August 30, 20187 yr I recently had to remove the exhaust from my 2014 Beta 125. When I replaced it black oil dripped from the join between the expansion chamber and the silencer can. I replaced the O rings in the silencer which improved things a little but I'm still getting black oil drops from the joint all over the engine. Is there some trick to fitting the exhaust to ensure an oil tight alignment or am I doing something else wrong ? Many thanks Klutz
August 30, 20187 yr 3 hours ago, klutz said: I recently had to remove the exhaust from my 2014 Beta 125. When I replaced it black oil dripped from the join between the expansion chamber and the silencer can. I replaced the O rings in the silencer which improved things a little but I'm still getting black oil drops from the joint all over the engine. Is there some trick to fitting the exhaust to ensure an oil tight alignment or am I doing something else wrong ? Many thanks Klutz The thing that you are doing wrong is not cleaning the oil out of your exhaust system regularly.
August 30, 20187 yr 10 minutes ago, klutz said: That makes sense. Many thanks. Glad to be of some use.
August 31, 20187 yr Here is the tech scoop on this issue: Remove header pipe and silencer. Remove the two O Rings from the silencer. There will be two groves/recesses in the silencer (where the silencer meets the header pipe and where O rings are supposed to reside). Take out O rings and clean the groves with brake cleaner and let dry. Apply a thin layer (with fingers) of heat resistant RTV into the groves wait a little bit (about a minute and then instal O rings (new rings if old) into the RTV ladened groves pressing them in to the RTV. This is much better than putting RTV all over the pipe and holds the O rings in place in the grooves making a better seal as you slide the parts back together. Let dry completely and re-instal. This has worked on all Betas that I have worked on either mines or friends Beta's. Cheers BillyT Edited August 31, 20187 yr by billyt
September 9, 20187 yr Author Quick update Carried out the procedure suggested by BillyT. Now no oil leaking from exhaust. Many thanks, advice much appreciated Klutz
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