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Old 10-29-2008, 12:01 AM
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Default OS P3 Plug Problem

Hey guys,

I got over 5 gallons on my OS Speed. The compression is very good. But I faced a problem for the first time with the P3 plug. The plug was 80% dead in just 7 tanks. I was not running lean either.

Please advise the nature of the problem. Thanks.
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Old 10-29-2008, 12:04 AM
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Originally Posted by joydude630
Hey guys,

I got over 5 gallons on my OS Speed. The compression is very good. But I faced a problem for the first time with the P3 plug. The plug was 80% dead in just 7 tanks. I was not running lean either.

Please advise the nature of the problem. Thanks.
Did you run out of fuel on power?
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Old 10-29-2008, 12:36 AM
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Originally Posted by joydude630
Hey guys,

I got over 5 gallons on my OS Speed. The compression is very good. But I faced a problem for the first time with the P3 plug. The plug was 80% dead in just 7 tanks. I was not running lean either.

Please advise the nature of the problem. Thanks.
cheek the bearings in it
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Old 10-29-2008, 01:14 AM
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Originally Posted by jpalessi
Did you run out of fuel on power?
Nope
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Old 10-29-2008, 01:15 AM
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Originally Posted by porkchop
cheek the bearings in it
Bearings are fine
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Old 10-29-2008, 01:55 AM
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I've had problems with the last couple of batches of P3 plugs . They just don't work but read as fine I don't know what has happened to them but everyone i know has had the same thing . There must have been a bad batch come through I could be wrong but i tried another brand plug after spending a fortune on the motor and it fixed it .
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Old 10-29-2008, 07:49 AM
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Originally Posted by porkchop
cheek the bearings in it
that could be uncomfortable
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Old 10-29-2008, 06:45 PM
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Smile same

i also have had the same prob. with p3's.. only 2 left on sheet pm if you find out the prob..
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Old 10-29-2008, 07:00 PM
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Have you replaced the rod in those five gallons? If not, do so NOW.
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Old 10-29-2008, 07:38 PM
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ive had problems with the new P4 and P5 as well.. not even running my engine at all.. i had to replace for another new one.. it works.. looks like OS is having issue with some;
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Old 10-29-2008, 07:42 PM
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Originally Posted by DirtyDezPirate
ive had problems with the new P4 and P5 as well.. not even running my engine at all.. i had to replace for another new one.. it works.. looks like OS is having issue with some;
OS? Issues? No...it's all your fault! or mine, or his, or anyone but OS, they never have issues, and when they do, it's still your fault, and your problem...man I need to let it go, can you tell they wronged me?!
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Old 10-29-2008, 08:59 PM
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Originally Posted by wingracer
Have you replaced the rod in those five gallons? If not, do so NOW.
I haven't replaced the rod yet.

I started the my buggy with a new P3 plug and I changed the HSN to 3 which is the stock setting. The engine started right away and after few seconds it shut off. The I changed the HSN setting 2/1/2 and the engine started and after few seconds shut off. There was a loud spinning sound from the clutch area when ever the engine was shutting off.
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Old 10-29-2008, 09:12 PM
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Originally Posted by joydude630
I haven't replaced the rod yet.

I started the my buggy with a new P3 plug and I changed the HSN to 3 which is the stock setting. The engine started right away and after few seconds it shut off. The I changed the HSN setting 2/1/2 and the engine started and after few seconds shut off. There was a loud spinning sound from the clutch area when ever the engine was shutting off.
Idle gap: 1 turn from just closed
HSN: 2-1/2 from closed
MRN: 3-1/4 turns from closed (flush)
LSN: 4-1/4 turns from closed
If your idle gap is not set correctly, you will just chase the tune. set it at 1 full turn , and leave it.. use the LSN to stabilize the idle
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Old 10-30-2008, 05:34 AM
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Originally Posted by jpalessi
Idle gap: 1 turn from just closed
HSN: 2-1/2 from closed
MRN: 3-1/4 turns from closed (flush)
LSN: 4-1/4 turns from closed
If your idle gap is not set correctly, you will just chase the tune. set it at 1 full turn , and leave it.. use the LSN to stabilize the idle
Thank you very much for the needle settings.

What are the other causes of a glow plug dieing too early?
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Old 10-30-2008, 09:24 AM
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Originally Posted by joydude630
Thank you very much for the needle settings.

What are the other causes of a glow plug dieing too early?
to lean, running out of fuel on power, and debris..
does or has the engine backfired?
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