montesa315 Posted April 18, 2006 Report Share Posted April 18, 2006 had a slight problem with my 99 315 yesterday. was riding all day but the bike seemed to be knocking more and more. washed it off and stripped it down to find that the engine is full of sand. lovely. traced the problem back to sandy water that was getting in the airbox. hadn't done any wading (its not a landrover). has anyone out there got any good ideas on making the airbox a tad more watertight as im sure you'll imagine i'm facing a rather large bill now and i dont want it happening again. cheers Quote Link to comment Share on other sites More sharing options...
montesa315 Posted April 18, 2006 Author Report Share Posted April 18, 2006 cheers for all that mate. it seems i don't check it often enough. every 3 rides or so. it think ignorance has just put a big hole in my pocket. never mind. have learnt a big lesson. Quote Link to comment Share on other sites More sharing options...
dixie Posted April 19, 2006 Report Share Posted April 19, 2006 The 4rt seems to keep out the water really well but you must allways put a clean filter,with fresh oil every ride after all it only takes five mins. Cheaper than a rebuild! I have started to use notoil and it makes filter cleaning really clean and simple,plus the filter seal grease is spot on. No more petrol stink in the kitchen sink,the wife is happy to Quote Link to comment Share on other sites More sharing options...
billr Posted April 19, 2006 Report Share Posted April 19, 2006 5. Make sure sponge on filter foam edge is not perished. New filter every 12 months mate, they are only Quote Link to comment Share on other sites More sharing options...
dave guppy Posted April 19, 2006 Report Share Posted April 19, 2006 after every 3 rides,more like 3 years,should get a gasgas 280 Quote Link to comment Share on other sites More sharing options...
hillary Posted April 19, 2006 Report Share Posted April 19, 2006 This is what I do when I'm washing my Mont. Take off the rear fender, take out the complete air filter, stuff the airbox with paper towell, then bolt a flat alloy plate with a rubber backing over the airbox. It'll take half an hour to cut, file and drill a plate to fit, and then you can pressure wash to your hearts content and be sure no water gets in the airbox or engine. When it's all dry, take off the plate, pull out the paper, wipe round and refit filter and mudguard. Been doing that with all my Monts since 1998 and never a minute's problem Quote Link to comment Share on other sites More sharing options...
montesa315 Posted April 20, 2006 Author Report Share Posted April 20, 2006 yeah cheers dave. hows your leaking petrol tank. bike hasn't caught fire yet then. nice Quote Link to comment Share on other sites More sharing options...
ned1 Posted April 20, 2006 Report Share Posted April 20, 2006 by filling up the little hole on the filter cover will it not make it so tht the filter cannot suck in air????? Quote Link to comment Share on other sites More sharing options...
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