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RD 350 Petcock Screws

Started by MRDRcycle, October 24, 2019, 05:46:59 PM

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MRDRcycle

October 24, 2019, 05:46:59 PM
Does anyone know the exact size of the 2 small screws that fasten to diamond shaped cover for the fuel lever/switch?

Mine are worn and I would like to replace them with alan head screws.

quocle603

#1
October 24, 2019, 08:25:38 PM
I believe they are m3.  I switched over to allen and accidentally over torqued them and actually stripped the aluminum threads. I went back to philips and did not have any issues as long as I used a #1 philips

Just be careful!
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

rodneya

#2
October 25, 2019, 10:21:22 AM
he petcock rebuild kit I bought came with 2new allen head screws, look like m3 if I measure them

MRDRcycle

#3
November 02, 2019, 01:34:30 AM
Thank you! I took your advice and ordered new philips head screws direct from yamaha for  a couple of bucks.

quocle603

#4
November 02, 2019, 10:14:36 PM
No problem!
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC
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