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FLAU · 01-26-2015, 07:52 PM

Hi Ramon,

I hope you din't use a piston locking screw to tighten up the fan!

Frans

ramonramonet · 01-27-2015, 03:32 AM

Thanks LaDon for your help, everything you say sounds logical.
The last time I´ve leaned from 2.50 to 1.50 turns on Hover and High at once, resulting a big hole on head piston. Settings from other weather conditions maybe don´t work on mine. This time I´ll follow you ....click by click

ramonramonet · 01-27-2015, 03:34 AM

Hi Frans, I didn´t have troubles tightening up the fun, but I´m not sure what do you want to mean...

LaDon · 01-27-2015, 07:01 AM

It isn't just yours but air conditions are different all over the world. That and no 2 motors will be exactly the same even sitting side by side. A good starting point is to watch Tim jones nitro tuning videos. He has a series of three on YouTube. They are good. He tunes to the peak so a click richer than he does is not a bad idea

FLAU · 01-27-2015, 08:20 PM

Ramon,

Some people use a long (plastic) bolt, and put it in the plug hole. This bolt holds the piston from turning and this way you can tighten up the fan. On the other hand you will damage the piston.
You have a piston with a hole, so i thought this is maybe the reason.

Frans.

ramonramonet · 01-29-2015, 05:25 AM

LaDon, Tim Jones speaks so fast that I´ve got big problems to follow him at so technical explanation. My english is worse at listening than reading, and YouTube automatic english subtitles are really crap.

I´ll hear it several times again...

A 120SR guide with text would be best, looking for...

Frans, I didn´t use that, the problem was a bad needle tunning plus 30% nitro...

thanks for your advice, I´ll be careful next time anyway.

LaDon · 01-29-2015, 06:55 AM

I use 30% in ours also. We just have 2 head shims in the motor

ramonramonet · 06-29-2015, 06:24 AM

Sorry to be late but I would like to tell you the problem was on carburator: all those little holes inside were..CLOGGED by metalic dust, from last blust surely. Now is replaced by a brand new one.
Thanks everyone again for all your anwsers

Rob43 · 06-29-2015, 01:45 PM

New engine, or new carb?

ramonramonet · 06-29-2015, 03:15 PM

A complete brand new barrel and body carb Rob.

Rob43 · 07-02-2015, 06:13 AM

So glad you determined the cause. Thanks.

01-27-2015, 07:01 AM	#24 (permalink)
LaDon Registered Users Join Date: Mar 2012	It isn't just yours but air conditions are different all over the world. That and no 2 motors will be exactly the same even sitting side by side. A good starting point is to watch Tim jones nitro tuning videos. He has a series of three on YouTube. They are good. He tunes to the peak so a click richer than he does is not a bad idea __________________ Team Jr Americas

01-29-2015, 06:55 AM	#27 (permalink)
LaDon Registered Users Join Date: Mar 2012	I use 30% in ours also. We just have 2 head shims in the motor __________________ Team Jr Americas

06-29-2015, 01:45 PM	#29 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	New engine, or new carb? __________________ = Rb43 =

07-02-2015, 06:13 AM	#31 (permalink)
Rob43 Registered Users Join Date: Oct 2008 Location: Midland, Michigan	So glad you determined the cause. Thanks. __________________ = Rb43 =

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01-26-2015, 07:52 PM	#21 (permalink)
FLAU Registered Users Join Date: Dec 2006 Location: Curaçao	Hi Ramon, I hope you din't use a piston locking screw to tighten up the fan! Frans

01-27-2015, 03:32 AM	#22 (permalink)
ramonramonet Registered Users Thread Starter Join Date: Jan 2012	Thanks LaDon for your help, everything you say sounds logical. The last time I´ve leaned from 2.50 to 1.50 turns on Hover and High at once, resulting a big hole on head piston. Settings from other weather conditions maybe don´t work on mine. This time I´ll follow you ....click by click

01-27-2015, 03:34 AM	#23 (permalink)
ramonramonet Registered Users Thread Starter Join Date: Jan 2012	Hi Frans, I didn´t have troubles tightening up the fun, but I´m not sure what do you want to mean...

01-27-2015, 08:20 PM	#25 (permalink)
FLAU Registered Users Join Date: Dec 2006 Location: Curaçao	Ramon, Some people use a long (plastic) bolt, and put it in the plug hole. This bolt holds the piston from turning and this way you can tighten up the fan. On the other hand you will damage the piston. You have a piston with a hole, so i thought this is maybe the reason. Frans.

01-29-2015, 05:25 AM	#26 (permalink)
ramonramonet Registered Users Thread Starter Join Date: Jan 2012	LaDon, Tim Jones speaks so fast that I´ve got big problems to follow him at so technical explanation. My english is worse at listening than reading, and YouTube automatic english subtitles are really crap. I´ll hear it several times again... A 120SR guide with text would be best, looking for... Frans, I didn´t use that, the problem was a bad needle tunning plus 30% nitro... thanks for your advice, I´ll be careful next time anyway.

06-29-2015, 06:24 AM	#28 (permalink)
ramonramonet Registered Users Thread Starter Join Date: Jan 2012	Sorry to be late but I would like to tell you the problem was on carburator: all those little holes inside were..CLOGGED by metalic dust, from last blust surely. Now is replaced by a brand new one. Thanks everyone again for all your anwsers

06-29-2015, 03:15 PM	#30 (permalink)
ramonramonet Registered Users Thread Starter Join Date: Jan 2012	A complete brand new barrel and body carb Rob.

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