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Silencer Question

  • Quartermaster35
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Replied by Quartermaster35 on topic Silencer Question

Digging up an old post here........ I need to figure out how to get my bike quieter to keep my neighbors / wife happy. (I don't want to, but I need to.... BIG difference)

Anyone ever use something like the FMF 2 stroke silencer repacking material?

FMF Packing
1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
04 Jun 2025 17:38 #11

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Replied by Grussell on topic Silencer Question

I use silencer packing on my 75 DT250. I noticed it was a little bit quieter.
1978 DT400
1975 DT250
1976 YZ125X - my post vintage race bike
2022 KTM 300XCW - my race bike
The following user(s) Liked this Post: Quartermaster35
04 Jun 2025 18:51 #12

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Replied by MarkT on topic Silencer Question

CT3?  There's really nothing to "pack".  Make sure both the inserts in the outlet are present.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: Quartermaster35
04 Jun 2025 20:27 #13

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Replied by MarkT on topic Silencer Question

Oh, and if you're not using the stock airbox, open filters commonly found on CT's are LOUD.  Intake noise can sometimes drown out the exhaust sound!
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: Ht1kid, Quartermaster35
04 Jun 2025 20:39 #14

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Replied by Sneezles61 on topic Silencer Question

That’s a fact MarkT! For any of you with the old snowmobiles with the carb facing right toward you, you’d know. The ones I grew up around, the skidoo 12-3 and such… In fact, if you wore loose clothes, it would sometimes get sucked into the carb horn!
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05 Jun 2025 05:56 #15

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