yamaha F150 and a 20' seacraft
 

is a F150 to heavy for a 20' open transom that has been raised? The boat has a 135 optimax on it now.

Re: yamaha F150 and a 20' seacraft
 

I have a 150 merc. and it is now prob. and my transom is original.

Re: yamaha F150 and a 20' seacraft
 

I mean it is NO problem!

Re: yamaha F150 and a 20' seacraft
 

no prob...i have a 150 merc....thats almost to light! :D

Re: yamaha F150 and a 20' seacraft
 

You'll be fine, i have a 225 efi merc on my original transom and floats fine

Re: yamaha F150 and a 20' seacraft
 

I ran a 225 hp merc laser and a 200 mariner on mine with now issue. Not sure how the weight compares. I did see a guy in the Keys with a 250 Yamaha that sat a bit low at idle but no issue around 60+MPH.

Re: yamaha F150 and a 20' seacraft
 

I have a 2005 4-stroke Yamaha f150 on my 1986 20 CC. Its probably the limit as far as weight goes, but the boat moves well. 40 MPH at 5100 rpms on the GPS.

Re: yamaha F150 and a 20' seacraft
 

I had a carbed 6 cyl Yamaha 175, weighed about 419lbs on my 20 with a 25" transom. The boat ran great with it though the engine may have been a little heavy when stopped. Two people in the stern and water would come in the scuppers, but the power was great. It jumped up on a plane almost instantly.