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Removing air filter holder on 1981 GS1100E

  • Thread starter Thread starter dantodd
  • Start date Start date
D

dantodd

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As I'm installing my SH-775 R/R I'm having singe some difficulties finding a mounting point. I could mount it on the back of the existing mounting plate but the first airbox or air filter box us in the way.

I'm considering removing that box and running a single open air filter into the second air box or plenum. My thoughts are that this would allow for more even airflow to all the carbs so syncing will be better and less sensitive to airflow differences between the inside and outside carbs.

Has anyone used this setup? How did it work? I'm getting singe mold popping on decal already so I may be tethering anyway but I'd rather do that once rather than twice.
 
My 82 1100E had a similar set up when I bought it, a single large K&N filter that mounted to the airbox on the carbs with the back half of the airbox removed completely. It ran OK like that but wasn't perfectly jetted. I have since went to pods and sorted the jetting correctly. FWIW, I mounted an SH-775 in exactly the same spot you are looking at and it works fine there. The details of the single filter set up were:

K&N filter #B035B4
Pilot jets - 47.5
Main jets - 130
Mixture screws 2 turns out

Note this is on a Canadian spec bike. We still had adjustable needles from the factory at that point so I am still using the OEM needles. They have a much finer taper than Dynojet needles and give smoother response coming onto the needles. My elevation is close to 3400ft as well.


Mark
 
Last edited:
Thanks Mark, your post about mounting the R/R there is what got me going down this hole. Thanks for the herring info. I need a new exhaust ago I'm thinking about getting the whole intake/exhaust sorted before looking at setting the carbs up. Hopefully I'll be able yo to give this again when I'm ready.
 
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