Sporster primary fluid

[speed limit]

I put red line mtl in the primary of my wife`s sportster like I use in my big twins now it sounds like a Ducati should I not use this, is this why harley has different primary oil for sportsters and big twins ?

[Pete_Vit]

Sporty's primary and trans share same fluids, not like Big twins.

[speed limit]

Sporty's primary and trans share same fluids, not like Big twins.

Engine and trans share primary is separate

[Wicked]

Engine and trans share primary is separate

Someone led you astray....    Sportys, from the first to the current, have pri and trans sharing lube. The motor oil is separate.

[Panzer]

I was going to use Red Line in mine because of all the hype.
Went online with Red Line and they recommend that it not be used in a sporty........according to their site that is.
Just saying.

[rbabos]

I put red line mtl in the primary of my wife`s sportster like I use in my big twins now it sounds like a Ducati should I not use this, is this why harley has different primary oil for sportsters and big twins ?

Well, shared trans and primary and using MTL will explain the noise. Oil choice should be chosen based on the gear box instead.
Ron

[speed limit]

Guys I`m new to sportsters but this much I know the engine and trans share the same fluid
and the primary has separate

[Wicked]

Guys I`m new to sportsters but this much I know the engine and trans share the same fluid
and the primary has separate

Wish I was closer to ya for a little wager....  !
Please accept what you've been told here....your bike will like you more for it... 

[Slammers]

Not sure which year your's is but according to the 2010 XL Service Manual the primary and transmission oil are common.

[Hal64hd]

They ONLY Model Harley where the Engine and Transmission oil is shared, is the V-Rod, Period.

[FSG]

I'd take that bet too      a capture from

http://harleytechtalk.com/htt/index.php/topic,66184.msg709398.html#msg709398

While there are only two oil holes, you SAS cant put MTL in the Trannie.

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[Tynker]

 

Guys I`m new to sportsters but this much I know the engine and trans share the same fluid
and the primary has separate

[Panzer]

They ONLY Model Harley where the Engine and Transmission oil is shared, is the V-Rod, Period.

                   You can take that statement to the bank. 

[speed limit]

Ok I stand corrected thanks guys I`ll replace the mtl with formula 1 just don`t tell my wife

[Hossamania]

We promise not to say a word. Even though none of us have ever made a mistake......     

[Pete_Vit]

Guys I`m new to sportsters but this much I know the engine and trans share the same fluid
and the primary has separate

I guess I've got on off those one off , one of a kind Sporties, 

[speed limit]

Ive been riding Harley's since 72 with 0 XL time must of got some bad info years ago and always believed it so, replaced the mtl with formula 1 even though the parts person at the dealership suggested the green redline for sportsters and its quiet again and the wife is too

[Pete_Vit]

Ive been riding Harley's since 72 with 0 XL time must of got some bad info years ago and always believed it so, replaced the mtl with formula 1 even though the parts person at the dealership suggested the green redline for sportsters and its quiet again and the wife is too

have to say I never knew this, the Sporty was my first Harley, when my Stator (rotor) magnets came loose coming home from Rolling Thunder the Indy I took it to told me he had to clean, purge the entire primary / tranny, magnets went everywhere, that's when I found out they shared a common fluid 

[FSG]

even though the parts person at the dealership suggested the green redline for sportsters

that's interesting

[Panzer]

even though the parts person at the dealership suggested the green redline for sportsters

that's interesting

Hmmmmm, very! 

[FSG]

it's good stuff, I use it in the fattys trannie

[attach=0]

[speed limit]

update: noise returned pulled the primary cover and tightened front sprocket problem solved

[Pete_Vit]

 

[76shuvlinoff]

 Old Thread but .....

Tinkering with an 04 Sportie for a friend with no manual. First Sportster I ever put a wrench to and I was about to put MTL in primary like I have run in all my BTs but came here first.

  As far as the "Shared" Engine and Transmission oil statement above goes, in my adventure I found a guy on YouTube saying the same thing.  I also saw one where the "wrench" said to tighten the Derby cover bolts  at 90 to 120 FT LBS

Be careful out there.

Mark

[hdbikedoc]

I like 60 weight amsoil in sporty pri/trany  no clutch slip and a tad quitter than formula