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Also, regarding the fuel mixture - is there a consensus on if it’s best to use a TruFuel type product that is engineered without the high ethanol % content, etc. of common pump gasoline? I’ve found individual cans of high octane (92-93) at the hardware store that are free of ethanol and I was wondering if this might be a good route to go for mixing with the SAE 30 oil. Most of the 2-cycle weed-wacker and chainsaw premixed fuels around my area tend to be 50:1 ratio. I don’t plan to run this engine much, just occasional use to show it off kind of thing so I don’t mind spending a bit more to get a good quality fuel that will prolong life and integrity of the engine. One of these days I would like to find a Drillgen or a small outboard boat motor powered by one of these engines. The Tiny Tiger generators are pretty neat too but tend to be pretty pricey. I saw a post somewhere on here where someone has an entire shed filled with a collection of tools, very impressive and a beautiful collection!

Hello David, Thank you, I think I need to read that NIAE report a couple more times. Am I to understand that these earlier models may not be as well constructed and potentially prone to premature wear or failure? I appreciate your connecting me with Webhead and Wallfish as well. I will be in touch with Webhead shortly to pursue the diaphragms. I was also able to find a couple Champion UY6 plugs and have them on order. Thanks, Clint

Hello David, Thank you very much for the welcome and I really appreciate you sharing your expert advice. The engine I will be receiving does indeed look like yours. The serial number is 030521 so pretty close to yours if I’m making it out correctly. I’ll post some pics once it arrives. What is the best way to connect with Webhead or Wallfish to discuss the diaphragms? Thank you for the spark plug recommendation, I’ll start tracking that down as well. I’m looking forward to getting into this thing. I can tell I’m already hooked- there are so many cool applications of this engine! Thanks, Clint

Hello All, I’m brand new to the forum and also new to the older Ohlsson & Rice engines. I’ve been working on various small engines including Briggs model size from the 1930s-50s so I’m in new territory here. I understand through some researching that there are some experts here in the forum and I’m hoping to get some advice. I recently acquired my first Ohlsson & Rice engine, actually still waiting for delivery. It’s a basic Type 115 engine and doesn’t have a gas tank or anything else. It’s also got a carburetor that looks a bit different from most that I’ve seen during my initial research. The top of the carb is completely flat with no spring loaded button on top or other holes on top. I’m anticipating it will need to be completely disassembled and cleaned and the diaphragm replaced. First question is does anyone here still make a replacement diaphragm or know of a suitable mateial I could purchase to make my own? Second question is, what is the recommended spark plug for these engines? Mine is coming without one and of course no other documentation to reference. I look forward to your expert opinions and to learning from all of you that are much more knowledgeable on these cool old engines. I’ll try to post a couple photos after it arrives.