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Old July 1st, 2023, 02:28 PM   #36
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by jk3099 View Post
PS I'm going out of town for 1.5 weeks, so I won't be able to touch it or repeat any tests until then. I'm hoping I can order parts in the meantime and get ready for any maintenance I might have to do as soon as I get back. Really looking forward to getting back to working on this though :P
Sometimes, walking away and coming back with fresh eyes can help spot something that wasn't obvious before. Complete lack of vacuum is perplexing... Should at least show something.

1. inspect rubber manifolds. Make sure orientation with words "head" and "carb" printed on them facing proper direction. Both ends should be fully seated flush to flat surfaces on head and carbs.



2. do compression test. Remove both plugs and hold throttle WOT when cranking. Squirt 1cc oil into spark-plug hole. Repeat compression test. What did you measure?
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