wild foamy Posted October 12, 2010 Posted October 12, 2010 Hey peeps Been riding the XJ for a few weeks now and I'm happy with it, however, I've noticed when pulling away under load it taps or clicks, however when decelerating it doesn't tap. Is there a known cause for this and is there anything I can do apart from stripping and rebuilding the engine to fix it? -Steve
Moderator Airhead Posted October 12, 2010 Moderator Posted October 12, 2010 seized drive chain links can do this foamy, have a look at them when they are on the straight run between the sprockets, seized ones will be easily seen here. In my experience a new chain will be the only remedy if it proves to be the case.
chris66 Posted October 12, 2010 Posted October 12, 2010 ogoab has probably hit the nail on the head but you can also have a tight spot on the chain, and the chain has been adjusted incorrectly because of this. it tends to click under strain. if there is no signs of seized links roll the bike forward testing the chains tension every 8 inches or so and adjust correctly on the tightest spot you can find. chris
wild foamy Posted October 12, 2010 Author Posted October 12, 2010 Wouldn't be the chain, the bile does it when it's at a standstill aswell
chris66 Posted October 12, 2010 Posted October 12, 2010 oh well , that was the easiest fix, i get a little clutch rattle if i pull away with too little throttle, can you give any more information. chris
wild foamy Posted October 12, 2010 Author Posted October 12, 2010 wouldnt be clutch rattle, deffo coming from the head on the front just above the exhaust manifold, (which i assume is the outlet cam/valves)
bfc Posted January 29, 2011 Posted January 29, 2011 Hi, Just a thought, I had a 2002 XJ600 which developed a tapping noise from the engine, found out it was caused by a weak spring on the cam chain adjuster shoe. On the front of the engine between cylinders 2 & 3 you will find a hexagon headed stud behind which is the spring, When I had the problem the mechanic removed this stud & pushed a thin steel bar into the hole to increase the tension on the spring, this stopped the noise, the cure - a new spring. The noise on my bike occured all the time though, but might be worth investigating. Regards Bri
xv535 Posted January 31, 2011 Posted January 31, 2011 Hey Foamy I know you say it is a tapping noise so this is probably not the problem (but you never know). I had a tapping/popping problem last summer. It appeared to be coming from the top front end of the engine. The noise would appear after the engine warmed up. It was most noticeable when the bike was accellerating but was also present (and very annoying) when it was cruising at a steady speed. If the bike was in neutral and you opened up the throttle you could also hear it. It took a lot of looking to track it down and it turned out to be an air leak in the rubber intake boot between the carb and the cylinder. We had to replace the boot and the small ruber O ring at the cylinder. Good luck. Rocky
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