I have a pair of what I believe are model 9100 engines--front carb, rear exhaust port. Is a manual with parts list available for this engine? Indeed, are parts still available? Also, the previous owner retrofitted these with OS carbs. While I assume these will work, do you recommend a carb of your own for peak performance, or will the OS carbs work just as well, or better? (Sorry, non-PC question, perhaps. I assume the previous owner thought so, or wouldn't have done the retrofit.) Also, the crankcase has been ported. I intend to use Perry pumps connected to these pressure taps. Any problems I should be aware of?
If the manual is not available, can I use the 9101 manual for glow plug, fuel and other operating recommendations?
I really appreciate any info you can provide.
Thanks,
Paul Marsh