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Outrage 18 w/ Yamaha 115, loss of speed, no loss of RPM
mazarate	#21  Posted on 07/21/12 - 7:56 AM
Member Posts: 18 Comments: 0 Joined: 03/12/09	Ok, so getting a new prop, but the shop pointed out something we didn't realize, and something I thought wasn't a huge deal. Barnacles! We keep the boat in the water most of the summer,and last year barnacles weren't an issue. After pulling the boat last week we saw that they have definitely started to cover the bottom. My question now is, could barnacles cause such a loss in speed, and could they have taken over in a week or two? Again to the point where it's hard to get on plane, and I get no noticeable increase in speed from 4400rpm to 5600rpm? The shop seems to think so. It is running a bit louder, where as before you couldn't tell it was on at idle. Might have em clean the fuel injectors before I pick it up.
kamie	#22  Posted on 07/21/12 - 9:36 AM
Member Personal Page Project Albums Posts: 2975 Comments: 3 Joined: 11/04/05	mazarate wrote: We keep the boat in the water most of the summer,and last year barnacles weren't an issue. After pulling the boat last week we saw that they have definitely started to cover the bottom. . I am going to guess you don't have bottom paint? It's a must where you are if you leave the boat in the water. Last year there was a lot of rain, so the fresh water kept the barnacles down, this year we have had very little rain. Where I am, we have had rays and jellyfish since mid June, usually they don't show this far up river until mid-late July
mazarate	#23  Posted on 07/21/12 - 10:31 AM
Member Posts: 18 Comments: 0 Joined: 03/12/09	It's painted, but was painted the beginning of last summer. We kept it on the lift all winter, and no noticeable barnacles before putting in this summer. Definitely had some coverage when we pulled it out. Probably going to scrape sand and repaint before putting it back in. Edited by mazarate on 07/21/12 - 10:31 AM
Dave Wheeler	#24  Posted on 07/21/12 - 2:49 PM
Member Posts: 31 Comments: 0 Joined: 01/07/08	DO NOT waste any more time or $ on this until you clean and repaint the bottom. Barnacles are devastating to the performance of your boat.
Tom W Clark	#25  Posted on 07/21/12 - 3:29 PM
Member Personal Page Posts: 4280 Comments: 7 Joined: 09/30/05	I totally agree with Dave. If there are barnacles, all bets are off.
mazarate	#26  Posted on 07/28/12 - 1:01 PM
Member Posts: 18 Comments: 0 Joined: 03/12/09	Update for you....got the boat back, scraped, sanded and repainted the bottom. Put her in today and she's running good. Speed back up and no issues. Though, I do think the motor's running a bit rough. She used to purr at idle to the point where you couldnt tell it was on. Now it's a bit louder. Gonna get it serviced in the winter, but for now we're back in business. Thanks to all for your help and advice.