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Discussion Starter #1
2005 VTX1800C1

What are the 2 relays that are under the right side cover ?

from right to left: fuses, turn signal/position relay........but what are the other 2 ??
 

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One is the Engine Stop Relay(ESR), the other is the Fuel Pump Relay(Fuel cutoff Relay FCR)
Hint: FCR has TWO Black/White wires.

If you stare & compare the Fuel Pump schematic to your relays you can make a definite identification of either one..
 

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Discussion Starter #3 (Edited)
Thanks Hans....I see it now in my 2002-2008 VTX1800C/F Service manual in the Fuel Section & the Schematics......

I just overlooked it........

Thanks again.....
 

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Discussion Starter #4
On a unrelated matter, what is this WAX Valve I read about......

Is it associated with the automatic choke on our 1800's.....??? Just curious......

Does it expands or contracts according to temp of engine and adjusts the startup RPM's ??

I am correct here ?
 

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On a unrelated matter, what is this WAX Valve I read about......

Is it associated with the automatic choke on our 1800's.....??? Just curious......

Does it expands or contracts according to temp of engine and adjusts the startup RPM's ??

I am correct here ?

YES. it IS the coolant temperature controlled Fast Idle... NO CHOKE..

it does have a few issues over time.. not real common. YET.

it can stick... maybe in cold mode or hot mode...
moisture oxidizes its body and then sticks.

mine stuck about 4 years ago... in fast idle mode... a little cleaning and done.


Good digging Sir...
 

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Discussion Starter #6
Thanks Chuck for the explanation.......

What is the official name of this part......

Would like to look it up in my manual.....

My guess it would be in the Fuel System ( Programmed Fuel Injection ) Section of the manual ????
 

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Thanks Chuck for the explanation.......

What is the official name of this part......

Would like to look it up in my manual.....

My guess it would be in the Fuel System ( Programmed Fuel Injection ) Section of the manual ????


https://www.bikebandit.com/oem-parts/2005-honda-vtx1800-vtx1800f2/o/m151108#sch319397
https://www.ebay.com/i/191929229393?chn=ps
Honda part number 16046 mch 003
Name is Wax Assembly...
its bolted to the rear side of the throttle body..


manual page 5-70 and 5-71 .. on my manual
its called a Starter Valve in the service manual..



 
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