Here a spray on lube would have ruined the chain and sprockets as the sand will stick to it and becomes a grinding paste. With continuous oil lubing, the sand will simply wash off. |
Complete setup on the Yamaha, the area has never been cleaned in 80,000 km and most of it is the wax type chainlube we used early on |
Close up feed tube on the Yamaha |
With the Yamaha this didn't quite work out as the front sprocket is only 15T, meaning the area between the front sprocket nut and the chain is quite narrow. I opted for a drip feed on the bottom run of the chain just after the sprocket instead. On the Bonnie I fed the front sprocket at the 10 'o clock position. After 15,000 km it's time for an evaluation...
The drip feed just after the front sprocket, as I did on the Yamaha, has proven to work the best. The feed to the Bonnie's front sprocket works but created too much fling off inside the sprocket cover. The other difference between the two ways of lubing is the feed just behind the front sprocket drips straight onto the chain and thus disperses better. This was especially noticeable after heavy rain, when the Yamaha chain proved better lubricated. The only other change I have made since the original installation is shorten the feed tube to the extreme. In the more conventional position at the rear sprocket the long standard feed tubes will work well as it remains cool. When fitted behind the front sprocket as we did, the transparent feed hose gets warm from the heat radiated by the engine. This will soften the hose, causing the hard plastic feed tube to sag under it's own weight. The remedy is simple, shorten the tube which reduces the weight on the hose and brings the solid rod in the feed hose closer to the chain. I haven't had an issue since.
As you can see in the photos, on the Yamaha I bolted the unit to the engine. This can create a problem as the hot air coming from the engine will heat up the chain oiler. The oiler itself can handle it but it will reduce the thickness of the oil, which can lead to over lubrication. In the Yamaha's case the oiler is protected from direct hot air by the starter motor, while being cooled enough by wind. In short it isn't a problem. The unit gets slightly warmer than the one on my T100 but never over hand-warm. I have compensated for the slight difference in temperature by 1/4 turn on the adjuster.
So how has it all worked in practice? Well, they are simply a blessing! The chain is being lubed continuously even when it rains, which should prolong chain life. No more dry chains! Not only are they continuously lubricated they are also very very clean as the slow flow of oil has a cleaning effect. We have just covered 15,000 km on this chain and sprocket set, so it is early days yet to say much about chain and sprocket life. The only thing I can say is that after the initial bedding in we haven't had to adjust the chains at all so far and there are no tight spots to be found yet.
It is perhaps good to understand that a chain oiler, any chain oiler, is not a simple fit and forget item. The amount of lubricant needed depends on a number of variables. As I said before temperature has an effect on oil thickness and thus influences the flow. A setting that will work perfectly at 0°C will over-lube at 20°C. When it rains there is more lubricant needed to compensate for the washing off effect and the same is true for winter roads with salt. The only way to see what is going on is by having a look and learning to see what is needed. With learning to see I mean that you will find, like we did, that the chains are so incredibly clean all the time that you might think there is no oil on it. I've more than once swiped my finger over a roller of the chain to see if there was any lubricant at all!
The unit mounted to the Triumph on the pillion footrest mount. I've protected the paintwork with nylon webbing. |
Adjustments can be made by simply turning in or out the only screw on the unit, which is in effect a needle valve. We use a 'base' setting of 1-1/4 to 1-1/2 turn out on the Bonnie and 1 to 1-1/4 on the Yamaha, because the unit on the Yamaha gets slightly warmer. In seriously cold weather, like we had when riding through Switzerland and Italy in frosty temperatures, we had them at 1-3/4 to 1-7/8 turn out when dry and 2 turns when riding in a snow storm...
Mounting on the Yamaha |
So what are the downsides of a Tutoro chain oiler? Eeh, well... don't know really! I can't see any point in going back to manual lubing as that will never keep the chain continuously lubricated with clean lubricant, nor can I see any point in switching to the more expensive Scott Oiler as that offers nothing more while having added complexity. I guess the gizmo-freaks among us would like to see a handlebar mounted computer controlled remote which checks the weather online and has rain, temperature and speed sensors built-in to work out the perfect amount of oil needed. For all others a Tutoro is about as good as it gets and for US$75,- to US$100,- (depending on the kit you want) is incredible value for money.