1981 550T Suzuki -new gas -clean air filter and compartment -wires on cylindoids are tight -fuel lines clear -fuel filter in tank clean -cycle has been sitting for approximately 5 months without being started. The bike has 3 positions for fuel switch only: PRI, RES and ON. I do not know a ton of information on the bike nor how to fix them but i am mechanically inclined and will try any suggestions to get this bike running, so i can take my children and wife for rides.
The carburetors need to be cleaned most likely clogged jets and passage ways.the low speed jet is what you want to pay close attention to make sure the are clean.
If you are going to do it yourself pay close attention do not mix up the carburetor parts always lay out the parts from each carb in the from left to right 1234 separation.
I suggest you get the service manual fir this bike before you attempt doing the work yourself.
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Did you mean to say tht the bikes engine wont stay running with out the choke on 'on' position? By the way PRI means prime i.e. you select tht mode whn you start the engine thn shift it to 'on' position,(once running) and on 'RES' is whn fuel stops flowing from 'ON' position.
The heading leaves me wondering Without.. (what?) The fuel tap PRI is prime, the fuel will flow through without the engine running, reserve and on, the motor has to be running and supply vacumn to opperate the tap, the vacumn opperated diaphram in the fuel tap can get old or dry out and cause problems as the little plunger sticks. If it starts on prime but stops on res or on this may be a problem, ride it but dont park it for extended periods in the prime position as it can flood the sump with fuel.
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