octy to carbs

[natemoen]

How do you keep the same petcocks and simplify the routing? I know you can change petcocks and make it simpler but how to keep the existing ones and still have run, prime, reserve & off available?

Gary

Ditch the octy and then you only need one line from the rear nipple to the carbs. the front can be blocked off. The one nipple no acts as run, reserve still functions normal, and off still functions as normal (as long as it doesnt leak ). The front nipple was to bypass the octy for prime when the bike was not turned on but now run or reserve function the same as the prime would have.

[crazy steve]

How do you keep the same petcocks and simplify the routing? I know you can change petcocks and make it simpler but how to keep the existing ones and still have run, prime, reserve & off available?

Gary

Take the octy clean off the bike, plug the 'prime' outlets coming out of the petcocks, then run just one line from each petcock to each pair of carbs. You still have the 'normal' functions (prime will be another 'off'), but the petcocks are now manually operated...

[jimbyjimb]

I just eliminated my octy about twenty minutes ago for no other reason than I felt like it. So long as you don't suffer occasional bouts of amnesia and remember to turn your petcock off this eliminates a substantial amount of fuel line. I just didn't like the mess of all the lines. And 1/4" vacuum caps plugged my prime ports just fine. No leaks.

[fredintoon]

I just eliminated my octy about twenty minutes ago for no other reason than I felt like it. So long as you don't suffer occasional bouts of amnesia and remember to turn your petcock off this eliminates a substantial amount of fuel line. I just didn't like the mess of all the lines. And 1/4" vacuum caps plugged my prime ports just fine. No leaks.

Hi Jim,
if your taps get turned to Prime they let fuel flow into the front spigots which are blocked by those vacuum caps.
Be aware that the average vacuum cap can dissolve in gasoline over time.
What I use to block the front spigots is a short length of fuel hose with a ball bearing shoved up it.

[crazy steve]

Or if you want a bit more elegent solution for blocking the prime outlets, do this....http://www.xs11.com/forum/showthread.php?t=35443

[KA1J]

I do like the "prime" ability. I found that starting the bike after long periods of inactivity is much easier after leaving the bike in the prime setting for 30 seconds or so. Trying to start before that can take a long time. Starting after being in the prime setting takes seconds. As a daily starting routine I have no issues except that increasing the "choke" makes it harder to start & it starts fine without the enrichment circuit activated.

I wouldn't mind removing the octy, it's a logistical PITA. Having to remember to turn the petcocks to off when I stop the bike & on when I start it next is also a PITA. Doing so though is only a matter of habit and I can learn new habits easily enough.

As I have rebuilt the petcocks/vacuum valve and carbs, all is working well at the moment and I have no immediate pressing issue. When I bought the bike though, the carbs were leaking past the float valves and the crankcase did fill with gas and it overflowed through the airbox, spilling the oil/gasoline mix from the overflow tube to the ground . I don't want a repeat of that so eliminating a weak link in the fuel system is appealing.

[natemoen]

All prime does is bypass the vacuum valve for when you need fuel but have no vacuum.

After removing the octy you no longer have that vacuum issue so now on and reserve function just as prime did before.

[Jelmo11]

Ok so to delete the octy remove all lines the run a line from rear left petcock to lower t inbetween 1 and 2 then run another line from right rear to the t between 3 and 4 then lines for the bowl vents and that's it well what about the vac line??? And again I have a small tube that runs up from by my shift lever and. Left highway bar. What is it any ideas?

[DiverRay]

If the tube comes out of the back side of the cover on the left side, it's the vacuum line for the advance/retard. That line NEEDS to be plugged in to the #2 carb, NOT the intake boot. The other tube is a breather for the middle drive that should end up underneath the tank. It will start at the REAR of the engine, though, close to the round chrome cover on the left side of the engine.