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It took about 10-12 years to make it right for Triumph on their 3 cylinders range. Just sayin…Guys,it will take MV 10 years to get the sprag right,same as the rear wheel hub.
Just sayin.
It took about 10-12 years to make it right for Triumph on their 3 cylinders range. Just sayin…Guys,it will take MV 10 years to get the sprag right,same as the rear wheel hub.
Just sayin.
Bike being collected Wednesday to fit new sprag, then have to ride it to nearest dealer to get map updates, £45 for updates and tests, bargain. Cheers. Steve.For info - the fix is in 2 parts. The sprag part itself is upgraded with finer tolerances and greater strength where required. They also identified what was damaging the previous sprags - it was todo with how the engine powered off and sometimes it put a load on the sprag causing undue wear. This part, along with a different firing up procedure (sparks after fewer turns than previously) have been changed in the latest ECU update. The ECU update takes around 5 mins to do. Whether your local dealer will charge you for it I can't say.
It took about 10-12 years to make it right for Triumph on their 3 cylinders range. Just sayin…
HmmmmFor info - the fix is in 2 parts. The sprag part itself is upgraded with finer tolerances and greater strength where required. They also identified what was damaging the previous sprags - it was todo with how the engine powered off and sometimes it put a load on the sprag causing undue wear. This part, along with a different firing up procedure (sparks after fewer turns than previously) have been changed in the latest ECU update. The ECU update takes around 5 mins to do. Whether your local dealer will charge you for it I can't say.
The 900 3 cylinders were very well known for this at the rebirth of Triumph (starting in 1991). Then came the injection models with the 955i from 1997 to 2001. At first the sprag clutch was not really accessible, and the time required for repairs made it costly. Then they change the design to make the sprag clutch easily accessible. I never really heard of issues after 2001, but within the list I was moderating (french triumph motorcycle), there was a lot of occurrences until the second 955i generation. By the way, the first generation of 955 had some other known issues (in particular because the engine was not stoping when you felt (no lean sensor): I had at that time a nice letter from Triumph explaining that my bike was not design to fall :-D but this out of topic)… Now that being said, if you compare 675 from Triumph and from MV, I'm quite sure there is difference in the design, most likely because they learnt from the past. And by the way, I had 2 955i first gen as well, and none had a sprag clutch issue, but I can tell many had issues in the list I was managing (different use of the bike, battery depleted, …)I have owned and own now 4 Triumph triples and never had a sprag issue on any of them.
What model/models are you referring to?
Triumph's have a very strong sprag clutch set-up compared to MV 3 cylinder models.
I have posted pictures showing the differences.
Theoretically yes, as long as you can get the engine to spin to higher than 1000rpm the ignition will start firing.
Try the workaround - press the starter button in, pull the clutch lever in untill the microswitch just engages and engine starts spinning (keep clutch in that position as if you are riding the clutch on pull away) - engine should start up easier. Not fully disengaging the clutch from the drive train helps to place sideways pressure on the drivetrain / sprag clutch making it 'grip' more. (my theory here - could be some other engineering reason for this but this does work)
Before my warranty replacement i lived like this for quite a few months with no starting problems using the workaround.
Glad your bike is back ,which dealer don the work ?Finally got my Rivale back after having the sprag replaced, apparently it had already been swapped out already. So it’s definitely had 2 new ones now
Had the map done last week with the major 7,500 mile service (£948 including new ride by wire throttle which broke on the way to the dealer) but been raining all week so not ridden it yet apart from very slowly in the rain and wind last Friday.Hello!
Make sure you have the latest upgrade of sprag clutch and the latest map as they changed the firing and stopping of the bike!!!
It is VITAL for the durability of the sprag!!!
I have the latest sprag design and map updates and not a problem in over 10000 miles!!
Take care