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Jan 23rd, 2013
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2016 Yamaha SHO 200HP #13208050 07/08/19 05:53 PM
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FishinTime Offline OP
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Cliff notes. 25 Manitou tritoon would do 40mph with 200 SHO after breakin. After 2 1/2 years set docked at Twok it would only go 19 MPH at 4400 rpms. 4400 was max rpms.
Finally put it on the trailer and had it scraped/cleaned. Found the back 1/3 of the center toon was completely full of water. Syphoned it out, new in line fuel filter. Toons cleaned and about 700-900 pounds of water gone it ran29-30 mph and still only 4400 rpms. Has about 30 hours total on it. Wondering if the throttle linkage could have slipped? Any ideas. I know next to nothing about any kind of mechanics. Thank you in advance all.


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Re: 2016 Yamaha SHO 200HP [Re: FishinTime] #13208874 07/09/19 01:10 PM
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boatman025 Offline
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Might need to put a computer on it to see if any faults show up


Hughes Marine
3855 Osage Lane
Wylie ,Texas
Re: 2016 Yamaha SHO 200HP [Re: FishinTime] #13209063 07/09/19 03:15 PM
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FishinTime Offline OP
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Thank you I may have to take it in. Thing is it starts right up and has amazing hole shot I guess its called lol. Purrs like a kitten all the way to 4400 rpms. When I give it full throttle and let go of the handle, it slides back about 1/2 but remains at 4400 rpms. Was hoping the linkage might just need adjusting.


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Re: 2016 Yamaha SHO 200HP [Re: FishinTime] #13209885 07/10/19 04:13 AM
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SteezMacQueen Online Happy
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Linkage doesnt fall out of adjustment from sitting, unused.

Id advise to NOT run the motor until the issue is resolved.

I had a Yamaha that did something similar. It needed all filters (four of them) changed and the injectors thiuroughly cleaned. Runs excellently now. A lean cylinder, from a sputtering injector, has VERY EXPENSIVE results.


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Re: 2016 Yamaha SHO 200HP [Re: FishinTime] #13210582 07/10/19 08:10 PM
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FishinTime Offline OP
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Thanks for the advice guys. Looks like a check up is in its near future.


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