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01-07-2016 11:23 PM  4 years ago
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Gazza

rrApprentice

Australia

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spectra G gasser...
Hi guys , I have a Spectra G with a TRM 231 , torpedo pipe , problem I have is getting into a hover and engine comes on pipe then picks up rpm is this a tuning issue ...? Idling ok
transition ok .....
The pipe has the tip in it , do I take this out..

Cheers

Gary...
Melbourne Victoria
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01-08-2016 12:40 AM  4 years ago
Carey Shurley

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Orlando, FL - USA

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it could have an air leak

If its a trm engine, it should have an aluminum isolator block beneath the carburetor and use teflon gaskets between the block/cylinder and also the block/carburetor

make sure all of these are tight.

if nothing turns up try starting the engine and while holding the head spray something canned that has a propellant, (like a can of air for cleaning cameras) around the carburetor and the front and back of the engine

if its leaking, either the RPM will spike or the engine will quit every time
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01-08-2016 06:11 AM  4 years ago
Gazza

rrApprentice

Australia

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Thanks , have a alloy block and Teflon gasket had this off , checked refitted and tightened , am using stihl ultra synthetic at 40/1 ....replaced muffler gasket also....played with pitch and throttle settings , needle settings ....
I may try replacing the block and Teflon next....

Gary...
Melbourne Victoria
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01-08-2016 08:47 PM  4 years ago
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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next likely air leaks are:

cylinder gasket
crank seals
crank gasket

I'd suggest idling it and spray something like contact cleaner aroundthe base of the cylinder and around the crankshaft ends (make sure you hold or remove the rotor head)

if it changes rpm its pulling in the propellant through a leak
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