Just bought a 16 tooth front sprocket - I had no idea they were so cheap: $10 - $15 !! Makes it a very cheap way to sacrifice a bit of top speed (who needs to go over 160km/h anyway?) to get better acceleration and control. Anyway, I go to remove the sprocket cover to put it on the bike... but it looks like it's got a gasket on it! wtf? My dirtbike doesn't. Anyway, I hadn't heard anyone mention this before, so I was wondering if there was a way to get the cover off without having to get replacement oil and a gasket (yes, I'm cheap). If not, then I guess i'll leave the current sprocket on there until I can get a replacement gasket <!-- s --><img src="{SMILIES_PATH}/icon_sad.gif" alt="" title="Sad" /><!-- s -->
I dont think the gasket there serves any function, maybe it stops chain lube from squeezing pass. if nothing leaks out after you remove the cover, then nothing's gonna leak out after you put the cover back on without the gasket.
I'm with bombermanx on this one... I don't remember there being a gasket in all the times i was playing with sprockets. Also, just for a hoot... pick up a 15 tooth front sprocket. Amusingly enough it's the same front sprocket as is stock on CT110's. <!-- s:roll: --><img src="{SMILIES_PATH}/icon_roll.gif" alt=":roll:" title="Rolling LoL" /><!-- s:roll: -->
mine had a gasket but it tore as i took the cover off... i just cleaned it up and put it back on without the gasket and i havent had a problem. like bombermanx said, just to stop chain lube getting everywhere.. simon
lol, does that mean removing the gasket will result in chain grease going everywhere? meh. I've already bought the 16 tooth sprocket, but at $10 each I reckon I'll pick up the 15 tooth one as well - especially if i don't have to worry about gaskets <!-- s --><img src="{SMILIES_PATH}/icon_smile.gif" alt="" title="Smile" /><!-- s --> That way the next time I get out to the track I can have a play around and see which one gives me the most fun and the best times.
I'd be looking at your maximum required speed for a specific track. There's no point having all the acceleration you want, but then having to buzz the main straight at 160km/h because you've got a 15 tooth front sprocket. <!-- s:???: --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":???:" title="Confused" /><!-- s:???: -->
i actually just got some gasket maker and lined the cover when i re-installed it... it does the job...but even if you dont do that, im pretty sure chain lube wont go everywhere.... its too thick to make it thru those little cracks... just out of curiosity, where did you get your 16 tooth sprocket from? simon
Yeah, koma, that's why I figured I'd try both. Wakefield's a pretty short, tight course, making it perfect for little 250's... Last time I went out there I was just making it into 6th on the straight. Which is why I thought the 16 tooth would be sufficient - should increase acceleration without letting me hit redline on the straight. Of course, the better I get at the track, the faster I'll be exiting each corner, which would certainly affect my top speed on the straight. I get the feeling stock setup is almost perfect for wakefield - for a talented rider. But until I get the corner speed and approach correct, a drop in front sprocket size could be of benefit. I got the sprocket from Joe's Motorcycles for $15, but Canberra Motorcycle Center quoted me $9. I went with Joe's because I was already buying $650 worth of spares from them at the time
Changed sprockets easy - the gasket didn't brake, and the new sprocket went on like a charm. I noticed that the side walls on the new chain I got are a lot thinner than my old one - even though it's an 0-ring and classed as heavy duty. It's still a 428, and the links are the same length - the sprocket sits inside it and it runs fine on the bike. I just thought it was strange that it should be so much thinner. It will be interesting to see how it stands up to the new sprocket.
If it's got enough torque to mono a 240kg bike / rider combo, then its got enough torque to stretch a chain.
