clutch slipped a lil this afternoon when getting on hwy.clutch lever was hard to pull and clutch lever would not return easy when pulled. took it back home to check it out, fluid reeks! not alot of miles on it(7800)since it was changed but prob due now anyway.no problems in the past.clutch was adjusted maybe 4500 ago, no problems at all. maybe worrying bout nuttin but nees reassuring.has royal purple max cycle 10w30 in it if i remember correctly(not starting a fluid thread) need opinions please.fluid reeks but isnt godawful looking.opinons??

 

Try 75w90 or 80w90 GEAR OIL which is about the same viscosity as 10w40 motor oil.

 

Take a gander at HarleyTechTalk.com on this subject.

Use ATF. Drain the fluid, insert ATF, ride 2 hours, drain the fluid, insert ATF.
Now you are normal.

Really good artical on the primary.
...gene

 

Use atf in the transmission if you are going to use it anywhere

 

l use 75/140 in trans

 

I was told you could use any 10/40 oil in primary save your money

 

What bike is this???

Assuming it's a regular touring model, the RP should not be causing problems. Just about any good 10w30 (or 40) that has little to no moly should be OK. You might have something else going on with the clutch.

As some have found, ATF works well in the primary. I would, however, not use 80w90 gear oil especially with cooler weather approaching.

 

07 flhtc,sorry bout that. have read many,many articles on this since i posted(makes your head swim) seems the best is either atf or any 10w40 oil.if i remember correctly my dealer told me if i put syn in it i had to stay that way always.anybody heard this?

 

Why not just use primary fluid? Pretty cheap at the dealer?

 

well...example. last night dealer was closed, needed some fluid and couldnt get it.would like to use what i can from parts store(more avail)