532 engine problem
in 2 Stroke Technical Questions
7 years ago
Greetings from Costa Rica!!
I´ve just bought an old 532 single carburator with points but I have a slight problem with my engine, it´s not really critical but it drives me crazy a bit. After 10 - 15 min running sometimes -not always- the engine suddenly loose a bit of power around 700 rpm - 1.000 rpm. it happens normally between 4.500 rpm - 6.200 rpm and I have to release a bit the throotle and then it works again, CHT and EGT are values are normal perhaps a little change of temperature in EGT probe during this moment . Normallly it works again in a few seconds playing a bit with the gas. then rpm estabilize again. It is not critical, but I don´t feel very confident with that.
- When the engine is cold receiving throottle without any problems from min to max rpm.
- Starting engine is without any problems , cold or hot, motor starts at the first pull.
- Idle speed is about 1.800 rpm -tiny tech-,
- Cooling is working ok, I add just destilated water no coolant, I fly wih very high temp above 30ºC always.
Any ideas/solutions would be appreciated
Thanks a lot..!!!
Epecifications Rotax 532
- Take off, From the beach 0m.
- CHT about 180-200F
- EGT 950-1000F sometimes 1050F
- Cooling sensor 170F
- Ide speed 1.800 rpm
- Capacitors, ignition coils and points are new.
- Generator coil resistance values are OK.
- New BING carburator kit, original settings
- New gas lines
- New cooling lines
- Fuel pump is working great.
- New spark plugs. Original 8BRES
- Gas / oil mix 1/50% Motul 710
- Old owner changed pistons and rings about 15 hours ago, -he told me that- I got some pics from the exhaust and it looks no so bad...I guess.
I´ve just bought an old 532 single carburator with points but I have a slight problem with my engine, it´s not really critical but it drives me crazy a bit. After 10 - 15 min running sometimes -not always- the engine suddenly loose a bit of power around 700 rpm - 1.000 rpm. it happens normally between 4.500 rpm - 6.200 rpm and I have to release a bit the throotle and then it works again, CHT and EGT are values are normal perhaps a little change of temperature in EGT probe during this moment . Normallly it works again in a few seconds playing a bit with the gas. then rpm estabilize again. It is not critical, but I don´t feel very confident with that.
- When the engine is cold receiving throottle without any problems from min to max rpm.
- Starting engine is without any problems , cold or hot, motor starts at the first pull.
- Idle speed is about 1.800 rpm -tiny tech-,
- Cooling is working ok, I add just destilated water no coolant, I fly wih very high temp above 30ºC always.
Any ideas/solutions would be appreciated
Thanks a lot..!!!
Epecifications Rotax 532
- Take off, From the beach 0m.
- CHT about 180-200F
- EGT 950-1000F sometimes 1050F
- Cooling sensor 170F
- Ide speed 1.800 rpm
- Capacitors, ignition coils and points are new.
- Generator coil resistance values are OK.
- New BING carburator kit, original settings
- New gas lines
- New cooling lines
- Fuel pump is working great.
- New spark plugs. Original 8BRES
- Gas / oil mix 1/50% Motul 710
- Old owner changed pistons and rings about 15 hours ago, -he told me that- I got some pics from the exhaust and it looks no so bad...I guess.
piston.jpg (You do not have access to download this file.)
rotax532.jpg (You do not have access to download this file.)
sparkidle.jpg (You do not have access to download this file.)
piston2.jpg (You do not have access to download this file.)
rings.jpg (You do not have access to download this file.)
sparkfullgas.jpg (You do not have access to download this file.)
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