Wren SuperSport Surge/Stall/Popping on startup
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My Wren SuperSport Pop/surges about 3-5 times during startup. This usually happens between starter cutout and idle. There is a a small amount of blue flame from the exhaust when it happens. Temps are good and engine operates normally after start.
On the day in question temp was about 85F and humid.
At the moment the fuel ramp is set to 5 (Xicoy V10 ECU).
Data Log attached...
Any ideas?
![](https://cimg1.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1366x768/testrun_b55874e57cd2f83eb061696aa179631dc202fcdb.png)
On the day in question temp was about 85F and humid.
At the moment the fuel ramp is set to 5 (Xicoy V10 ECU).
Data Log attached...
Any ideas?
![](https://cimg1.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1366x768/testrun_b55874e57cd2f83eb061696aa179631dc202fcdb.png)