Fuel pump relay wiring
#1
Fuel pump relay wiring
Hello I have a 88 hurricane 1000 that's been in storage for quite a few yrs.
Kids Building house etc. I had bought it as a repairable with mostly fairing damage ,
I had pickled the engine and it is in very good condition.
I have since repaired all the body work and repainted it .
I am now trying to get it started and installed a fresh battery and preoiled the engine checked spark plugs for gap and spark .
I was trying to prime the fuel system and was getting mostly the pickling oil but no fuel.
I then checked out the petcock for flow and that checked good . I then went to check the fuel pump . It seems to pump once in a while . I opened the drain plugs on the carbs and finally got some fuel to come out, I checked the wiring and found that the fuel pump relay was bad. I tried the fuel pump by itself with a 12v source and it pumps good.
I checked and the fp relay was 29 bucks, I had several Bosch standard relays and swapped in a standard auto relay. This relay has four terminals just like the stock one, which are 85 coil- 86 coil + 30 power in and 87 power out. Installed the fuel pump power wire to 87 the 12v power coming in to 30 . I have checked the wires from both the blue yellow and the yellow blue which should be the coil wires and they both have 12 v . I need a ground for the coil !!!
The wiring diagram does not show this detail. I have followed the wiring diagram and I am not seeing one which should work , i am wondering if the pump seems to work while cranking and then once the engine is running it gets a ground from somewhere and runs continuous while the bike is running I don't know for sure as it is not running yet . Some back fires and pops but no fire yet. Good cranking and oil pressure . any thoughts?
Kids Building house etc. I had bought it as a repairable with mostly fairing damage ,
I had pickled the engine and it is in very good condition.
I have since repaired all the body work and repainted it .
I am now trying to get it started and installed a fresh battery and preoiled the engine checked spark plugs for gap and spark .
I was trying to prime the fuel system and was getting mostly the pickling oil but no fuel.
I then checked out the petcock for flow and that checked good . I then went to check the fuel pump . It seems to pump once in a while . I opened the drain plugs on the carbs and finally got some fuel to come out, I checked the wiring and found that the fuel pump relay was bad. I tried the fuel pump by itself with a 12v source and it pumps good.
I checked and the fp relay was 29 bucks, I had several Bosch standard relays and swapped in a standard auto relay. This relay has four terminals just like the stock one, which are 85 coil- 86 coil + 30 power in and 87 power out. Installed the fuel pump power wire to 87 the 12v power coming in to 30 . I have checked the wires from both the blue yellow and the yellow blue which should be the coil wires and they both have 12 v . I need a ground for the coil !!!
The wiring diagram does not show this detail. I have followed the wiring diagram and I am not seeing one which should work , i am wondering if the pump seems to work while cranking and then once the engine is running it gets a ground from somewhere and runs continuous while the bike is running I don't know for sure as it is not running yet . Some back fires and pops but no fire yet. Good cranking and oil pressure . any thoughts?
#3
G'Day Randy and welcome to the forum,
Listen to Sprock as the man knows
If however, you do decide to keep the fuel pump/relay set up I'll be watching with great interest as I have just got an '87 which has sat for many years and will be trying to fire it up in the next week or so.
Good luck - and post some pictures of your bike when the mods allow you to post pictures. We just love pictures.
Cheers, SB
Listen to Sprock as the man knows
If however, you do decide to keep the fuel pump/relay set up I'll be watching with great interest as I have just got an '87 which has sat for many years and will be trying to fire it up in the next week or so.
Good luck - and post some pictures of your bike when the mods allow you to post pictures. We just love pictures.
Cheers, SB
#6
Join Date: Oct 2005
Location: Rebel Cave in the Carolinas
Posts: 812
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Hey:
As mentioned Gravity feed the fuel. The pumps were eliminated on later models and uneeded. They will go out and leave you stranded when you least need it... Fuel pumps are only needed on fuel injection bikes.... Parts left out don't need maintenance or replacement parts, save your money.........
Dub
As mentioned Gravity feed the fuel. The pumps were eliminated on later models and uneeded. They will go out and leave you stranded when you least need it... Fuel pumps are only needed on fuel injection bikes.... Parts left out don't need maintenance or replacement parts, save your money.........
Dub
Last edited by CBR1988; 09-23-2012 at 01:32 AM.
#7
Thanks
Thanks for all the reply's I think I have been convinced to gravity feed the carbs ,
Is there a sticky procedure for this ?
What do I do with the wiring ?
Just run new lines?
Do I need to connect anything electrically ?
I tried a search for gravity feed carburetor and a bunch of stuff came up but not much about doing this mod
I will do that mod and pull the carbs and check /clean them.
I read about the stick coils mod and it sounds like a great improvement. So much that I found some 08 coils and harness for 49 bucks on ebay coming this week!
Is there a sticky procedure for this ?
What do I do with the wiring ?
Just run new lines?
Do I need to connect anything electrically ?
I tried a search for gravity feed carburetor and a bunch of stuff came up but not much about doing this mod
I will do that mod and pull the carbs and check /clean them.
I read about the stick coils mod and it sounds like a great improvement. So much that I found some 08 coils and harness for 49 bucks on ebay coming this week!
#8
Thanks for all the reply's,,, I will gravity feed the carbs , Is there a sticky or procedure for this? Tried search gravity feed carburetor .. bunch of reply's but no specific directions on how to do this.
I will also pull the carbs and clean/ check them
I had drained the fuel from the carbs and gas tank before storage
I am going to do the stick coil mod as well. Found some 08 coils 39 and a loom for 19 coming next week
I will also pull the carbs and clean/ check them
I had drained the fuel from the carbs and gas tank before storage
I am going to do the stick coil mod as well. Found some 08 coils 39 and a loom for 19 coming next week
#10
Join Date: Oct 2005
Location: Rebel Cave in the Carolinas
Posts: 812
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