I have 1 carb. 1 main high speed needle valve. The book says that the nipple located on the carb inlet goes to the exhaust to drain excess fuel away from the air inlet. I've tried, the hose to the exhaust does nothing to bring fuel up to the carb. If the pressure nipple on the case is not for the fuel pump, what does hook up there? What is a "cline"? I am lost. Could someone send a photo of the 90TS all plumbed or tell me where everything goes?