homemade mud motor for duck boat startup

[Davedtz1]

@Jepnkd, i have a Briggs 10ph on my surface drive.....id like to put a high flow air filter like the one you have on here....what size is the one you're using? did you have to do anything to the carb?

thanks

[jepnkd]

yes sir I have oone instaled in the video. it was the first time starting and I needed to pump fuel into the motor before it would start now it runs perfect

[hondarideralex]

If you get the gx140 emulsion tube (if you haven't already, it will help starting and low end power a ton. made my go kart a one pull motor after rejetting. 

[jepnkd]

Yep I put the main jet and I'm going to build a custom exhaust

[guywithhat69]

you putting a header pipe, and bigger main jet in there?

[Goingpostal1000]

So probably not enough for a 1648 jon? I gotta find something that will work that also isn't 5 grand!

[guywithhat69]

@Goingpostal1000 I have a 6.5hp on my 1640 flatbottom plywood duck boat.. it moves along alright...

[jepnkd]

I wish I could say yes. I havent worked on it much but I will be soon. Right now I just have a 10 jon for running shollows I couldnt take on major water.

[Goingpostal1000]

Have you finished it? What size boat are you putting it on and how well does it go? Thanks!

[jepnkd]

yep its a hf and its going to be a longtail

[guywithhat69]

@jepnkd right on.. I built a short tail with the same engine....

[guywithhat69]

harbour freight grey hound? you building a long tail or short?