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kip51035 · 01-11-2008, 03:31 PM

I just picked up a STIHL 25cc engine. It is converted from a trimmer engine. The STIHL web site says it uses 50 - 1 oil mix. Is anyone using one of these, what prop do I use? These Walbro carbs, are they a pumper carb or is it critical where the tank is?

Kip

Wayne V · 01-11-2008, 04:04 PM

I have a weedwacker 21cc but i converted it to gas/glow to save some weight http://www.rcgroups.com/forums/showthread.php?t=793079 the walbro carbs are pumpers so tank placement is not that critical, as for the 50:1, should work fine as that's what they run on a weedwacker. You should be able to start with a 16x8 and go from there.

01-11-2008, 03:31 PM	#1
kip51035 RCC Supreme Contributor I am: Cliff S Join Date: Feb 2007 Location: Belleville Ont. Radio of choice: Hitec, Futaba - FM # of RCs: 10 Feedback: 25 / 96% Posts: 3,202 Total Props: 18	STIHL 25cc Remove this ad - become a site supporter! I just picked up a STIHL 25cc engine. It is converted from a trimmer engine. The STIHL web site says it uses 50 - 1 oil mix. Is anyone using one of these, what prop do I use? These Walbro carbs, are they a pumper carb or is it critical where the tank is? Kip
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01-11-2008, 04:04 PM	#2
Wayne V RCC Contributor Join Date: May 2006 Location: London, Ontario Feedback: 0 / 0% Posts: 297 Total Props: 0	I have a weedwacker 21cc but i converted it to gas/glow to save some weight http://www.rcgroups.com/forums/showthread.php?t=793079 the walbro carbs are pumpers so tank placement is not that critical, as for the 50:1, should work fine as that's what they run on a weedwacker. You should be able to start with a 16x8 and go from there.
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