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Discussion Starter #1
Does anyone know if heads from a 2003 900 will fit previous year's motors? I know they switched from oil cooled barrels to air cooled, but I didn't think this affected the oil galleys in the heads. Does anyone have FHE of this cross-fittment?
 
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Discussion Starter #2
Re: 900 2v Heads? (Nick D.)

2003 was the first year for the 1000ds engine... Those heads will not fit any 900 engine. The stud spacing is different. I believe the change from oil/air cooled to just air cooled was in 1999.
 
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Re: 900 2v Heads? (dr_apoc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_apoc »</TD></TR><TR><TD CLASS="quote">2003 was the first year for the 1000ds engine... </TD></TR></TABLE>

Good point, but the seller said they were 2003 900 heads so obviuosly there is a descrepancy somewhere...

Let me revise then, assuming the heads were 2002 vintage 900 engine, would they fit previous year 900 engines?
 
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Re: 900 2v Heads? (dr_apoc)

probably down to 1999... After that I dont know...
 
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Re: 900 2v Heads? (Nick D.)

you're already running a 944... what devilish plans you got now?
 
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Re: 900 2v Heads? (s4strati)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by s4strati »</TD></TR><TR><TD CLASS="quote">you're already running a 944... what devilish plans you got now?</TD></TR></TABLE>

You live too close to me for me to be able to see you with two bike projects and me with none.

I am on the hunt for a fuelie 900 Monster that needs rescuing...and heads!
Think...Caveman bike!!
 
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Discussion Starter #7
Re: 900 2v Heads? (Nick D.)

I'm pretty sure that all the 900 heads are interchangable.
 
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Discussion Starter #8
I believe straight air cooling happened in 2001 or 2002.
 
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Discussion Starter #9
Re: (corsastrada)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by corsastrada »</TD></TR><TR><TD CLASS="quote">I believe straight air cooling happened in 2001 or 2002.</TD></TR></TABLE>

Barrels, but not heads, right?
 
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Discussion Starter #10
Re: (corsastrada)

I have a 99 engine that is air-cooled... I believe it happened MY98

 
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Re: (dr_apoc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_apoc »</TD></TR><TR><TD CLASS="quote">I have a 99 engine that is air-cooled... I believe it happened </TD></TR></TABLE>

No, the move to air-only came in 02 I think. '99 was still air/oil.
 
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Re: (dr_apoc)

The air/oil had external oil lines correct?
 
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Re: (dr_apoc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_apoc »</TD></TR><TR><TD CLASS="quote">The air/oil had external oil lines correct? </TD></TR></TABLE>

Yes, but in 1999 (or was it 1998?) they moved the return lines inside the barrels.
 
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Re: (dr_apoc)

Well either the guy I bought the engine from told me the wrong year or they moved the lines in 98. I dont really know.
 
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