I have no idea if this will work but here goes first engine knock - any ideas what the problem is ( should I worry ) ? second engine sprocket slack this is in gear and just rocking the rear wheel back and forth. seems like an awful lot of movement to me, it makes riding in slow traffic somewhat snatchy. https://youtube.com/shorts/U2dtFM05IrQ https://youtube.com/shorts/Th0ShcVDx8w triumph Bonneville 865 se 2010 I will confess to not a lot of use, the oil and filters were changed last year along with a new timing chain spring which I thought would stop the knocking but apparently not. probably only done a hundred miles since. mileage is just over 12k. any help would be most apricated
I can't hear anything out of the ordinary with the engine TBH although it"s not a bike I'm familiar with. Everybike I've ever owned has had "play" like that in the final drive when in gear. There has to be some play or shifting gears would be virtually impossible. For comparison this is my dirtbike.... ....this is my 3 month old Triumph 1200 twin... If your bike feels "snatchy" in traffic check the clutch adjustment and operation.
Hi thanks for your prompt reply. Your videos of the drive movement are reassuring. The knocking is shortly after the beginning there's around half a dozen knocks and then it stops and sounds ok for the rest of the time. Sometimes it's a lot louder and lasts longer, I was wondering if maybe a valve was slightly sticking or something
You chain looks like it needs lube , I would check the tension of the chain as well, too loose or too tight can make gears notchy.
@Stephen Martin Just sold my 865 but it was the same and quite jumpy at times not scary or out of the normal. I just took it as part of the package. And it rode like a dream. Joe
Brief knocking on startup could be oil starvation to the top end or cam wear. Check oil level. Was oil change done by yourself? I'd want to know the exact type and grade of oil that's in it. Have valve clearances ever been checked? At that mileage they're certainly due, would have given opportunity to inspect the cams too. Forgive me, not a criticism but changing a timing chain spring seems a bit of a left field attempt at a fix if the clearances haven't been checked/done. It is easier though
hi sorry for the late reply, my brother passed away and had the funeral so not been back here since. I did my own oil and filters change, I used Motul 5000 4t 10W-40. I have to say I have used the bike a for a few runs since and it has greatly improved, so maybe just a little dry after standing all winter. I haven't checked the valve clearances yet although it is on my to do list. thanks for the replies.
@Stephen Martin . Firstly may i convey my deepest symphyses' for your loss. Always sad to lose someone so close. Being honest i think your 865 is fine. When i start all my Triumph's I just start no throttle no revving just let them sit and go through their own diagnostic bits for a minute or so and pump the oil around. Do have a good weekend. Joe.
I've purchased the valve cover gasket and seals for the screws, unfortunately we have the great grandkids this weekend so I've no spare time to check the valve clearances, so hope the weather holds into next week.
Right have taken the valve clearance readings all 4 exhaust valves 34 inlet from the left 26 - 24 - 20 - 20so cams are out along with the shims. Unfortunately my digital vernier calipers are playing up, not giving consistent readings so have purchased a metric micrometer from ebay a second hand Moore & Wright, so when it arrives I can work out what new shims I'll need.
Right have taken the valve clearance readings all 4 exhaust valves 34 inlet from the left 26 - 24 - 20 - 20so cams are out along with the shims. Unfortunately my digital vernier calipers are playing up, not giving consistent readings so have purchased a metric micrometer from ebay a second hand Moore & Wright, so when it arrives I can work out what new shims I'll need.
Have the sizes worn off the shims? If they're still readable you can work out what size you need without a micrometer.
Just odd bits left I can't read any of them but the micrometer has been posted already so should only be a few days before its here. Then it's going to be how long it takes to get replacement shims. Hopefully maybe able to jiggle a few of them around if I'm lucky, as no doubt they will be a few quid.
When I reshimmed my Street Scrambler I used Suzuki shims as they were much cheaper, not sure if your bike uses the same size dia shims.
the micrometre arrived and shims have been measured, now providing my maths is ok the shims I've ordered should be here by Wednesday. I ordered from my local triumph dealer as no postage. all I need then is for the weather to behave so I can re-assemble.
