Spark Plug Keeps Getting Fouled

[Chainlube]

If I lived off in no mans land I would use synthetic oil, just because of the shipping. But here in Q public I use dino oil, it's cheap and on the shelf.

 

[Frogslayer]

If I lived off in no mans land I would use synthetic oil, just because of the shipping. But here in Q public I use dino oil, it's cheap and on the shelf.

It's funny when people call it "dino" oil lol.

 

[YetiWoodz]

Before, I had a 70 jet in and it worked good, now I decided to try a 65. I reached about 500 more rpm. Here's a pic of the spark plug, it looks better, dark brown, should I try going smaller or is this perfect?

 

[Tyler6357]

Before, I had a 70 jet in and it worked good, now I decided to try a 65. I reached about 500 more rpm. Here's a pic of the spark plug, it looks better, dark brown, should I try going smaller or is this perfect?
View attachment 94516

I usually jet down until it stops 4 stroking, that is usually the right one.

 

[Ahmet]

I usually jet down until it stops 4 stroking, that is usually the right one.

That's what i did in the past.

 

[Frogslayer]

I jet my to four stroke if you pin it with the clutch in. Under load it runs great. It's custom reamed so i can't tell you the size.

 

[Ahmet]

Before, I had a 70 jet in and it worked good, now I decided to try a 65. I reached about 500 more rpm. Here's a pic of the spark plug, it looks better, dark brown, should I try going smaller or is this perfect?
View attachment 94516

It looks good. I'd stop there.

 

[HumanPerson]

Before, I had a 70 jet in and it worked good, now I decided to try a 65. I reached about 500 more rpm. Here's a pic of the spark plug, it looks better, dark brown, should I try going smaller or is this perfect?
View attachment 94516

Looks alright Yetibug

Depending on your needs, it could be a little darker, just my own honest opinion.

How are you holding up through this stupid stuff?

Ride Safe!

HP

 

[Ahmet]

Looks alright Yetibug

Depending on your needs, it could be a little darker, just my own honest opinion.

How are you holding up through this stupid stuff?

Ride Safe!

HP

Totally agree!