Aquasport 175 Osprey??

[beast819]

Rick I noticed that you are running a johnson 115 on your 170. How does it preform vs 90hp? I know both blocks are the same and was just curious to hear you and others opinions. Is it possible to modify the 90 with 115 carbs?

[RickK]

The 115 performs nicely - hovers at the 40mph mark.  She handles like a dream.  Never had a 90 on her, did have a 110 - no big change there.

[beast819]

Ok I got my photos to upload. Here is the unit I had to replace. The new one looked a little different. Instead of having a angled lever it had a straight 12" lever which I had to modify.

[JimCt]

Jeez, that one's been through the wars...  Looks like it put up a good fight getting it off.

[beast819]

Thank god for this guy....



I would have lost the battle if I didn't have this weapon.

[JimCt]

What's a real treat is when the Easy-Out busts off in the hole...

[beast819]

Took the boat out last night and ran the heck out of her through some nice consistent chop. Man this thing performs awesome under not so perfect conditions. I usually cruise around 20-24 when it is a bit choppy out but last night I was by myself and figured I wanted to see what this boat could do.  The ride felt much better at 30MPH than the slower speeds and plowed through all the waves like a champ. With a little bit of playing around with the trim I was able to top out at 38MPH on the fish finder. Wow what a difference it makes trimming you can feel the hull lift and less drag.  

However, I could not get a great RPM reading from my tach. At WOT it was decreasing to about 3900 and if I pulled back on the throttle the RPMs went up to about 4100-4200 ish. Seems very strange to me because I know at WOT the motor was definitely screaming much louder than when I pulled it back.  Actually now that i think about it I don't think the tach ever made it about 4300 RPMs. Hmmmmm.....

Anyways I figure I would share my little experience.

[swflcracker]

Did you trim it out once on plane?  My 90 tops out at about 38, on the GPS at about 5200 rpms.

[beast819]

yes i did trim. My tach seems to be inaccurate.

[beast819]

Has anyone upgraded or changed their prop on a 170/175 with a 90 johnson?  I'm wanting to hear some feed back on this topic.  Is there a prop that will preform better than the stock and so on....  Let me know your opinions cause I enjoy talking boats.

Thanks

[swflcracker]

My 1999 Johnson 90hp with the setup that I have, will run about 37-38 mph (on GPS) at 5200 top end with fuel, gear and three of us.  It currently has a 14 x 17 aluminum prop on it.  I will be interested to see what the Members say as I have been researching putting a Stainless steel prop on it.

[swflcracker]

Nice pix 8)

Hey anyone know if you can get these plastic trays from the factory or somewhere?  

Remember Ant, there is no "Factory" anymore.  We might see them in a surplus place down here (since they were made here) in the future though. If I see anything, I'll let everyone know.

Someone mentioned this earlier - have you tried to adjust the anode that is right above the prop - looks like a little skeg?  That might help with the lean.

Did you ever find new trays for the rear?

[beast819]

I have not heard from anyone yet???  It would be nice to get my hands on a pair or just one.


lol- looking at the photo more that is a dumb dumb place to put speakers. Who the heck thought of that position geez.

[RickK]

Helps drown out the noise of the engine

[beast819]

well my engine plays beautiful music @ WOT!!!   :P      :P