Main Motorcycle: Bonneville
Join Date: Apr 2006
Location: Rehoboth Mass. USA
With the stock air filter ,and removing the snorkel I did not notice any
Performance gains. And I did not have to re-jet.
The most accurate way to check your air/fuel mix is through the exhaust
With some special test equipment, I’m not sure what it’s called.
All I do is look at the spark plugs. There are a lot of charts out there
That will tell you what they should look like. If they are on the white
Side your to lean, if there on the black side your to rich. They should
Now if you change the stock air filter to a free flow filter ,and open up the
Air box with one of the kits or remove the restrictor plate from inside
The air box. Then you will have to re-jet , and you will defiantly
Notice a performance difference.
2001 Bonnie (Modified)
1971 BMW R75/5