Clinician
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Post by tonymc on Jul 16, 2016 16:09:08 GMT -6
i replaced the top end. I found that the space on the piston between the two compression rings had broke and fell apart. it cranked right up but smoked just a little at first, I guess burning the oil off that I lubed it with, so far so good
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Clinician
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Post by tonymc on Jul 14, 2016 20:11:56 GMT -6
i know im getting fuel to carb, actualy installed a new carb, because the old one didnt have screws to access the float, I installed a new vacuum fuel pump also, checked all vacuum lines, gonna try to get rings seated this weekend, thanks for the help
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Post by tonymc on Jul 11, 2016 16:15:05 GMT -6
my compression was 90 to start with, after adding oil it went over 150. my oil level is good I set the timing like the video, set it on the t mark and made sure that big hole was in center between the 2 valves. I bought it with 75 miles on it and after putting another 100 on it, it started getting hard to crank. gonna go try to adjust valves again, if that don't work gonna try a new top end I guess
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Clinician
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Post by tonymc on Jul 10, 2016 18:19:01 GMT -6
that's not causing my compression issue or could it
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Post by tonymc on Jul 10, 2016 17:20:00 GMT -6
ive been running 87 octane gas instead of premium
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Clinician
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Post by tonymc on Jul 10, 2016 17:18:25 GMT -6
tonymc thanks for the replys. I did try to adjust valves already, I set intake to .004 and exhaust to .005. didn't really help any. I set the timing on the t mark and adjusted valves. when I put oil in spark plug hole my compression went over 150
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Post by tonymc on Jul 9, 2016 9:15:02 GMT -6
tonymc gy6 150cc will only start with starting fluid and shut down after a few minutes. have a spark and fuel to carb, my compression shows 90. will low compression cause it to shut down after starting
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Clinician
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Post by tonymc on Jul 9, 2016 8:51:19 GMT -6
tonymc have a trailmaster challenger 150cc with 180 miles that wont start unless you use starting fluid, but still hard to start. getting fuel and spark, compression shows 90. even with low compression would it start with starting fluid, it will run a few minutes after starting it with starting fluid then shut down. installed a new carb, that didnt help. would low compression cause it to shut down like that after its running
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