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03-20-2008, 09:17 AM | #1 |
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I am: Paul PB
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Ready for synthetic oil ?
Hi guys ! I have almost only 2 gallons of gaz thru my zenoah 20cc and my DA-50. Do you think I could transfert to synthetic oil at this time or should I wait ? Thanks ! Paul
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03-20-2008, 11:45 AM | #2 | |
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Re: Ready for synthetic oil ?
Quote:
The DA50 on the other hand, it is recommended to go to 100:1 Amsoil Synth after breakin. I would think that after only 2 gal of 40:1 ashless 2 stroke oil mix is a bit soon to be switching over although I do know some guys who have switched that soon. Personally, I used 4 gals of the 40:1 mix before switching over to the Amsoil Synth. Give it a chance to get everything seated and worn in properly first. Switching too soon means that IF things are not seated and broken in as yet, it will take a very long time to happen and your engine will not be running at peak performance until it does settle in. Just my opinion and I'm sure there will be other varied opinions on this subject. NOTE: I have had two different DA50 engines and currently own 2 Zenoah engines, a G26 CDI and the newer G20ie. Also have a DL50 Interesting note on the DL50: A 30:1 ashless 2 stroke air cooled oil mix is recommended for break-in and thereafter a Synth 50:1 only mix is recommended.
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03-20-2008, 12:00 PM | #3 |
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2 gallons through a 50 cc size motor = a fair amount of run time, where as 2 gallons through a 170 cc size motor is just a few flights. Don't equate amount of fuel to run time. I would say two gallons is probably enough, but more importantly does the motor feel like is has smoothen out? If it has, then usually that is about the time I switch over.
Although running break in oil for a little longer is not going to hurt your motor. Sam |
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03-20-2008, 12:55 PM | #4 |
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When in doubt read the manual;
http://www.desertaircraft.com/manuals/50Manual.pdf From Page 5 of the DA 50 manual; For Break-in, we recommend a petroleum-based oil such as Lawn Boy Ashless or Pennzoil Air Cooled 2 stroke oil at 32:1 ratio. Run at least 2 to 4 gallons of petroleum oil/gas mix for break-in. This allows the rings to seat quickly without blow by. Use a prop that allows peak RPM over 6.500 during the break-in process. Set the High needle slightly rich during break-in. After the break-in process, we recommend a high quality synthetic oil. As for brand of oil, there are many good ones on the market. Some oils, and their mix ratios, that Desert Aircraft recommends are: Amsoil 100:1 Pre-Mix (100 to 1), Amsoil Saber Professional (100 to 1), Amsoil 2000 (50 to 1), Red-line (40 to 1), Bel-Ray H1-R (50 to 1). Mobil MX2T (32 to 1) These oils can be found at most motorcycle shops. Ask and Ye shall receive.
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