Next size richer jet #53 V-4 looper

[hevysrf]

I'm planning on a rebuild of my 'O4 Johnson 90. I've heard you need to run richer after rebore. what is the next size up from #53 0321297?

[Merc 2.5]

If your rebuilding back to factory pretty much , just run double oil for break in , there are many threads about how to break one in ,and will tell u step by step

[racer]

If just bored .030 over and no modifications to anything you IMO do not need to rejet.

[hevysrf]

Thanks, will be just a fishing motor.