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new AR195 with questions

Midnight2V

Jet Boat Junkie
Messages
140
Reaction score
88
Points
127
Location
Houston Area
Boat Make
Yamaha
Year
2022
Boat Model
AR
Boat Length
25
Kyle, don't worry too much. If you're happy, let it ride. The SVHO engine is indeed a great engine.

Druppert, everything you said is spot on. Yamaha builds great performing, reliable, low maintenance engines. These engines do have far more potential than what they are limited to from the factory, and my own boat is just one of many examples that show this to be true. I never meant to suggest otherwise and I apologize if that's the way I sounded.
 

kyle

Jet Boat Junkie
Messages
126
Reaction score
88
Points
137
Location
independence, ky
Boat Make
Yamaha
Year
2017
Boat Model
AR
Boat Length
19
So here is an update. I was right at ten hours so I went ahead changed the oil and set out this morning to do some test runs with an empty boat and practice my docking skills at the marina. Also took out a bunch of crap from under the seats that we thought we would need that come to find out we didnt. Just me and my 7 year old on the Ohio river. It was super calm and almost no wind, 93 degrees air temp with 82 degree water temps. We did countless top speed runs and beat on it pretty good to see if indeed when heated up it would slow down. We reached 51.6 mph on GPS up river and coming back down hit 52.9 at 7450 rpms. Never once did I see a decrease in power. So it is obvious that the way the boat is loaded and how much weight in particular spots affects everything. I can deal with losing ten mph with a maxed out boat. I feel much better. Thanks to everyone in this thread that offered up advice. Even though nothing was wrong, you guys are awesome and very helpful.
 

druppert

Jet Boat Addict
Messages
147
Reaction score
142
Points
112
Location
Tampa, FL
Boat Make
Yamaha
Year
2017
Boat Model
SX
Boat Length
19
Awesome news indeed! Going 50+ with that many people on a 19' is probably a questionable decision anyway
 

jEt_jAk

Jetboaters Commander
Messages
813
Reaction score
909
Points
197
Location
SoCal
Boat Make
Yamaha
Year
2018
Boat Model
AR195
Boat Length
19
I noticed that on quick burst it will go up to 7500RPM+ but will settle to around 7200 RPM. I think it's somewhat related to water/air temp as I remember it being higher during non summer months. Still testing. Even at 7200 RPM it's still hitting 50MPH so I dunno?
 

haknslash

Jetboaters Fleet Admiral
Messages
7,556
Reaction score
8,950
Points
547
Location
Lake Martin, AL
Boat Make
Moomba
Year
2019
Boat Model
Other
Boat Length
23
I noticed that on quick burst it will go up to 7500RPM+ but will settle to around 7200 RPM. I think it's somewhat related to water/air temp as I remember it being higher during non summer months. Still testing. Even at 7200 RPM it's still hitting 50MPH so I dunno?
That's normal. My RPMs may fluctuate based on humidity, air/water temp or a slew of other factors but my top speed remains consistent 48-49 mph (gauge indicated).
 

jEt_jAk

Jetboaters Commander
Messages
813
Reaction score
909
Points
197
Location
SoCal
Boat Make
Yamaha
Year
2018
Boat Model
AR195
Boat Length
19
Interesting... it is 114+ degrees here so that might be why :)
 
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