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Old 10-08-2007, 06:23 PM   #16
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Originally Posted by RBMike View Post
For air leaks look for wet spots on the motor around the head seal,the carb neck, the fuel fiting, the back plate seal, the front bearing & around the glow plug. This motor can be frustraiting to break in so take your time & don't worry it will all be worth it when you get it dialed in. That motor is a monster. Engine temp is normally measured on the head near the glow plug.
I have to say i can definately second this notion as the RB engine I have in my buggy right now was a serious PITB to get broken in. So just take ur time on breaking it in, it can definately be frustrating to get it to stay running, but that is just because these engines have such high pinch and compression when brand new that it can if u have to do it that way take a loosening of the glow-plug 1/4 turn to release some of the compression when trying to start it. Just have faith man, things will get better slowly. It just takes time with these RB engines. And good luck with it....
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Old 10-08-2007, 08:28 PM   #17
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Like everybody on this thread says take your time. Small changes to these motors. Remember to tune after your engine has warmed up 3 min after start up for me. I also have to agree that you might have to check the fitting of the carb. Make sure that the carb base screw is tight and the carb pressed all the way to the base.
You have a very powerful motor! It just takes some time to get used to!
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Old 10-09-2007, 02:40 AM   #18
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Thanks guys i will try again and just run it and get it nice and warm.

Victor: it was a new engine.

From what people are saying it doesn`t look like 1/2 a gallon through it has been enough.
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Old 10-09-2007, 05:03 AM   #19
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And one more thing...NEVER tune when the engine is still cold.
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Old 10-09-2007, 01:26 PM   #20
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Mine was at a little over a gallon before it started getting fast.
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