Hello fellow Evo owners.I have a 1992 FXRS which I found unloved a couple of years ago.Same owner since new with a whopping 1800 ,that is correct,miles.This bike,after thorough servicing is like a new motorcycle,except,after putting a few thousand miles on it it has started weeping not dripping oil @ rear cylinder base gasket.I know this is not unusual as there are many accounts of this occuring everywhere you look.
Just the thought of tearing this apart to fix it pains me.But ,if I do,I wonder if the gasket surface will be out of true even though it has only 5000 miles on it?I know I can't be certain untill I have it apart ,but??
At this point I have zero desire to modify this motor as it runs very well and is a fantastic one -up all arounder.
So,at what point should I not tolerate the leak?
By the way,I believe if people had ridden an FXR or any of it's variants 20 years ago,many more would have wanted one.This bike is just so solid performing ,handling stopping,it does everything well,just not a rice rocket.

 

The odds of there being anything wrong than the gasket are in your favor. It's a relatively simple task if you mechanically inclined. Of course, you want to check that all surfaces are flat while it's apart. Use quality gaskets and be sure to follow service recommendations and proper torquing procedures and you'll be fine. There are some "fix kits" which claim a 100% resolve to the problem ( Pig Tails and the like ) but I've done several and never had a problem. I will suggest that you allow the motor to warm up before each ride ... This seems to help in aiding to the longevity of the base gaskets.

 

Leave it alone. Got mine at 11k and was weeping, rode it until 60k and it was leaving a dime sized puddle underneath.

If it ain't broke...

 

2nd that.

 

If you are just bored and want to do it I say go for it but IMO you should look at doing other upgrades while you are there. Pistons, headwork, cam, etcetera.

If you aren't planning to do anything else while you are in there I suggest you just leave it alone as it won't hurt anything.

 

Agree, both my 84 FXR and my 89FLHT had the same issue. Kept an eye on it and in each case niether got any worse over the 10's of thousands of miles that they were ridden. To me it was only worth addressing when it came time to replace the head and rocker box gaskets. Then everything got done in one shot.

 

Buddy has a 90 E-glide that leaks at the base gasket…not a lot, just enough to annoy you becuase they, unlike pans and shovels, should not leak. Eventaually you will get around to fixing it. Evo motors are very easy to work on. When you do get around to it I strongly recommend Cometic. Not the cheapest but definitely very high quality.

 

It was a common problem with early Evos, my 1990 Glide leaked as well. However to cure it simply strip and rebuild using current good quality gaskets. Don't make a big thing out of this, with the factory service manual it is a simple job to do and won't take you long.

 

I wouldn't tolerate a oil leak, I would have to fix it.......

 

^This^

Unless you are made of money or are **** about a slight bit of oil (it won't leave a spot usually), don't worry about it.