need help with my 1966 evinrude ski-twin 33hp

[1966Springbok]

hey all i am new to this site i am looking for some help i have just picked up a 1966 springbok with a 66 evinrude ski twin 33hp it didnt have spark when i got it since then i have gotten the motor to fire but wont start not sure what it is.... if you can help me out that would be great thanks

 

[kfa4303]

Re: need help with my 1966 evinrude ski-twin 33hp

Hi 1966. Welcome to iboats. I used to have a '66 33 hp Johnson myself. Great old "Big Twin" motor. Lots of low end torque and power for their size and weight. There are really on ly 3 things you need to get these old gems to run; Spark (should jump a 1/4" gap with ease using Champion J6C plugs and 7mm copper core spark plug wires), Compression (over 80-90psi per cylinder with both cylinders within 10% of each other), Fuel (primer bulb should get firm prior to start up, then soften once motor is running)(you can use 50:1 mix, but I use 24:1 in all my '60s area Johnsons and have never had an issue with smoke or fouling a plug, and a the extra oil is good for these old 2 strokes.) Be sure you check each of these factors before moving on to the next. Here are some links that can walk you through a tune up from top to bottom. You can get an routine parts like carb kits, coils/points/condensers kits, lower unit seal kits, etc...right here at iboats for about $25 each. Good luck. Holler if you get stuck.

http://www.marineengine.com/parts/v...ntage-evinrude-johnson/278780/27878000001.htm

http://www.duckworksmagazine.com/04/s/columns/max/24/index.cfm

http://www.outboard-boat-motor-repa...on 3 HP 1952-1967 Ignition System Tune-up.htm

http://www.outboard-boat-motor-repa...hnson 5.5 HP 1954-1964 Carburetor Tune-UP.htm

 

[1966Springbok]

Re: need help with my 1966 evinrude ski-twin 33hp

hey thanks for the help and information in fact after i posted this i went out and started working on the motor again and well i got it running good now just time to get it in the water and blow the 5 yrs of crap in the motor out lol only took me 10hrs from the time i started working on the boat to it running as this is my first boat i have owned and ever worked on i mostly work on restoring old snowmobiles so this was a change thanks again for all the help cheers

 

[kfa4303]

Re: need help with my 1966 evinrude ski-twin 33hp

Sweet. Glad you got it running. Keep us posted on the progress. We love pics

 

[1966Springbok]

Re: need help with my 1966 evinrude ski-twin 33hp

hey ya i will get pictures up of boat and motor btw im never opening up the bottom end again lol took 45 mins to get it back together lol also it does run but it will only run for 2 secs then shuts down seems like no fuel could or should i rebuild carb as i am the 2nd owner of this boat the ladies husband bought the boat brand new in 65 and up to 5yrs ago he passed away so she took the boats out of the water and covered them up since i have picked the boat up i have put $44 into the boat motor to get it ready for the water which tells me he took care of this boat really well.. just thought i would share the storey about the boat cheers

 

[kfa4303]

Re: need help with my 1966 evinrude ski-twin 33hp

I would go ahead and rebuild the carb. You can get a kit right here for about $25. You should probably go ahead and get a new float too, as the original cork float has almost certainly deteriorated. Here's a how-to link. It's for a slightly different model, but the basic steps are the same.

http://www.iboats.com/mall/partfind...=33&gd_search_14115=1966&session_id=639765032

http://forums.iboats.com/showthread.php?t=167352

http://www.outboard-boat-motor-repa...hnson 5.5 HP 1954-1964 Carburetor Tune-UP.htm

 

[rickymorehouse]

Re: need help with my 1966 evinrude ski-twin 33hp

Hi 1966. Welcome to iboats. I used to have a '66 33 hp Johnson myself. Great old "Big Twin" motor. Lots of low end torque and power for their size and weight. There are really on ly 3 things you need to get these old gems to run; Spark (should jump a 1/4" gap with ease using Champion J6C plugs and 7mm copper core spark plug wires), Compression (over 80-90psi per cylinder with both cylinders within 10% of each other), Fuel (primer bulb should get firm prior to start up, then soften once motor is running)(you can use 50:1 mix, but I use 24:1 in all my '60s area Johnsons and have never had an issue with smoke or fouling a plug, and a the extra oil is good for these old 2 strokes.) Be sure you check each of these factors before moving on to the next. Here are some links that can walk you through a tune up from top to bottom. You can get an routine parts like carb kits, coils/points/condensers kits, lower unit seal kits, etc...right here at iboats for about $25 each. Good luck. Holler if you get stuck.

http://www.marineengine.com/parts/v...ntage-evinrude-johnson/278780/27878000001.htm

http://www.duckworksmagazine.com/04/s/columns/max/24/index.cfm

http://www.outboard-boat-motor-repa...on 3 HP 1952-1967 Ignition System Tune-up.htm

http://www.outboard-boat-motor-repa...hnson 5.5 HP 1954-1964 Carburetor Tune-UP.htm

i have the same motor, which seems to shut off while im operating it at low speed just going slow. if i let it sit for about ten minutes it starts back up. its getting plenty of water it seems, and doesnt seem to be getting hot. i can hold my hand on the heads. any ideas on what could cause this to happen. i just changed the water pump to make sure it was good, and still no diffrence?