P
In the process of rebuilding a 2002 MC 800 carbed to a Wiseco 883cc big bore. Will be running twin D&D pipes, and cold air intakes. D&D's website said to use a staggered PTO/MAG 490/500 main jets for the 900 application. Now I believe the 900 actual engine size is 862cc. So thats a 21cc difference....I've had some guys telling me to just go 1 or 2 sizes above the 900 chart.
Other than that, I haven't been able to find any information on what to do for the over bore setup in regards to CORRECT jetting or primary clutching. Even the local dealer/ mechanic just shrugs and says, "get bigger jets and check your plugs religiously".
Also heard that AV gas is good for cooler cylinder temps.
Some wisdom is greatly appreciated
Other than that, I haven't been able to find any information on what to do for the over bore setup in regards to CORRECT jetting or primary clutching. Even the local dealer/ mechanic just shrugs and says, "get bigger jets and check your plugs religiously".
Also heard that AV gas is good for cooler cylinder temps.
Some wisdom is greatly appreciated