What is the proper compression on a 74 850 Commando Rebuld??

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What is the proper compression on a 74 850 Commando Rebuld??

Postby Mark Cigainero » Wed Mar 19, 2008 7:52 pm

Hello again. After honing the cylinders and new rings on my 74 rebuild it will not start. The valves and guides were done fairly recently and I carefully honed them before re-assembly. Only POPs and poops. I have tried everything I know???Well, I borrowed my neighbors very good compresion tester. The type that screws in the plug hole. after one kick I get about 105 PSI. After 3 or 4 kicks I get about 128 PSI. Remember the new rings are not seated. It has never been started with the new rings. Is this sufficient compression to start the bastard?? I have just about kicked my leg off. I guess I will have to bribe the neighbors kids to help with a push start. I am 53 and not that long winded anymore. I have a new Pazon ignition and I have checked it for timing and spark as well as shot ether into the carbs. All checks A-OK? It trys to start but won/t catch---Any other advise??? I will try a long downhill pushstart next Thanks ---Mark Ciginero
Mark Cigainero
Mark Cigainero
 
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Joined: Thu Mar 01, 2007 8:31 pm
Location: Fort Worth Texas

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