Hi. I posted to this group a while ago about my R90/6. I have taken\nit out of the garage this year and amd determined to get it running\nwell. It first it was very hard to start and when it did, ran on one\ncylinder. I cleaned both carbs and also replaced the air filter and\nit's running much better. However, there is a lag between when I open\nup the throttle and the engine responds. It's very noticible. I was\nthinking that the carbs might need to be balanced. I've never done it\nbefore. Any advice on the best way to do it?