For the Mew Gull for now , alternat to the FSR-S . Being ringed I figure the Tounge Muffler will cook the ring eventually ( SUMMER ! )

6 flights and still leaning off . Likly my 3.5 mm Uniflow neoprene line tank to vent , any pinch on the 1/8 ( 3.2 ) pipes is likely not .
as soon as theres any heat in the engine bay ( i.e. when the motors running .)

Need to tap the CSC copy muffler for pressure , too. Suction & the OS dont seem to do it , Always ' dried off ' in the Hurricane -
Replaced it with a G-51 . When I went to do the Tank for that I saw Id done the feed on the OS tank with the Thick Wall 1/8 Copper Pipe .
About 1.8 m.m. Bore . Definately DUH . wot. there . Cowl 'n all modded for the L H Exhaust by then , so the ST stayed .

Running a 12 x 5 there , tho I thinned a 11 in 12 x5 the other day , on a whim. Seems I should try that and a 12 x 4 .
Meaning to decompress or check if my ' extra ' gaskets in the OS, im sure it isnt .

I did about 300 of these, they are not ABC  they are  lapped  ABN, made by Thunder Tiger  for Global Hobbies, before the Magnum plant was built in China
They run well when setup properly , I B&B   , retimed, and did head mods and made a true venturie  and CL  NVA.
The 45s  and 46s ( same motor)  were by far the best, the 40s  are powerful and if you run it with no mods you will need  to run a hi rpm  wet 2 cycle
1/2 synthetic  22%  oil 10 nitro works well, The 45  46s  were as strong, or stronger than a ST 60 , and would run a  perfect 4/2  , just a higher RPM 4/2  that people were used to
I still have a few motors  and  parts for these

randy