I BOUGHT AN SPE 26 CC 2 WEEKS AGO FROM MAXFORDUSA. I RAN THE ENGINE WITH LAWN BOY OIL. I PUT 8 OZ. TO 1 3/4 GAL. GAS + 2 OZ. OF KLOITS OIL. THE ENGINE PREFORMED WELL BUT WANTED TO RUN WARMER THAN I LIKED SO I ADDED 2 MORE OZ'S. OF KLOITZ OIL & SHE RAN COOLER . OVER A PERIOD OF 3 DAYS I RAN THE ENGINE A TOTAL OF 5 HRS. & PUT ON PLANE. I TRIED RUNNING @ 32 TO 1 RATIO & THE ENGINE RAN VERY WARM. I ADDED MORE OIL & WITH THE ENGINE RUNNING COOLER , I TOOK OFF. I DID NOT GAIN ENOUGH ALTITUDE TO BE SAFE BEFORE THE ENGINE SHUT DOWN, TWICE WHILE RUNNING ON TEST STAND IT QUIT & ONCE IT WAS DUE TO MY SMALL BATTERY GOING DEAD BUT I WENT TO A 5 CELL NI-MI 1000 MAH. BATTERY & THE NEXT TIME IT STOPPED , THE BATT. WAS GHGD.UP GOOD SO I NEVER DID FIND OUT WHY IT QUIT THEN. THE LAST FEW HRS. , IT NEVER SHUT DOWN AGAIN TILL RIGHT AFTER TAKE OFF. I CRASHED & TOTALED OUT MY PLANE & BENT THE SHAFT , BROKE THE SPARK PLUG & PLUG BOOT. THERE'S A DENT IN THE ELECTRONIC IGN. BOX & I HAVE NO IDEA IF THE ENGINE WILL RUN, OR SHOULD. SHAFT IS PROBABLY OUT BY .030 ON THE END. MAXFORD USA /GREENMODELUSA , TOLD ME THE COULD NOT HELP ME IN ANYWAY. I ASKED ABOUT SERVICE & WHETHER MY 2 YR. WARRANTY WAS TO BE HONORED ATLEAST TOWARD SERVICING OR INSPECTING THE MOTOR. HE HAS NOT ANSWERED ME BACK YET ON THAT PART. GUYS I'M RETIRED & HAVE VERY LITTLE MONEY & SAVED A WHILE JUST TO PUT THIS ENGINE ON MY DISCOVER CARD. IS THERE ANY HELP OUT THERE? THANKS & KEEP THEM FLYING & IF YOU HAVE ANY GOOD ADVISE ,PLEASE NOTIFY. ENGINE WAS VERY NOISY WITH THE LITTLE PITTS TYPE MUFFLER , NCRCNUT. [email protected]