The blackbird is a great bike!! Now what you have happen from the sounds of it is your choke is not working right, that or the temp sensor. It is natural for a bike to idle after it warms up on the choke. I'm going to look to see if i can find the service manual for your bike, in it it will have the trouble shooting because to be truthful i'm not sure what reading you should be getting on the multimeter for the system.
http://fiche.worldofpowersports.com/wps/Honda_OEM/HondaMC.asp?Type=13&A=291&B=24
this is the link to the mirco phish on the throttle body for your bike if you look on the phish you will see a E-10-1 that set is what works the choke ( cold start ) there is where your problem is starting.
Let er see if i can find the manual. I'll get back you here in a few. I do have to head to work in 30 mins so if you don't hear from till this afternoon i'm sorry for the wait.
M.Woodring
hey Tim I just got in and haven't had a chance to look into a manual I'm going to get on it after my shower. I wax assembly is better replaced, but lets get the test info so we can insure that is what is wrong. In the mean time you can check for any vacuum leaks in the system.
Be back with you in a few
Mark
hey Tim I have the manual for you but it's to big to put on fixya. Email me at [email protected]
Subject-blackbird, that way i know it's you and i'll send you the file via e-mail.
Mark Woodring
Hey Tim i'm not sure if you have gotten my last message, I have the manual and ready to send it to you but it is to big for fixya. email me and i'll send it to ya
[email protected]
Mark
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Hi Tim, it sounds like the "wax unit" on your bike has seized up. This is fairly common on this bike, and will create conditions such as you have described. The "automatic first idle wax unit" is connected to the engine cooling system by two hoses. When the coolant is cold, the wax contracts and a spring pulls an actuator which opens the idle air valves in the throttle bodies. As the engine (and coolant) warms up, the wax expands against the actuator and closes the bypass valves. The ecm will adjust fuel ratios accordingly.
Good luck, i hope this helps FixYa.
The electronic choke is failing and is in need of replacement. It is actually holding in a partially choked position.
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The bike does not have an electronic choke, but rather a wax sensor. I want to know whether it is likely to be in this sensor unit, the ECM or somewhere else
Thanks, that is what I suspected- Should I get new parts for the wax unit or just dismantle, and clean.
Regards
Tim
Thanks Woodring. I'll wait to hear further from you.
Regards
Tim
Hi I had the same problem on start up. I installed new was unit and it still goes to 3000rpm. We now think that an air lock may be causing it. Just a thought if the thermostat is open then the water will take longer to warm up?. Your thoughts guys.
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