4stoke question

**RobAnderson** · 12-05-2019, 03:53 PM

Originally Posted by SeaRay

Thanks. Set at 360° mine reads fine at idle but maxes out at 2700 at WOT.
Set on 720° it bounces all over at idle, 800-200 RPMs.
Gonna recheck wiring and maybe put a pice of tape over wire wrap.
After talking to dealership they think a 15 SS prop will be fine the boat only weighs 600# without motor, batteries,etc.

You can get plastic wire loom pretty much anywhere and it makes it easy to shield it from the other wires

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**Mbsbeek** · 12-10-2019, 06:01 PM

So it's not a cavitation issue rite ?

**SeaRay** · 12-10-2019, 06:20 PM

Originally Posted by Mbsbeek

So it's not a cavitation issue rite ?

No, it attaches to a spark plug wire. I suspect the 16' lead I had them put on it may be the issue.

**Skippa Chippa** · 12-19-2019, 07:39 AM

I finally got to try the 15" wheel yesterday, the boat gained 2 mph " on my phone " and the tiny tach went to hell. It started giving good readings up to half throttle @ 3200 rpm's then would drop down to 2870 at WOT, gonna call Tiny Tach today and see what they have to say. I searched the web and found aftermarket tach I'm thinking about trying.

**SeaRay** · 12-19-2019, 08:33 AM

Skip, got my 15" SS installed and will test tomorrow. I bought this one after trying the 13" . My Tiny Tach worked one time and then it's back to doing same as yours.
My control box has tach leads somewhere. After Christmas I'm going to locates those leads and install a real tach.
I did this on my previous boat. Only problem is I don't have a dash to mount it so I need a stand alone type mount.
Let me know what Tiny T. has to say.

**Cray** · 12-19-2019, 11:20 AM

Ray, when you decide on tach you might look at something like this for a mount.
Universal Single Gauge 52mm Console Dashboard Pod

**SeaRay** · 12-19-2019, 06:19 PM

Originally Posted by Cray

Ray, when you decide on tach you might look at something like this for a mount.
Universal Single Gauge 52mm Console Dashboard Pod

Thanks, hadn't seen that one.

**SeaRay** · 12-20-2019, 09:42 PM

Got to try the new prop today. 15 pitch SS same as the factory aluminum prop. Boat did fine, may have gained 1 or 2 mph but basically just needed to switch to SS due to some areas I fish.
On a side note, my fickle tach decided to behave today and worked just fine. Maxed out around 5600 RPMs.

Thread: 4stoke question

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