Yammy F150 Spedometer

[BULLWARKS]

Hi all,<br /><br />I have a Yamaha F150 with analog guages. The Spedometer is intermitent. <br /><br />Where does the Spedometer get the input from? I don't see a Pitot or wheel anywhere???<br /><br />Could it be electrical?

 

[rodbolt]

Re: Yammy F150 Spedometer

if you have no hull mounted pitot odds are its using the one on the leading edge of the gearcase, its prone to debris clogging it.<br /> a speedo is a usless instrument on a boat and nothing would make me happier than if W banned them.<br /> however I do make a lot of money fixing them \

 

[Ray Neudecker]

Re: Yammy F150 Spedometer

Yes almost like Social Security to unplug them knowing they will only get replugged until the owner finally gives up and buys a GPS if he feels he has to have that information.

 

[BULLWARKS]

Re: Yammy F150 Spedometer

rodbolt - Guess you're right, I don't race I fish and I dont fish in tourniments so I dont need to race from point A to B and what would the spedometer do for me anyway.<br /><br />Just cant stand having something broken on my boat. <br /><br />Ray - I have a GPS and a Fishfinder that has a wheel on the transducer. Funny thing when the Spedo was working NOT ONE of the three read the same speed!<br /><br />I'm also interested in learning how things work since this is my first boat.

 

[rodbolt]

Re: Yammy F150 Spedometer

I would trust the GPS over the paddle whel or pitot tube methods of speed measurements.<br /> even fishing a tournement I cant see the need for a speedometer. a tachometer yes, hull speed no.<br />only places that really need a speedometer are certain lakes with speedlimits. I have a friend that was banned from lake gaston once for 3 years. last ticket he got they mailed it to him cause he outran the fish cops.<br /> however their camera caught his hull ID <br /> so far in my area there are no speed limits. speed is limited here by wallet size.

 

[BULLWARKS]

Re: Yammy F150 Spedometer

Rodbolt, Thanks for your time and perspective, I appreciate it.

 

[Off The Hook]

Re: Yammy F150 Spedometer

I had the same problem with my F150. As rodbolt said, the pitot tube is on the leading edge of the gearcase. You gotta look for it a little. I'ts small. If you hit a stick or something at speed, it will plug the hole.<br /><br />I cleared mine by using a drill bit by hand. The drill bit worked because I could screw the drill bit into the hole, then pull out the debris. Then I blew compressed air backward through the hose leading to the speedo. Fixed it right up.

 

[Ray Neudecker]

Re: Yammy F150 Spedometer

As you point out, they are fixable. The problem is that many times the fix can take longer than the fix lasts.

 

[BULLWARKS]

Re: Yammy F150 Spedometer

I cannot believe how SMALL the dang hole is!!!<br /><br />No wounder it gets clogged.<br /><br />Maybe I should replace my Spedo Guage with a water temp or oil temp guage. Do they come in the same size as the Spedo?<br /><br />Is it worth doing something like that?