monty-python Posted December 24, 2004 Report Share Posted December 24, 2004 Hi all, I have my bike in a hundred bits at the moment and have decided to clean the front pipes. I would like to know what you guys use to decoke/ clean the front pipes with?? (the front header and mid section) The bike is a montesa 315 i know that this topic has been up before but cant find it!! Thanks in advance and merry christmas everyone!! Quote Link to comment Share on other sites More sharing options...
g4321 Posted December 24, 2004 Report Share Posted December 24, 2004 (edited) Hot Caustic Soda is the stuff you require. Pretty 'orrible & messy stuff to use. Need to watch it on alloy (can't remember if it is safe to use on alloy since I grew out of twostrokes several years ago!) Remember it as Caustic - like your wit! and Soda - what you should never add to a good Malt! The other way is to burn it out using either a propane or Acetylene blowtorch - this is also very messy (& smelly!) Just been checking an old '50's lightweight motorcycle & cyclemotor book - when 2 strokes were in their prime. Caustic Soda is NOT to be used on alloy. Some brief comments from the book - lets know ifyou want to borrow it! Make up the mixture at 2lb per Gallon of water (don't expect metric units in a 50's book!) Only ferrous parts can be cleaned this way Dont let the solution splash on your hands, it is an irritant - it will cause a rash 'similar to stinging nettles'. If the solution is kept hot after 1/2 minute or so the parts will be cleaned. Merry Christmas & Happy Hogmany to alll Edited December 24, 2004 by g4321 Quote Link to comment Share on other sites More sharing options...
da make Posted December 24, 2004 Report Share Posted December 24, 2004 Make up the mixture at 2lb per Gallon of water (don't expect metric units in a 50's book!) Handy Unit Conversion ! Quote Link to comment Share on other sites More sharing options...
feetupfun Posted December 30, 2004 Report Share Posted December 30, 2004 Caustic soda (sodium hydroxide) solution is very damaging to eyes so make sure you protect yours before you start any mixing and heating. Caustic soda solution will dissolve aluminium (alloy) and zinc within seconds so keep it away from anything that isn't steel, stainless steel, cast iron, PVC or PE. Glass is OK chemically but easily broken. Quote Link to comment Share on other sites More sharing options...
spokes Posted December 30, 2004 Report Share Posted December 30, 2004 You can also use Nitromors ( Paint stripper ) Block one end up then pour a load in and slosh it all about. Leave for about 10 mins then slosh again Repeat a few times then block the other end up and do the other end of the pipe. Watch your eyes when splashing it about. Jet wash it all out. Job done ** Dont leave it in the pipe for too long as Nitromors hardens ! Works for me ! Quote Link to comment Share on other sites More sharing options...
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