Product
engine temp
Question:
    Hi there, Could you tell me please what is a safe or appropriate running temp for the PRO 39H engine? I have one on my Raptor and while breaking it in I think I may have fried it. If I have to get another one so be it, but I don't want to destroy that one aswell. I will only be doing basic hovering and forward flight, nothing fancy. Is there a particular nitro content I should be using for this size engine? Thanks, Tom Halpin.
Answer:
    Dear Tom, Thanks for your email. The fuel for model use with 15-30% nitro is suitable for your engine. We are sorry that we do not have any valid running temp for PRO-39H engine. However, according to your statement, the engine perhaps runs too lean. The adjustment of needles is the key point. Please contact our authorized distributor for technical support. May we know where you are from that we are able to inform you of the service center? Best regards, Customer Service Thunder Tiger Corp. [ Simon ]
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