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 Post subject: 900/750 ss/monster inlet manifolds
PostPosted: Mon May 19, 2014 2:43 am 
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Joined: Fri Mar 05, 2010 2:35 pm
Posts: 47
Location: Eudlo, Queensland
model: 750 Sport
year: 1988
Does anybody know if there are any differences between the 900/750 ss/monster inlet manifolds?

I am fitting some Mikuni carbs from a 750SS to a custom Sport build and am wondering whether it matters.

thanks, Sean

PS anybody have a set they want to sell before I go shopping for them?


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Mon May 19, 2014 3:31 am 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1596
Location: Newzealand
model: 906 Paso
year: 1990
Im pretty sure I read somewhere they are different , the 750 engine has a shorter stroke and thus a lower cylinder head height , so it makes sense that they would be different :)

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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Mon May 19, 2014 8:38 am 
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Joined: Fri Mar 05, 2010 2:35 pm
Posts: 47
Location: Eudlo, Queensland
model: 750 Sport
year: 1988
I thought so too but does that mean 900ss units are shorter?


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Mon May 19, 2014 7:48 pm 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1596
Location: Newzealand
model: 906 Paso
year: 1990
longer , I have a pair off a 900ss , I can dig em out and have a measure up / pic if you want :)

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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Mon May 19, 2014 9:43 pm 
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Joined: Tue Jan 17, 2006 12:00 am
Posts: 324
Location: Lower Hutt, New Zealand
model: 750 Paso
year: 1986
Customhead,

I have the 900 SS inlet manifolds on my 750P and they fit fine with the Mikunis (also off a 900 SS).

Cheers,

Fraser.

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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Tue May 20, 2014 11:36 am 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5103
Location: southern Germany
model: 750 Paso
year: 1987
if you put a 750 and a 900 Mikuni inlet manifold next to each other you will hardly spot a difference but there are several. The 900 inlet manifolds have a different length and angle to compensate the cylinder height and to position the carb in the exact same height as on the 750.
You can fit 900 manifolds on a 750 and probably vice versa but the carb will stand slightly askew and due to that mismatch the carb and rubber boots may not sit perfectly so there`s a risk of leak air. Better get a set from a same cc bike.

SS and Monster inlet manifolds are not identical. The Monster use a vacuum fuel pump and fuel valve so the inlet manifolds have threads for hose nipples. Some SS inlet manifolds have a screw blocking these holes others don`t have them at all.


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Tue May 20, 2014 9:21 pm 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1596
Location: Newzealand
model: 906 Paso
year: 1990
Nah nah na nah nah :lol: :lol:

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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Wed May 21, 2014 3:04 am 
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Joined: Tue Jan 21, 2014 2:28 am
Posts: 13
Location: South S.F. Bay USA
model: 750 Sport
year: 1990
Sean, go all out and custom make one like this, so your carb. can sit straight. :cool:


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Wed May 21, 2014 10:13 am 
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Joined: Thu Sep 20, 2012 11:48 am
Posts: 258
Location: Perth, West. Australia
model: 906 Paso
year: 1989
Nunodeo wrote:
Sean, go all out and custom make one like this, so your carb. can sit straight. :cool:


The Mikuni carbs come as a pair...joined at the hip...as it were, unlike the single delortos :thumbup:

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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Wed May 21, 2014 11:15 am 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5103
Location: southern Germany
model: 750 Paso
year: 1987
or Mikuni TMs


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Wed May 21, 2014 6:25 pm 
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Joined: Fri Jan 24, 2014 7:07 pm
Posts: 13
Location: UK
model: 750 SS
year: 1991
The inlet manifolds from the SS are all marked and if you fit the wrong ones you can end up restricting the bike. The ones for a 900 should be stamped with a 9, 750 a 7, 600 a 6 and 400 a 4. They are all the same length but the bore will differ.


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Wed May 21, 2014 6:53 pm 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5103
Location: southern Germany
model: 750 Paso
year: 1987
only the later ones were marked and the bore of the 750 & 900 ones is the same.


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Thu May 22, 2014 12:47 am 
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Joined: Tue Jan 21, 2014 2:28 am
Posts: 13
Location: South S.F. Bay USA
model: 750 Sport
year: 1990
I'm fairly new to the 750, so I can't comment on the stamping. All I know is that I took an intake from a early 2000 750, cut it up in 3 pieces, got it re-welded, put it on, and the bike is finally running well. :thumbup:


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Thu May 22, 2014 7:55 am 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5103
Location: southern Germany
model: 750 Paso
year: 1987
from a 2000 ? Then yours would be from a bike with fuel injection. :huh:


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 Post subject: Re: 900/750 ss/monster inlet manifolds
PostPosted: Fri May 23, 2014 5:04 pm 
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Joined: Tue Jan 21, 2014 2:28 am
Posts: 13
Location: South S.F. Bay USA
model: 750 Sport
year: 1990
Sorry guys, the intake I cut up for my 750S was from an early 90's 900, not an early 2000 750. :banghead:


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