GolfVenture Posted October 31, 2011 Share #1 Posted October 31, 2011 I've gotten to the point of reading the carbtune for the 1st time on my 91 VR. My instructions says to bring carb 1 & 2 to an even level then the same 3 & 4, then sync up 1&2 with 3&4. Well I got 1&2 evened out at around 27/33 and 3&4 to around 40. That could be the reason why my mileage was so bad. The carbs probably nevers been synced sinced left the dealers lot it only has 6700 miles on it. So I now have 1&2 pretty even with 3&4. Is the reading supposed to be pretty steady or is it supposed to bounce with about 6 units of variance? So right now all 4 are bouncing between 28 low and 34 high. Link to comment Share on other sites More sharing options...
Steveroge Posted October 31, 2011 Share #2 Posted October 31, 2011 Do you have the re-stricters in the tubes and at the carb end. this should help to stop the bounce. Link to comment Share on other sites More sharing options...
Yamamike Posted October 31, 2011 Share #3 Posted October 31, 2011 Unless you have a bad or tight intake valve...have you adjusted the valves? Ride safe, Mike Link to comment Share on other sites More sharing options...
Marcarl Posted October 31, 2011 Share #4 Posted October 31, 2011 You should sync 1 to 2, then 3 to 4 after that 4 to 2. As you sit on the bike: 1 is the rear cylinder on the left 2 is in front on the left 3 is the right rear 4 is in the front on the right Link to comment Share on other sites More sharing options...
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