Thread: A couple of Motor questions

First I would hook line to another tank that I know works, then try. Still dont work, W-Mart has a new line with tank fitting, disconnect and bulb for 26.00 or so dollars. It has an O-Ring in the disconnect that seals off any chance of air. Be sure to use Teflon thread sealer on the fitting to the gas tank. If this doesnt work you probaly have a faulty fuel pump. I had a similar problem with my 75 HP Force. It cranked great and ran good until I had a heavy load in boat and then after running along about 35 mph she would start cutting out and finally stop. Checked bulb and it was a little soft and would pump up and run just fast enough to get on plane the rest of day. After several tries I changed tank-line-bulb-fitting with the new disconnect with the O-Ring and solved my problems. I think the O-Ring in the disconnect was the key to solving problem. Good luck. BB

My bulb was loosing prime causing me to have to squeeze the bulb to pump it back up before the motor shut off and I found that cleaning out the water seperator was my only problem. I should mention this is on an older Johnson carburated engine.

Originally Posted by TnT

I finally put the "Project Boat" in the water on Friday. The good news is that it didn't sink ..The bad news is that the prop had spun the hub in it. The motor did run excellent tho....So I left it in the water and gave my trailer a makeover during the weekend. I went back Monday to get the boat and put a different prop on it and she ran out great. But after about 10 minutes or so the bubble "collapsed" and stopped feeding gas to the motor. I had to disconnect the hose from the bubble to release the pressure, reconnect the hose to the bubble and it started pumoing again like it was suppose to. The vent hose does not have any obstructions in it. I know that the fill tube is OK(I had to fix that last week)...So what else could be causing the bubble to collapse?

My 2nd question is the pitch on a prop....I took a 23 pitch off and put a 17 pitch on it. I know one pitch will cause the boat to have less hole shot and one will give it more speed at top end...Which does what.??..I am not too concerned about top end speed, I just want to have less hole shot.

Tim

The vent in the fuel cap is stopped up and this is creating a vacum, lossen the fuel cap and see if this corrects the problem, if so replace the fuel cap Mr Jimmy

TNT,

Any prize for the winner? LOL Anyway, post what the issue was. Be interesting to see what it was.

I checked several things...I'll find out tomorrow if any of them worked!!

The bulb is meant to flow gas in one direction. Reverse the blub and try it again.

Charlie

Which one worked? BB

Originally Posted by Bottombumper

Which one worked? BB

I'm not sure just exactly what I did, but something I touched seem to work...Boat ran nice and smooth and topped out at 41 mph...But the idle was a little rough...Figured it was the carbs or something minor from sitting up for so long...Put it in the shop and found out that I was only running on 4 cylinders...Needs a new stator, so it has been ordered and waiting on it to come in...I just told my boat man to make it right while he had it!!!...Still can't believe how good it was running on just 4 cylinders tho