Ktm Sx 125 Power Valve Problems at Guillermo Borum blog

Ktm Sx 125 Power Valve Problems. I found your post searching for the fix on my 14 year old son's 2020 ktm 125 sx that had a sticky powervalve. I've narrowed it down to the power valve arms. Just had top end apart and replacing rings and cleaning pv. There is a large flat sided adjuster under the large. Make sure your exhaust is tight and well fitted in to the exhaust port as the motor relies on the back pressure from the exhaust. My 16 125 has about 40 hours on it and my power valve does a simaler thing. It's feels free but there is a sticky point. The higher the mark, the later the two stroke hit. Remove the large nut, loosen the 8mm head lock nut at the 4 oclock position. It should have no affect on the top end since the pv is fully open at that time. Had power issues since owning it but decided today. It was starting to run bad, evenly, and lost solid power. I have everything moving freely now and have it reassembled. All seems good so far, but before reassembly, the power valve mechanism doesn’t seem to want to close all the way. Doing top end on 2021 125 sx and i cleand the powervalve and the bores for the barrels and now one of them does not want to.

Remove the large nut, loosen the 8mm head lock nut at the 4 oclock position. All seems good so far, but before reassembly, the power valve mechanism doesn’t seem to want to close all the way. I have everything moving freely now and have it reassembled. Just had top end apart and replacing rings and cleaning pv. Doing top end on 2021 125 sx and i cleand the powervalve and the bores for the barrels and now one of them does not want to. Make sure your exhaust is tight and well fitted in to the exhaust port as the motor relies on the back pressure from the exhaust. It should have no affect on the top end since the pv is fully open at that time. My 16 125 has about 40 hours on it and my power valve does a simaler thing. Had power issues since owning it but decided today. I found your post searching for the fix on my 14 year old son's 2020 ktm 125 sx that had a sticky powervalve.

Sell 2002 KTM SX 125 POWER VALVE GOVERNOR (D) 02 SX125 in Orlando

Ktm Sx 125 Power Valve Problems I have everything moving freely now and have it reassembled. Remove the large nut, loosen the 8mm head lock nut at the 4 oclock position. It's feels free but there is a sticky point. All seems good so far, but before reassembly, the power valve mechanism doesn’t seem to want to close all the way. There is a large flat sided adjuster under the large. Just had top end apart and replacing rings and cleaning pv. I've narrowed it down to the power valve arms. It should have no affect on the top end since the pv is fully open at that time. It was starting to run bad, evenly, and lost solid power. Had power issues since owning it but decided today. I have everything moving freely now and have it reassembled. Doing top end on 2021 125 sx and i cleand the powervalve and the bores for the barrels and now one of them does not want to. I found your post searching for the fix on my 14 year old son's 2020 ktm 125 sx that had a sticky powervalve. My 16 125 has about 40 hours on it and my power valve does a simaler thing. Make sure your exhaust is tight and well fitted in to the exhaust port as the motor relies on the back pressure from the exhaust. The higher the mark, the later the two stroke hit.