I have a 2014 stock MB 35 hd. The Tac almost always has condensation in the display that makes it very difficult to read. Does anybody else have that problem. Is there a fix.

New tac. There are some decent options that aren't tinytac, but that one is likely to hold up the longest. I've got one from Amazon that has a button for a temporary light, and I know another guy that got one that has a temp sensor for head temps that's similar to mine. Don't remember the brand, mounted it on my tiller near my throttle so I don't have to look at the motor to watch rpms.

#CFFITR
#TheGhostBoat
#whoneedsphysicsihaveamudmotor

I like the idea of having it on the tiller. When you hook up a new one does it automatically save the hours?

Nope.

#CFFITR
#TheGhostBoat
#whoneedsphysicsihaveamudmotor

https://www.amazon.com/gp/product/B0069 ... UTF8&psc=1

Here's the best one I've used so far.
Has more features that the TinyTach and has lasted longer.
My uncle has 480+ hours on his with no issues.
Battery can be replaced and everything.

Two tacs at the same time. Sweet.

Wtf. Either write on the frame/engine somewhere the hours from the old tach, or don't worry about it. If you need a new tach, where's the wrong in replacing it?

#CFFITR
#TheGhostBoat
#whoneedsphysicsihaveamudmotor

I'm on my 2nd Tiny Tach and that one was fogging up. Call tiny tach and tell them what the problem is and ask for a couple of new lexan stickers. The cover on the front peels off. Let all the moisture out for a few days and then put the new sticker on and seal it all over the cover and side with silicone. Its now holding and not fogging up for me

I kept my old one and put it with my engine log and wrote down the hours. The old one was giving faulty RPM's. If you keep legit maintenance records the buyer of your engine(if it comes to that) will have to take your word for it.

If we all did business this way the world would be OK, but it don't happen like that.