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Old 07-11-2010, 12:29 PM   #1
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Default What plug for Novarossi N21BF??

Whats the best plug for the Nova N21BF? BESIDES Odonnell plugs. I would like a hot plug if its ok to run it in that motor.

Went to race today and couldn't get my buggy to run. Put in a brand new Odonnell 99 plug (what I been using) and still nothing. Tried tuning and still nothing. Motor seems to be fine, even ran good last time I raced it. But I havent got to run this motor very much. The buggy would seem to run OK if you leave the glo igniter on the plug, but as soon as I would take igniter away it would die almost immediately.
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Old 07-11-2010, 12:36 PM   #2
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nova c6g is the best if you can get one or the purple odonnel sport plug
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Old 07-11-2010, 12:41 PM   #3
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so the plug I was using (99) is a cold plug, correct? Which probably is my problem right?

you got a link for the OD purple sport plug?
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Old 07-11-2010, 12:41 PM   #4
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Why not OD plugs?
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Old 07-11-2010, 12:45 PM   #5
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just a couple told me today that they have had issues with OD plugs. But it dont matter to me, its just the one im using aint cutting it
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Old 07-11-2010, 12:46 PM   #6
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http://www.amainhobbies.com/index.ph...Plugs-Standard
it couldnt hurt to try and you might look at your fuel to
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Old 07-11-2010, 12:47 PM   #7
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I run the OD 100 and it's been flawless.
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Old 07-11-2010, 12:55 PM   #8
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do you guys think that my plug is my problem?
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Old 07-11-2010, 01:01 PM   #9
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OD 77 will work fine in that motor.
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Old 07-11-2010, 01:02 PM   #10
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what do you think the purple sport plug or the OD 77??

or either would be fine?
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Old 07-11-2010, 01:04 PM   #11
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Default Don't know......

Quote:
Originally Posted by jeff_ellis_9 View Post
do you guys think that my plug is my problem?
I would clean the inside of your engine really well with denatured alcohol, or motor spray, and oil it. If you want a slightly hotter plug I would try the mccoy mc-8, works great. Don't go too hot though or it will burn up faster, the plug....Check the fuel lines, tank, and clutch too.. it's always something simple.....
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Old 07-11-2010, 01:05 PM   #12
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Quote:
Originally Posted by jeff_ellis_9 View Post
what do you think the purple sport plug or the OD 77??

or either would be fine?
We ran od 77 in my boys and it ran fine with no problems.
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Old 07-11-2010, 01:10 PM   #13
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what all should I take apart to clean the engine? and by cleaning you mean dis-assembling and spraying out?

and oiling it, with what oil?
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Old 07-11-2010, 02:15 PM   #14
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by oil try a quality assembly lube like cold fusion just to lube everything up before you reinstall if you still have problems give mark at powerhouse a call hes very helpful
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Old 07-11-2010, 02:16 PM   #15
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Odonnel 99 is a medium plug. It's been a great plug for years.

http://www.odonnellracing.com/glowplugs/index.html
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