So my mileage isn't all that great right now. After checking around town i ordered the carb sync kit from saber cycle, and i've read several posts on here, watched some video's, and even looked at some home made carb sync kits. I plan on cleaning, and then doing a sync to see how that helps the mileage. Looking at my VF500 engine, and in the manual, i can't for the life of me find where i actually CONNECT then 5mm adapters to the engine! I'm pretty sure the pilot screw (9.) is what i adjust to sync the carbs, but i can't find anything that points me to where ports are for using a carb sync kit, hopefully they exist!
The adapters screw in to the heads in threaded holes blanked by phillips head screws just below where the carburetors are attached to the head. On the No. 1 cylinder the port is where the vacuum line from the fuel tank/petcock is attached. No need for an adapter on No. 1 cylinder. Page 3-15 in the Honda Service Manual has a pretty good picture of the ports with blanking screws. I'm pretty sure that you don't use the pilot screw (Number 9 in your diagram) to synchronize the carbs. The carb synchronization screws are more in the linkages between carburetors than on the carb bodies themselves. Decent picture on page 4-14. They are way up between the carbs and, while it's not impossible to adjust them without, the factory - and unnecessarily expensive - carb adjusting tool makes it a whole lot easier. HTH
Thanks! The pages on my manual are a little different but, looking in the fluids & tune up section i found the images pointing to the right locations. Odly it also calls these screws "pilot" screws in one section, but i do see they are in a different location.
You need to do a basic bench synch before mounting the carbs on the bike. It's not necessary or advisable to remove the carb set from the airbox base, Study the service manual carefully cuz the sequence of synchro screw adjustments is very important, and remember to adjust at or near operating temp and flick the throttle a few times after you move a screw so the linkages and butterflys settle into the new position.
