it would be the intake manifold

Yes they are aftermarket coils the local Kohler dealer wanted $100 per coil and I got two of them for $35 on Amazon and I always wondered about the s I asked the dealer about that and they said it means single

I'm actually doing this from my iPhone

Backside of the ignition coil Hitting the exhaust manifold pipe

It’s not the cover it’s hitting it’s the exhaust or intake manifold pipe I wouldn’t be grinding the front part that touches the flywheel it would just be the back corner a couple millimeters grind it off to fit from stop hitting the manifold pipe

Why does it keep saying upload file is too large it’s a simple picture that cropped to the smallest and I can add a picture

Our local Kohler dealer wanted $100 for one coil versus two of them for 36 bucks on Amazon yes they are a bit bigger therefore it’s hitting I believe the exhaust manifold pipe but also The length is making it hit the exhaust manifold even though the part is supposedly correct and I’ve called...

Yes they are hitting the intake manifold actually the exhaust

As you can see in the picture the depth Bigger so the backside of the coil is the exhaust manifold

I have a Kohler 24 HP Vtwin riding lawnmower with a CV25S motor I bought new ignition coils for it and was told they are the correct ones but they do not fit they are a little bigger I was wondering if I could grind down a little part of the back of the ignition coil for it to fit.