Fuel pump relay and a carb plumbing question
#1
Fuel pump relay and a carb plumbing question
Is there a cheaper relay that interchanges for 36100-MM5-008 (fuel cutoff relay) on an '88?
We're trying gravity but it's still not starting.
Settle a disagreement for me: the black nipples coming out of the carbs (the higher pair, since the lower are for the fuel line. Are those vent to atmosphere, vacuum, or something else? I don't know what they're supposed to hook to.
We're trying gravity but it's still not starting.
Settle a disagreement for me: the black nipples coming out of the carbs (the higher pair, since the lower are for the fuel line. Are those vent to atmosphere, vacuum, or something else? I don't know what they're supposed to hook to.
#2
#3
And that's why my bike isn't running. Somewhere in there I've got vacuum hoses not hooked to anything. Where should those nipples hook to?
#4
The nipples should be blanked off. The only time you need them is when you're syncing the carbs
I'm not sure if I'd make the leap to vacuum leaks as being the cause of your no-start though. Unless you've got the California version, there's not much of a vacuum system on these bikes. Later models got a vacuum-fed fuel system, but the 87-88's used a fuel pump. That said, mine would idle even bypassing the fuel pump, so if it's not starting, I'd probably start with the basics and work back from there
I'm not sure if I'd make the leap to vacuum leaks as being the cause of your no-start though. Unless you've got the California version, there's not much of a vacuum system on these bikes. Later models got a vacuum-fed fuel system, but the 87-88's used a fuel pump. That said, mine would idle even bypassing the fuel pump, so if it's not starting, I'd probably start with the basics and work back from there
#5
The nipples should be blanked off. The only time you need them is when you're syncing the carbs
I'm not sure if I'd make the leap to vacuum leaks as being the cause of your no-start though. Unless you've got the California version, there's not much of a vacuum system on these bikes. Later models got a vacuum-fed fuel system, but the 87-88's used a fuel pump. That said, mine would idle even bypassing the fuel pump, so if it's not starting, I'd probably start with the basics and work back from there
I'm not sure if I'd make the leap to vacuum leaks as being the cause of your no-start though. Unless you've got the California version, there's not much of a vacuum system on these bikes. Later models got a vacuum-fed fuel system, but the 87-88's used a fuel pump. That said, mine would idle even bypassing the fuel pump, so if it's not starting, I'd probably start with the basics and work back from there
#6
I don't believe you need a fuel cutoff relay when going to gravity feed. When you remove the pump you have removed what the relay is controlling.
Last edited by TimBucTwo; 08-21-2018 at 07:35 AM.
#7
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