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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Noches
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<blockquote data-quote="Speedtwin" data-source="post: 179316" data-attributes="member: 5012"><p>If the fuel level is to high in the float bowl.</p><p>Setting up the carbs there are some basic steps that will help.</p><p></p><p>Tickler you may have to shorten the pin so it is not in contact with the float when float is at max height.</p><p>They are a set length which needs to be altered sometimes.</p><p>First of all set bowl/carb positions before getting the file out.</p><p></p><p>Carbs:</p><p>Carbs are surgically clean and functional.</p><p>I clean mine very year due to E fuels.</p><p>Things to check.</p><p>Have you the slim paper washer, bottom of the jet block installed and the block tight?</p><p>Tip make sure this gasket is not fouling the pilot hole.</p><p></p><p>Setting fuel level:</p><p>There is a small plug screw on the arm from the float bowl you can remove the screw and fit a bit of clear pipe run this up alongside the float bowl to reveal your true fuel level.</p><p>Adjust the floats as needed might need to file some grooves in pin.</p><p>Fuel level should be set just below the air mixture screw.</p><p></p><p>Leveling carbs:</p><p>I spend a bit of time getting the carb positions correct before going on to tune.</p><p>Check your carb/bowl is level, move on inlet stub as needed.</p><p>Move float bowl forward or back to suit.</p><p></p><p>Floats:</p><p>Floats the replacement white plastic boys are more buoyant I find than the old school copper ones, thus fuel level height can be to high with the new ones, I had to file new grooves to fix this.</p><p></p><p>Tuning carb once all the other stuff is right.</p><p>I start off the carb tune once the fuel level and carb set is sorted at 1 and a half turns out on air screw and tick over fast.</p><p>Once tuned return to normal tick over and tune again</p><p>My twins like to run rich and start easy.</p><p>Sorted.</p><p></p><p></p><p></p><p></p><p></p><p></p><p>Al</p></blockquote><p></p>
[QUOTE="Speedtwin, post: 179316, member: 5012"] If the fuel level is to high in the float bowl. Setting up the carbs there are some basic steps that will help. Tickler you may have to shorten the pin so it is not in contact with the float when float is at max height. They are a set length which needs to be altered sometimes. First of all set bowl/carb positions before getting the file out. Carbs: Carbs are surgically clean and functional. I clean mine very year due to E fuels. Things to check. Have you the slim paper washer, bottom of the jet block installed and the block tight? Tip make sure this gasket is not fouling the pilot hole. Setting fuel level: There is a small plug screw on the arm from the float bowl you can remove the screw and fit a bit of clear pipe run this up alongside the float bowl to reveal your true fuel level. Adjust the floats as needed might need to file some grooves in pin. Fuel level should be set just below the air mixture screw. Leveling carbs: I spend a bit of time getting the carb positions correct before going on to tune. Check your carb/bowl is level, move on inlet stub as needed. Move float bowl forward or back to suit. Floats: Floats the replacement white plastic boys are more buoyant I find than the old school copper ones, thus fuel level height can be to high with the new ones, I had to file new grooves to fix this. Tuning carb once all the other stuff is right. I start off the carb tune once the fuel level and carb set is sorted at 1 and a half turns out on air screw and tick over fast. Once tuned return to normal tick over and tune again My twins like to run rich and start easy. Sorted. Al [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Noches
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