November 5, 201114 yr went out for a little play today and wore my snowboard helmet for a change (couldnt find my trials one) any way the upshot is i can hear the engine more than i would normaly...... anyway when i give it gas it rattles/taps under load ie pulling hard in 3rd it sounds stop end to me so was thing maybe little end? if it is i was wondering what else woulod you do if the top end is off? rings? also how do you find out wether you have a, b,or c barrel?
November 5, 201114 yr the noise you hear is more likely piston slap ,the one everyone suspects the poor little end for when infact they hardly ever give any trouble,bores start off as standard and with wear people often fit the larger piston best have a specialist check this if you want it right not many engine shops have the required equipment for honing niccosal cylinder plating
November 5, 201114 yr went out for a little play today and wore my snowboard helmet for a change (couldnt find my trials one) any way the upshot is i can hear the engine more than i would normaly...... anyway when i give it gas it rattles/taps under load ie pulling hard in 3rd it sounds stop end to me so was thing maybe little end? if it is i was wondering what else woulod you do if the top end is off? rings? also how do you find out wether you have a, b,or c barrel? Hi, why do you think "top-end/little end"? From my experience if the rattle occurs under load on the gas it will be your bottom end! Top end rattles are more noticable on the run-down and on throttle off. Is there noticable vibration through the bars,do you get a tickling sensation through the jewls while sat on the bike?
November 5, 201114 yr Author Hi, why do you think "top-end/little end"? From my experience if the rattle occurs under load on the gas it will be your bottom end! Top end rattles are more noticable on the run-down and on throttle off. Is there noticable vibration through the bars,do you get a tickling sensation through the jewls while sat on the bike? it only taps on acceleration, its a bit vibey although its the same as when i got it 2yrs ago. ill try the sitting test tommorow i presume at tickover/idle?
November 6, 201114 yr Author Try higher Octane gas cant get it over here.... can get octane booster though!
November 7, 201114 yr cant get it over here.... can get octane booster though! Very good point, i get a pinking noise when i use 95 ron fuel, try 98 ron+ shell optimax etc or an octain booster!
November 11, 201114 yr Picked up my '98 315 yesterday and it's rattling/tapping pretty much all the time (i.e. no difference regardless of throttle). The engine has had new bearings and rings but the piston is the old one - work was carried out by a Honda engineer apparantly. It's currently running on standard unleaded so I'll get some premium to try and I'm sure the silencer needs repacking (not sure if this can make a difference though). Anything else I need to look at before getting the carb off and looking at the jets?
November 15, 201114 yr Author right problem panic over..... i picked up another 99 315r one owner machine thats as genuine as i could imagine, still on the original tyres and plug!! anyhoo i cleaned the carb and changed the plug fresh gas etc, 1 kick to start after 4 years standing!!! thing is it sounds exactly like mine!! guess that i was just being paranoid about mine thanks for the answers lads!
November 21, 201114 yr My 315r was also pinking a bit today running it up in the shed.I never even considered it needed a higher octaine fuel,as im using 95 ron.Food for thought i suppose....
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.