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NOVABOY8
19-10-11, 08:24 PM
as did a test and first plug hole the 11 and second is 10 and then 8 and 8
the engine dont want to start

Bubba
19-10-11, 08:30 PM
the letter after the number on the engine code relates to the compression ratio
G - 8-8.5:1
L - 8.5-9:1
N - 9-9.5:1
S - 9.5-10:1
X - 10-10.5:1
Y - 11.5+

so if its an E16SE should be 9.5-10:1

if thats any help at all

Stuart
19-10-11, 08:42 PM
hmmm 3 bar difference from 'good' to bad...

did you test with the throttle wide open and a good battery? Then test again with a drop of oil down the bores

Royston
19-10-11, 08:42 PM
as did a test and first plug hole the 11 and second is 10 and then 8 and 8
the engine dont want to start


PSI or bar?

8-10 psi is BAD would expect @ 120 +

8 bar is 116 psi, 10 bar is 145 psi, 11 bar is 159 psi thereabouts

If in bar there should be sufficient compression to run!

mowgli
19-10-11, 08:52 PM
Cheap compression testers always appear to me to have a strange gauge reading that doesn't relate to anything in particular, but it is a good comparison between different cylinders

Stuart
19-10-11, 09:00 PM
Cheap compression testers always appear to me to have a strange gauge reading that doesn't relate to anything in particular, but it is a good comparison between different cylinders

like 99% of RR's.... only any use for back to back testing

NOVABOY8
19-10-11, 09:05 PM
battery good and no throttle

mowgli
19-10-11, 09:06 PM
Throttle should be fully open

NOVABOY8
19-10-11, 09:34 PM
i do it again tomorrow