2 replies [Last post]
Twocams
Twocams's picture
 Offline
VBMWMO #8750
Joined: 03/16/2014
Posts: 631

Can stock R90S carbs be used on a 69R69S? If they work would they work better? Nothing wrong with my Bings....yet.

twocams

__________________

Twocams
69 R69S 03 K1200GT
92 R100RT

schrader7032
schrader7032's picture
 Online
VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6331
R69S carbs have 26mm throats

R69S carbs have 26mm throats and that's the size of the attachment to the head. R90S carbs are Dell Ortos with the number "38" in their model....I suspect that is 38mm. The CV carbs for are either 32 or 40mm, although there are some 26mm carbs listed for the R80GS and the R65. I suspect it would take some work just mating carbs to the R69S...then you'd have to figure out the jetting.

__________________

Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Twocams
Twocams's picture
 Offline
VBMWMO #8750
Joined: 03/16/2014
Posts: 631
Thanks Kurt, Thought it might

Thanks Kurt,
Thought it might be something like that.
No worries I wont buy them.

Richard

__________________

Twocams
69 R69S 03 K1200GT
92 R100RT

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.