1963 fastwin 18

[hawk232]

so i am finally working towards my goal of restoring an old boat and outboard (i only have the outboard and a jon boat, for fishing, right now though)... i got a 1963 fastwin 18 with fully functioning electric start. I ordered a manual a day or two ago but it wont be here until next week. my main question is what are the two knobs in the front of the motor by the choke? they go to the carb, i assume to adjust a/f ratio? how do i set them?

the motor ran fine, all day, when i got it, as well as a couple days after. i took it out to go fishing yesterday and it cranked right up, but it started backfiring (or so it sounded) through the exhaust. long story short, i have pulled the flywheel and checked the key, its not the problem, so i am wondering if i may have bumped the knobs and not realized it.... other ideas are also appreciated!!

 

[Joe Reeves]

Re: 1963 fastwin 18

(Carburetor Adjustments - Two Adjustable N/Vs)
(J. Reeves)

Initial settings are: Bottom high speed = seat gently, then open 1 turn out. Top slow speed = seat gently, then open 1-1/2 turns.

Setting the high and low needle valves properly:

NOTE: For engines that DO NOT have a shift selection, obviously there is no NEUTRAL position. Simply lower the rpms to the lowest setting to obtain the low speed needle valve adjustment.

(High Speed) Start engine (it will run pretty rough), shift into forward gear, take up to full throttle. In segments of 1/8 turn, waiting for the engine to respond between turns, start turning in the bottom high speed needle valve. You'll reach a point whereas the engine will either start to die out or spit back (sounds like a mild backfire). At that point, back out the needle valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest setting.

(Low Speed) Slow the engine down to where it just stays running. Shift into neutral. Again in segments of 1/8 turns, start to turn the top needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running. Eventually you'll hit the point where the engine wants to die out or it will spit back. Again, at that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting.

When you have finished the above adjustments, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.

 

[hawk232]

Re: 1963 fastwin 18

i read that before i posted and suspected that this is what they were. i hate to assume though! thanks!!

anyone have suggestions about the backfiring??

more info: i took the boat out and it ran fine on thursday, took it out sunday and more or less from the moment i cranked it up it was backfiring. when it back fires it appears to load up and die. once i get it started again, sometimes it will seem to run perfect for 30 seconds or so, then starts backfiring and dies again. it seemed to get worse as i fooled with it longer. i will set the carb settings tomorrow and cross my fingers that this is what the problem was...

 

[oldcatamount]

Re: 1963 fastwin 18

Follow the advice from Joe, if that doesn't do it, you probably need to clean and re-build the carb.

 

[hawk232]

Re: 1963 fastwin 18

good!! i hope thats all it is, i really dont want to have to dig to find a problem, i would love for it to be the carb!!

thanks!

 

[Chinewalker]

Re: 1963 fastwin 18

The intermittent nature tells me you might have a floater in the carb. If the motor is new to you and has been sitting awhile, it's possible the carb was a little gunked up. Using it loosened up some gunk that is now floating around, causing your occasional problem...

 

[hawk232]

Re: 1963 fastwin 18

that was my thinking, either that or some water in the carb (though there is none in the clear sight bowl). i will adjust it this afternoon and see what the does, i forsee tearing the carb apart though...


again, while I am waiting on my book, could someone tell me the tq spec for the flywheel nut? most commonly I am seeing 40-45 lb-ft, but have seen one person say 60-65 and one said 100-105.... quite a difference there!!!

 

[hawk232]

Re: 1963 fastwin 18

ok, i am trying to adjust the carb but the low speed knob has a linkage that turns the screw inside, i only have roughly 1/2 turn of play in it. is this different from the system outlined in the top secret section? as is i certainly can not turn it 1 1/2 turns!!

 

[14ftgrumman]

Re: 1963 fastwin 18

Unscrew the arm that the link connects to, then do the adjustment proceedure, and when you are done, re-connect the arm and link. You use a mid-sized screw driver to do the adjustment. You will see wher the screw driver goes once the arm and link is removed.

When done, set the indicator on the knob to center, reconnect the arm and link and you are good to go.

 

[hawk232]

Re: 1963 fastwin 18

thanks!! well i adjusted everything out and it ran much better in the tank. took it to the river and at one full turn out on high speed i couldnt even get on plane. i leaned it out until it started running bad and top end is 2mph faster than before. i did notice that if i let out of the throttle fast it would cough a few times. the didnt happen if i slowly released the throttle. what would cause it to cough on decel?

low speed i could never get right. at 1 1/2 turns out it wouild bog. i leaned it out and got it to idle good but it would occasionally cough. if i kept leaning it out it would cough really bad. i finally settled on the best idle with minimal coughing, knowing that this still wasnt right.

another problem i am having is once it warms up i have a miss at idle and slightly above. it goes way if i give it any significant amount of throttle. any ideas what this may be???


fyi: i checked the gap on the points, one was .020 and one was about .022. i set it back to .020. I also did a compression check and got 100psi on the top cyl and 105 on the bottom cyl. how does this sound?

i know this is alot to cover in one topic, but i greatly appreciate any help i can get!!

 

[Joe Reeves]

Re: 1963 fastwin 18

(Point Setting Of Magneto Models)
(J. Reeves)

Set the points as follows. Have the flywheel key aligned with the fiber rubber portion of the ignition points. Adjust the gap so that a .020 gauge will pass thru but a .022 will not. Should there be any question of the points being dirty (touching the contact with your finger would cause them to be dirty), clean them with a small brush and acetone or lacquer thinner.

NOTE: Should the operating cam have a small portion on it with the word "SET" imprinted, align this portion with the fiber rubbing portion instead of the flywheel key.

Remove, clean, and rebuild the carburetor using a new complete carburetor kit, then adjust it as stated above.

 

[hawk232]

Re: 1963 fastwin 18

thanks a ton Joe, I already set the points!! i actually ordered a carb kit while i was waiting on a reply to this thread!! guess im at least on the right track!

 

[Joe Reeves]

Re: 1963 fastwin 18

I knew you adjusted the points BUT did you adjust them with the flywheel key aligned with the fiber portion of the points?

 

[jbjennings]

Re: 1963 fastwin 18

The flywheel nut torque is 40-45 foot-pounds, and it is imperative that it be the proper torque or you could have MAJOR problems. Some books give the torque in inch/pounds. DOn't confuse the two.
Good luck,
JBJ

 

[hawk232]

Re: 1963 fastwin 18

Joe, yes, i found somewhere on the net that it said to set them with the key pointed at the "base" of the point, so that is where i set them!!!

I torqued the flywheel to 43lb-ft (figured it was a good average lol)

any idea on what would cause the sporadic miss at low rpms? i am going to wait to further asses the idle "coughing" until the carb is rebuilt...

 

[hawk232]

Re: 1963 fastwin 18

ok, carb is completely disassembled and soaking in carb dip right now... will reassemble this afternoon.

i am pretty sure that i found the cause of my miss. one of my plug wires looks like it rubbed the flywheel while running, and is worn pretty good in that area. I have not confirmed by running and watching it jump arc, but it doesnt take a rocket scientist to figure that out lol.

in my parts catalog they show every piece as being seperate. is there anywhere that sells a complete plug wire kit??

 

[lindy46]

Re: 1963 fastwin 18

in my parts catalog they show every piece as being seperate. is there anywhere that sells a complete plug wire kit??

Most Johnnyrude dealers sell the plug wire in bulk - I just bought some for 60 cents a foot. Hypalon 7mm copper core. Use your old boots on the new wires. Pretty simple to install.

 

[hawk232]

Re: 1963 fastwin 18

ok, so i reassembled the carburetor after following the manual to a t. also replaced the plug wires. no change in how it runs. it still has the slight sneeze to it at idle and it misses once it warms up. the points look pretty worn so i am going to replace those next. I am also have a problem with water only coming out of the exhaust sporadically??? any ideas?? the previous owner said that the impeller was new. i will pull the lower unit and check it out anyways.

 

[jbjennings]

Re: 1963 fastwin 18

ok, so i reassembled the carburetor after following the manual to a t. also replaced the plug wires. no change in how it runs. it still has the slight sneeze to it at idle and it misses once it warms up. the points look pretty worn so i am going to replace those next. I am also have a problem with water only coming out of the exhaust sporadically??? any ideas?? the previous owner said that the impeller was new. i will pull the lower unit and check it out anyways.

The impeller could be new because it went out on the previous owner and they replaced it after the motor overheated and ruined the exhaust gaskets under the exhaust cover. Speculation, only, of course.
You may also have the water level too low in the bucket, which is common. It should be about 3" below the exhaust relief. There can be other causes, as well.

Question: What happens when you turn the low speed carb. needle all the way closed? Does the engine die? If not, your carb isn't clean.

You may also have a vacuum leak which is leaning out the fuel mixture.
Just guesses, of course. You can search for exhaust leaks by squirting fuel mix around the carb gaskets and manifold gaskets. If you make a squirt and it smooths out, you've found your leak. Vacuum leaks aren't usually a problem on these unless you've taken the intake manifold off.
Good luck,
JBJ

 

[hawk232]

Re: 1963 fastwin 18

does anybody know there napa part# for the points and condenser kit?