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MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
Noisy Trials Bike----help!
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[QUOTE="wayneg, post: 685524, member: 24675"] The baffle on the middle silencer is a formed mesh screen not a straight through pip like the rear one, so repacking it would be a major PITA! When I used the solvent trick, I took the whole middle silencer off and duct taped the end of a grease refill cartridge (used to refill my grease gun!) onto one end and this seemed to seal one end off quite well. I then stood the thing on that end in a small empty bucket and poured the solvent in. Apparently some of the other guys over here use petrol rather than turps, so I guess that would work too. Another way of getting rid of the excess oil is to have a burn off in the exhaust pipe - such as suggested in the Tech Tips forum on [url]www.trials.co.uk.[/url] You can do this by giving the bike a major clean out up a hill until the excess oil in the exhaust catches fire. If you have about 10 full throttle runs up a decent sized hill in third gear you will notice a large amount of smoke coming out the exhaust - this means that the unwanted oil in your exhaust has caught fire or is smoldering. Then if you give the bike another blast up the hill every once in a while to keep the temperature up you will eventually burn the excess oil out of the silencers. This might not be such a good idea if you are riding near any forestry, but works pretty well over here on the grass farmland that we seem to be using every other trial. I guess the bottom line is that the person who had the bike before you either only used very little throttle on the bike when riding it (so it hasn't been thrashed and abused!), or was using far too much premix. The general rule of thumb for trials bikes is to use a ratio of at least 70:1 for the premix, unless you are riding the bike like a MX bike, and 80:1 is even better for a lower level rider like me - the top riders use 100:1, but they probably change the piston and rings quite a bit more often. Obviously if you are using too much oil then it has to go somewhere - usually straight into your exhaust pipe to goo things up. [/QUOTE]
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MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
Noisy Trials Bike----help!
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