Hello forum
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Hi i am looking for new motorcycle and i am looking to gain more knowledge about this particular Yami.
Ill dig through the forum but i would appreciate if someone could answer right away. From which year are engine parts interchangeable ? Piston,head,cylinder,crankshaft etc. -
From 1989-2007 all models designated 3MB are compatible.
There are various revisions across the years to stator and flywheel, but the internals are compatible
The last few years added a starter motor and therefore the crank, stator and flywheel are not interchangeable, the rest of the engine is the same.
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From 1989-2007 all models designated 3MB are compatible.
There are various revisions across the years to stator and flywheel, but the internals are compatible
The last few years added a starter motor and therefore the crank, stator and flywheel are not interchangeable, the rest of the engine is the same.
@Calum Thank you very much i have found something about older models having different bore and stroke could you tell me which years and which engine designation they carry. I found same info on Haynes but there its just classified as newer models and older models nothing else.
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It's only bikes where the cylinder is 3BN. You'll see that the crankcases will have this marking on all years, but it's the cylinder you're interested in.
You'll also see this marking on the cylinder head where the cylinder will still say 3MB. My understanding was that this was only fitted to really early models.
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Here are the differences in the 3BN Cylinder head
It'll be marked on the cylinder head.
The 3BN head is interoparable with the 3MB head, but has a combustion ring which is said to adversely affect performance.
Here is a video of the difference between a 4FU cylinder and a Belgarda 3MB00P cylinder.
https://www.youtube.com/watch?v=P8okvTxe-BsHere is a 3MB cylinder.
You'll see the crankcases are stamped 3BN
For the most part you don't need to worry about it, it'll be rare that you'll find a DTR with a 3BN crank/cylinder and most of them will be 3MB cylinders. But it's just worth bearing in mind.
There are variations in CDIs and Exhausts which affect the performance, but these are less important as there are aftermarket support that recitfies any loss in performance
