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CanoMod . A Main Hobbies . Boca Bearings

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New & Emerging R/C Helicopters > Blackhawk engine wont start
 
 
Bignose13
Senior Heliman
Location: Pontypridd

using 15% coolpower and an OS8 plug but this bird will just not start.
Got the needle two turns out and the low end level with the carb body but this baby aint starting.
The glow stick has plenty of juice and the starter is turning the engine over fine.
Anybody got ant clue because my mate is well dissapointed.

Thanks

Simon
03-24-2008 06:26 PM
 
 
rccarguy
Senior Heliman
Location: Boston MA

Are you using a starter shaft with a one-way bearing in it? If you aren't it's never going to start.

Unlike larger heli's that have a one-way in the linkage that spins the engine, on the Blackhawk you're spinning the engine directly. If the engine can't spin faster than the starter when it tries to fire it won't catch, so you need the one-way in the starter shaft...

Hirobo makes a 6 mm shaft with bearing, I bought one when I got my Zoom 450 and use it for both the Zoom and Rappy.

I learned to fly on a Trex, I learned to crash on a Blade CP...
03-25-2008 01:49 PM
 
 
Bignose13
Senior Heliman
Location: Pontypridd

We dont have a one-way bearing start shaft, and thinking about it, your right, because the heli very nearly starts but as you say the start shaft is stopping the motor from firing up. DOH
03-25-2008 02:29 PM
 
 
shooter
Senior Heliman
Location: Southwick MA.

Good points and and most likely the reason as it will spin faster than the engine can fire. How ever check the items I wrote about. All the guys will be glad to help you get her going.
Good luck, Ron at Pegasus USA.

Shooter
03-25-2008 02:49 PM
 
 
Bignose13
Senior Heliman
Location: Pontypridd

Thanks for the PM shooter will try this also.
03-25-2008 03:14 PM
 
 
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New & Emerging R/C Helicopters > Blackhawk engine wont start
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