changing a 1981 cb900c

[bigred7785]

well we just took soda/beer can and made a block off plate for the intake side of the carb, its held on by the filter wen its put on...it restricts the amount of air coming in...that simple...or you can always just get some flat slide carbs and jet em!!

 

[Basement rat]

I thought the biggest problem was that the vaccume pressure had to be equal with the carbs? Then that wouldent make sence compared to the bikes that use the velocity stacks...

How much do you block the intake side by? I presume you are using the bottom of the pop can to cover the intake hole, are you cutting it in half? Can you provide some pictures of the modded cans?

Thanks!

 

[bigred7785]

i dont have pictures as my dad sold the bike we had that done to (the maroon one wth the whitewalls) but i believe hes covered it bout halfway up or so, ill ask him bout the details on what exactly he did, mines just a cb750 so i just put bigger jets in...

 

[bigred7785]

i was gonna mention, this whole solution was invented by the engineer that designed and engineered steve fosett's ( the weather baloon and pilot guy) fuel systems for all his balloons...