Tower Hobbies .15 Nitro Engine

Up for auction is a .15 nitro engine from Tower Hobbies. It is used but in good working condition. It has less than a couple of quarts of fuel through it. I have not run it for awhile due to the carburettor having to be sent back to the manufacturer for service. It was broken in correctly. The only issue is the carb right now. Both carbs are brand new. However, the idle stop screws on both do not hold the carbs open like they are supposed to. I am tired of sending them back to Hobby Services for repair or replacement. They do not seem to understand what I am trying to tell them. Otherwise, they are functional. If this is not an issue for you, then this is a solid running motor. Great for a spare or another vehicle maybe? Maybe you have a carb but no motor? As you know, any carb should work with this motor. I will provide the information to Hobby Services if you desire to try and get them to understand what needs to be fixed. Shipping is free. No international bidders please. Canada is my only exception. I cannot accept any returns for this item. Buyer should read and fully understand what I am selling. If there are any questions that need clarifying, please do so prior to bidding, and I will get back to you as soon as I can. I have a good rapport with Ebay and it's buyers. I take my feedback seriously. Please do not leave negatives because of a misunderstanding. Contact me first, and I will do my best to solve the issue. Thank you for looking.