Go-Tech Engines Thread
Hey fellas I am looking for some running in tips for the Go GX5R as I have seen now 3 different suggestions, we have the manufacturers recommendation that came with the engine, the MassiveMods one and then "The Tuning Bible Thread" from this forum.......[
So any help/recommendations would be most appreciated
So any help/recommendations would be most appreciated
Tech Adept
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Joined: May 2008
Posts: 142
If you have Rod Part number 21-0600 and crank part number 21-0907T-03 yes it will work.
Hey fellas I am looking for some running in tips for the Go GX5R as I have seen now 3 different suggestions, we have the manufacturers recommendation that came with the engine, the MassiveMods one and then "The Tuning Bible Thread" from this forum.......[
So any help/recommendations would be most appreciated
So any help/recommendations would be most appreciated
http://www.massivemods.com.au/produc...e4cd77604e44ce
Cheers MM
I think I posted a while back about assuming when it comes to the go-tec/mg66 line of engines. Was out running in some new clutch shoes when the engine started lean bogging. First thought? What's wrong with my engine? Turns out nothing. When I got it back inside found the the pressure hose from the pipe had rubbed up against the new clutch bell, producing a hole in it. So again to all those that cry that the engines are unreliable it's most likely the nut behind the wheel.



I think I posted a while back about assuming when it comes to the go-tec/mg66 line of engines. Was out running in some new clutch shoes when the engine started lean bogging. First thought? What's wrong with my engine? Turns out nothing. When I got it back inside found the the pressure hose from the pipe had rubbed up against the new clutch bell, producing a hole in it. So again to all those that cry that the engines are unreliable it's most likely the nut behind the wheel.





Yep, spot on there Matt. If you look after your motor it's pretty unlikely to play up too much. It's normally something external from the motor itself that's causing the problem. The nut behind the wheel being a very common fault 
Hey Massive - pretty flash avatar and signature big fella. You going all up market on us

Hey Massive - pretty flash avatar and signature big fella. You going all up market on us
Yep, spot on there Matt. If you look after your motor it's pretty unlikely to play up too much. It's normally something external from the motor itself that's causing the problem. The nut behind the wheel being a very common fault 
Hey Massive - pretty flash avatar and signature big fella. You going all up market on us

Hey Massive - pretty flash avatar and signature big fella. You going all up market on us

Tech Regular
iTrader: (3)
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Posts: 307
From: TX
Good post Matt and I agree. I ran one of my old gen 5 7 ports for a club race 2 weeks ago. We are talking an 8 gallon motor with rear ceramic and 3 gallon old con rod. Anyway it lost power in the middle of a qualifier so I pulled it off the track. I temped it and it was at 432 degree farenheight
. It turned out that the glow plug came loose and it was sucking air so without ever killing the thing I tightened the plug back up and fattened the high needle 2 hours and put it back on the track. I finished the qualifier and the motor came of at 289. When I got home I took the motor apart and discovered the only things wasted were a $4.00 front bearing and the plug. It was crazy because I fully expected the motor to have no pinch left at all but it was perfectly fine.
. It turned out that the glow plug came loose and it was sucking air so without ever killing the thing I tightened the plug back up and fattened the high needle 2 hours and put it back on the track. I finished the qualifier and the motor came of at 289. When I got home I took the motor apart and discovered the only things wasted were a $4.00 front bearing and the plug. It was crazy because I fully expected the motor to have no pinch left at all but it was perfectly fine.
Tech Rookie
Joined: Feb 2010
Posts: 18
Hey fellas, need a little advice, got a new GO GX5R in my Losi 8ight T, looks a beast.........have heated it up etc. but the pinch on this thing is extrodinary, my starter box cant even turn the thing over, not even spinning the flywheel.
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
Hey fellas, need a little advice, got a new GO GX5R in my Losi 8ight T, looks a beast.........have heated it up etc. but the pinch on this thing is extrodinary, my starter box cant even turn the thing over, not even spinning the flywheel.
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
Hey fellas, need a little advice, got a new GO GX5R in my Losi 8ight T, looks a beast.........have heated it up etc. but the pinch on this thing is extrodinary, my starter box cant even turn the thing over, not even spinning the flywheel.
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
At the moment piston is at TDC, how much heat do you guys put on a new engine for first time starting? I got it pretty hot, too hot to touch?
Pre heat the engine
Prime it excessively so that its almost flooded
Take the plug out
Pre heat it again
Bump it on the box so the fuel makes a fine mist out of the plug hole
Pre heat again
Put the carb slide at just above idle
Put plug in
Start it
Should start straight away !



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