Logo
FULL SITE MENU

87 Johnson 140 looper - mods?

K

Krank21

New member
I have an 87 Johnson 140 looper and am wondering if anyone out there has had any experience/luck modifying them to get more out of them. I'm running a 16 Sidewinder which gets 50/55 on a 22 Raker and would like to take it north of 60 if possible. Any thoughts/suggestions?
 
That's the small bore Bridgeport model...do you ski/tube or just ride? If you just ride you can cut heads no more than .025, get rid of the "tea cup" intake and install one off a 98 and up V-4/6, vent the bottom bearing, use 99 and up adjustable carbs, jackplate if don't have one. Which size gearcase does it have?
 
faztbullet said:
That's the small bore Bridgeport model...do you ski/tube or just ride? If you just ride you can cut heads no more than .025, get rid of the "tea cup" intake and install one off a 98 and up V-4/6, vent the bottom bearing, use 99 and up adjustable carbs, jackplate if don't have one. Which size gearcase does it have?
Click to expand...

Thanks for the response. Would this changes make a noticeable difference? I honestly have no idea what the gratcase is unfortunately. We do like to ski:tube but I really like taking it for good runs, it’s a rush 😋😊
 
You can spend a lot of $$$ trying to make that motor faster but best bang for buck is a repower. A 150/175 60 degree Johnrude aint but 5 lbs more than what you have now..and decals are cheap;)
 
Back
Top