Max rpms are only 4200 when wide open. 2001,115 yamaha

[TownsendsFJR1300]

There's TWO carbs, I gather you did both?

[Mr.nitrox]

Yes, there are two double barrel carbs and there are two main jets in each that removed and cleaned. And two other small jets just in front of the main two that i didnt remove.

[panasonic]

My two cents....

Prop is easy to change, one cotter pin, one nut and a bit of grease.

I don't know how your shops work in your locàtion, but here they will let you purchase a prop, try it and see if it is the correct one....or at least your RPM is going in the right direction..

If it isn't correct and not damaged they will take it back and refund your money. Try another size till you get the right one.

Nothing to lose except a little time and some gas for your trip to the store.

I vote for changing the prop.

[pstephens46]

Whatever is convenient...

Where does Mr Nitrox live?

Scuba diver?

[Mr.nitrox]

I appreciate the advice and will call around tomorrow to see if any shops have that kind of policy.
And yeah love to dive but this year have been getting back into flats fishing with this boat. Im in st.pete

[pstephens46]

Plenty of resources to choose from down there.

[TownsendsFJR1300]

Heck, Jason's close to you(Tampa), his prop might fit....

[Mr.nitrox]

Just wanted to update the thread. I finally tested the outboard with a different prop. I bought a yamaha 13×19 3 blade on craigslist. I got it to 5200 and my top speed is a up around 5mph too. I didn't open it up completely, didn't want to push it the 1st test run. But I got it almost wide open and my question seems to be answered. Thanks for the advice!

[rodbolt17]

myself?
I would simply use test wheel YB1624 and see if it can spin it at 4900-5100.
if it will motor is good.
if it wont you masked a problem.

[dray0151]

myself?
I would simply use test wheel YB1624 and see if it can spin it at 4900-5100.
if it will motor is good.
if it wont you masked a problem.

Rodbolt will YB1624 fit any yamaha of only the F115? I had been looking for a test prop for my F115 TLRC for some time

[rodbolt17]

YB1624 works on the F115. RPM should be 5600-5800 RPM on the F motor.

[dray0151]

any suggestions on where to find one even for purchase? I've not found a source?

[rodbolt17]

Yamaha quit making them.
you may find one on ebay.

[dray0151]

I'll keep looking. Thanks.

[99yam40]

YB1624 works on the F115. RPM should be 5600-5800 RPM on the F motor.

I find it interesting that the F115 should turn it faster than the 2 stroke 115