I have a newly built engine. It starts but there's no idle. As soon as I release the throttle it dies. There's some spitback, too.


It's a Pinasco MC Evo 3, 60mm SIP disc valve crankshaft, SI 24-24E drilled up to 1.5mm , Lemarxxon LM-M slider, float chamber spacer. The exhaust is a SIP Road 3.0.


The ignition timing hasn't been set and probably off, spitback is a sure sign.


Do you have any recommendations for ignition timing and jetting for this setup?


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Thanks.