I have just been building a nice SP 35s out of spares. The engine is a 1989 alloy with the delorto carb. I have rebuild the carb using a service kit. When started, the engine runs madly at high revs and then stalls. What are the likely causes? Have I missed something in the carb, or is it to do with the governor mech? I thought I would seek some advice from you guys before investigating further.
Thanks in anticipation.