ORIGINAL: warrend
Hi All
I've recently put a MVVS 160 into a Katana 140. I encounted my first problem when pointing the noise upward the motor would always lean out regardless of needle settings and attempts to increase back pressure from muffler. I then fitted a perry fuel pump which sorted the problem out. However I now have a problem ( in flight only ) when inverted the motor splutters and looses power. On the ground the motor runs perfectly. Does any one have any suggestions. All manufactures installation recommendations where followed for motor and pump ie. tank location, pump orentation ect.
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Is this the needle bearing equipped glow 1.60? Just curious. Using fuel with too much oil in the needle bearing equipped engines can cause problems with anomalous behavior(s), or so I've heard.
A stiff fuel tank clunk line is something to watch out for, but I agree with everyone else that the engine will improve a great deal with more running.
How about air flow problems through the cowl? If the engine is using a Walbro carb, you may have to install a "static line" into some dead air (fuselage) like that gas boys do. I have seen so many variations of MVVS engines that I'm not sure which one yours is - if you know what I mean? <G>
Please come back to this thread and report your findings. TIA
Ed Cregger