Bayliner 195 4.3 190HP Need help

[vaidasvingras]

OK i just bought Bayliner 2007 195 4.3 190 HP. It has a 14.5 x 19 prop and Boat tops at 41 MPH, i had GPS on it it shows Same... and it does about 4800-4900 RPM. This boat was Standing in storage since 2008... It had less then half tank of gas i put about 20 Gallons on it new one ... What can be wrong with this Boat maybe gas is to old ???? or any have idea what problem can be?? i now Boats like this have to top about 48-50 MPH. Anyone can help? Thank you....

 

[Bondo]

Re: Bayliner 195 4.3 190HP Need help

OK i just bought Bayliner 2007 195 4.3 190 HP. It has a 14.5 x 19 prop and Boat tops at 41 MPH, i had GPS on it it shows Same... and it does about 4800-4900 RPM. This boat was Standing in storage since 2008... It had less then half tank of gas i put about 20 Gallons on it new one ... What can be wrong with this Boat maybe gas is to old ???? or any have idea what problem can be?? i now Boats like this have to top about 48-50 MPH. Anyone can help? Thank you....

Ayuh,... Welcome Aboard,....

You can try a 21" prop, 'n see what ya get....

I think 50mph is Dreamin' though...

 

[oldjeep]

Re: Bayliner 195 4.3 190HP Need help

40ish sounds about right, did you ahve it trimmed properly? The "Classic" version of that boat runs about 40mph with a 3.0L, but also weighs about 700lbs less.

 

[pat8839]

Re: Bayliner 195 4.3 190HP Need help

I have this boat (2006 version) with the same engine. With an aluminum 3 blade 19" prop I have been up to 46.5mph. I changed to a 21" 5 blade prop and now my top speed is around 42mph. The 19" prop would allow me to over rev my engine so when I went to the 5 blade, I went to 21". These measurements are with 35gal of gas and only 2 people on board.

Did you drain out the old gas?

 

[stubbsboogie]

Re: Bayliner 195 4.3 190HP Need help

I definatly think you should get more out of the boat. But not 50. I am running a 20p SS and the best I can get is about 45-46, my boat is a bit heavier than yours. I tried a 19 on my boat and it was way over revving. (same engine) Make sure that your tach is correct also. Trim it up properly, and see what you can get. Good luck.

 

[hostage]

Re: Bayliner 195 4.3 190HP Need help

I have a 19ft Maxum w/ a 4.3L @ 190hp. Maxum was owned by Brunswick, who owns Bayliner, so there will be some similarities. I have seen about 44-45mph on GPS, I also think 50mph is a pipe dream, unless u get a v8. I got that speed w/ a Bimini stowed in the up right position. If I took it off, it might give me 1 more mph.

I just found this out, but for now on I am keeping my boat at about half tank. Less weight; a full tank of gas weighs about 210lbs for my 35gal tank. Also if you have a bimini top take it down. Try closing your windshield or opening it. Mess around a little bit. Also if you are going against a current or wind, that could effect your GPS speed.

 

[Don S]

Re: Bayliner 195 4.3 190HP Need help

You are under propped a little bit. Your WOT range is 4400 to 4800, going to the next higher pitch should get your rpm in spec, and increase your speed a bit. Adjusting your trim is an ongoing process, don't just go by the gauge, experiment with different settings.

 

[Tail_Gunner]

Re: Bayliner 195 4.3 190HP Need help

Well lets look at it for a moment.

1. How many people were aboard when you took your readings.
2. plz post your gearing it should be stamped on the outdrive leg
3. 2008 and it had gas in it...dump it and start over....be ready for a carb clean the carb is probably full of varnish.
4. i assum it is a 3 blade alum
5. it would not hurt to change your plugs...about 25 dollars
6. hope to hear from you and yes that boat should swing 50 with 2 people.

 

[wired1236]

Re: Bayliner 195 4.3 190HP Need help

Like others have said - more information on the prop and gearing of your outdrive. My 185 4.3GL volvo SX (1.79 gearing ratio) usually does 48mph with a 19" four blade SS at 4600rpm (which should be your top RPM too but check your manual) with gas and 2-3 people in it. I can push it up to a little higher RPM (~4800) but don't. I like the holeshot of the 19" so I just keep the RPM in check while going fast. My 21" alum does +/- 1mph at the top. I would think if the 21" was a SS then I would get around 50mph but loose my holeshot compared to the 19" SS so I keep the 21" aluminum as a backup.

Anyway, your boat is 1' longer but I think if we knew more about your prop and gearing, we can tell you if there is a problem or suggest another prop. My guess is the prop is an aluminum 3 blade and it's holding you back a bit.

 

[vaidasvingras]

Re: Bayliner 195 4.3 190HP Need help

40ish sounds about right, did you ahve it trimmed properly? The "Classic" version of that boat runs about 40mph with a 3.0L, but also weighs about 700lbs less.

Yes people with 3.0L do about 41 MPH its 4,3 and i do same its not right i just called bayliner and they say speed range for this boat 48-51

 

[vaidasvingras]

Re: Bayliner 195 4.3 190HP Need help

Hello!
IT was me and my GF on Board... i just changed bran new plugs nothing changed... yes its 3 blade alum... and i just called Bayliner Dealer and they told me same thing this boat with this engine should go 48-51 miles range... i have more then half tank left ill try to dump it somehow..... after 40mph engine just make more noise then gives me any speed or power everything below 35 it rides nice no problem i now its something wrong but i need to figure out
Thank you so much for your help

 

[vaidasvingras]

Re: Bayliner 195 4.3 190HP Need help

Well lets look at it for a moment.

1. How many people were aboard when you took your readings.
2. plz post your gearing it should be stamped on the outdrive leg
3. 2008 and it had gas in it...dump it and start over....be ready for a carb clean the carb is probably full of varnish.
4. i assum it is a 3 blade alum
5. it would not hurt to change your plugs...about 25 dollars
6. hope to hear from you and yes that boat should swing 50 with 2 people.

Hello!
IT was me and my GF on Board... i just changed bran new plugs nothing changed... yes its 3 blade alum... and i just called Bayliner Dealer and they told me same thing this boat with this engine should go 48-51 miles range... i have more then half tank left ill try to dump it somehow..... after 40mph engine just make more noise then gives me any speed or power everything below 35 it rides nice no problem i now its something wrong but i need to figure out
Thank you so much for your help

 

[vaidasvingras]

Re: Bayliner 195 4.3 190HP Need help

Like others have said - more information on the prop and gearing of your outdrive. My 185 4.3GL volvo SX (1.79 gearing ratio) usually does 48mph with a 19" four blade SS at 4600rpm (which should be your top RPM too but check your manual) with gas and 2-3 people in it. I can push it up to a little higher RPM (~4800) but don't. I like the holeshot of the 19" so I just keep the RPM in check while going fast. My 21" alum does +/- 1mph at the top. I would think if the 21" was a SS then I would get around 50mph but loose my holeshot compared to the 19" SS so I keep the 21" aluminum as a backup.

Anyway, your boat is 1' longer but I think if we knew more about your prop and gearing, we can tell you if there is a problem or suggest another prop. My guess is the prop is an aluminum 3 blade and it's holding you back a bit.

i have 14.5 .19 Prop and 4.3L Mercruiser 190 HP This is Stock prop on Bayliner...

 

[Tail_Gunner]

Re: Bayliner 195 4.3 190HP Need help

At the back of the prop you will notice a large nut. Draw a line one the nut and on the prop in one continouis line..make a run with the boat and check that line to see if it still line up. If it has moved you have a sun hub and need a new prop. I guess it could also be a coupler spinning ...you may want to post in the I/O section and see if a coupler can behave in such a manner.


after 40mph engine just make more noise then gives me any speed or power everything below 35 it rides nice no problem

Something is slipping

 

[fossill]

Re: Bayliner 195 4.3 190HP Need help

i have 14.5 .19 Prop and 4.3L Mercruiser 190 HP This is Stock prop on Bayliner...

Most boats that size/engine/outdrive combo come with a 14x23, 3 blade aluminum Merc prop from the factory. At least the ones I've been seeing in the showrooms the last several years. If you're at 4900rpm, you're underpropped with that 19 pitch and why you're only going 41mph. Keep in mind though that you wont get 50 mph and super hole shot at the same time if you prop up.

 

[fossill]

Re: Bayliner 195 4.3 190HP Need help

My apologies, I thought we were talking about the 185 model. Disregard the above.