TT pro 70H

babajaga · 04-16-2012, 03:34 AM

HI everybody, my english its no so good, I hope that we will understand me. I have problem with this engine, doest not run. I think the carburator its out of tune. How many turns do I have on the mixture methering screw? I think that here is problem. The needle valve I have on 2,5 turn open. What need I set up as first? Glow its ok ( os max no.8 ). Thanks for all advices.

babajaga · 04-17-2012, 01:33 AM

Nobody can help?

crflyer · 04-17-2012, 08:02 PM

The manual doesn’t give the factory settings for the idle mixture . I had a similar problem.
Close the carburetor completely, close the idle mixture screw (turn clockwise) completely.
Open the mixture screw 2 turns, this will get the engine started and you can tune from there.
2.5 turns on the high speed valve should be ok, this engine like to run a little rich .

babajaga · 04-18-2012, 12:07 AM

You have right, in manual is nothing about the mixture screw. I will try it. I was trying start it yesterday and the motor doesnt start...I dont know where can be the problem. What glow plug do you have? My motor runs good and one dat I tune it a little bit and then I cant start it.

crflyer · 04-18-2012, 09:52 PM

I use an OS 8 glow plug,if it still will not start make sure the carb is clean.
Good Luck

babajaga · 04-19-2012, 12:41 AM

OK, thanks, i will try it this weekend.

babajaga · 04-19-2012, 03:44 PM

and how much % of nitro do you use? I have 20%

crflyer · 04-19-2012, 08:48 PM

I use Cool Power 30%

babajaga · 04-20-2012, 02:32 PM

I was trying today...the engine doesnt make any bafff...nothing. I install new gasket under the head, new plug os no 8, clean the carb, fuel filter...I am insane about it...the plug was dry, there was no fuel I think. When I bung the muffler, the air pressure to the tank was so weak and the fuel doesnt make any, or minimal move in the tubes...I had everything checked and the tubes are floating...It seems like small compresion or what...? Its something that I can checked when I demount the motor...? I dont know what can I do...

babajaga · 04-22-2012, 06:36 AM

I had to order a new piston ring, new piston and new cylinder liner...I hope this helps...

04-16-2012, 03:34 AM	#1
babajaga Registered Users Join Date: Apr 2012 Location: Slovakia	TT pro 70H HI everybody, my english its no so good, I hope that we will understand me. I have problem with this engine, doest not run. I think the carburator its out of tune. How many turns do I have on the mixture methering screw? I think that here is problem. The needle valve I have on 2,5 turn open. What need I set up as first? Glow its ok ( os max no.8 ). Thanks for all advices. Last edited by babajaga; 04-17-2012 at 01:38 AM.. Reason: no reply

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04-17-2012, 01:33 AM	#2
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	Nobody can help?

04-17-2012, 08:02 PM	#3
crflyer Registered Users Join Date: Dec 2008 Location: maine	The manual doesn’t give the factory settings for the idle mixture . I had a similar problem. Close the carburetor completely, close the idle mixture screw (turn clockwise) completely. Open the mixture screw 2 turns, this will get the engine started and you can tune from there. 2.5 turns on the high speed valve should be ok, this engine like to run a little rich .

04-18-2012, 12:07 AM	#4
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	You have right, in manual is nothing about the mixture screw. I will try it. I was trying start it yesterday and the motor doesnt start...I dont know where can be the problem. What glow plug do you have? My motor runs good and one dat I tune it a little bit and then I cant start it.

04-18-2012, 09:52 PM	#5
crflyer Registered Users Join Date: Dec 2008 Location: maine	I use an OS 8 glow plug,if it still will not start make sure the carb is clean. Good Luck

04-19-2012, 12:41 AM	#6
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	OK, thanks, i will try it this weekend.

04-19-2012, 03:44 PM	#7
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	and how much % of nitro do you use? I have 20%

04-19-2012, 08:48 PM	#8
crflyer Registered Users Join Date: Dec 2008 Location: maine	I use Cool Power 30%

04-20-2012, 02:32 PM	#9
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	I was trying today...the engine doesnt make any bafff...nothing. I install new gasket under the head, new plug os no 8, clean the carb, fuel filter...I am insane about it...the plug was dry, there was no fuel I think. When I bung the muffler, the air pressure to the tank was so weak and the fuel doesnt make any, or minimal move in the tubes...I had everything checked and the tubes are floating...It seems like small compresion or what...? Its something that I can checked when I demount the motor...? I dont know what can I do...

04-22-2012, 06:36 AM	#10
babajaga Registered Users Thread Starter Join Date: Apr 2012 Location: Slovakia	I had to order a new piston ring, new piston and new cylinder liner...I hope this helps...