I do not understand how to remove the rotor

[e3steve]

Are there really 4 pages on "how to remove a rotor bolt" ?

Not if you just secure to bolt and roll the bike off the centrestand!

And only if it gets extrapolated along the lines of "....so which oil do you use?"

[LOUD MOUSE]

Hello j.
I don't see any way removing that bolt with any tool will damage one of these cranks.
I must admit that using the wrong tool on the bolt may damage the bolt.
May I suggest all think of all the pressures/torque that crank endures when the engine is running and we clutch and shift and brake!!!
I'd like to know how others tighten that large nut sort of thing at the left side so ya flatten the cone shaped washer!!!???. .....lm

Hi Steve,

I have to admit I have seldom seen a crank of a 250 / 305 engine which showed signs if this kind of "abuse", but I have seen many two stroke cranks twisted only due to the fact that one of the pistons seized during riding.

I think I gave the answer myself before the question dropped in. It is not likely to damage the crank with the method, but when the bolt is really stuck, this method can damage your crank.

Ed is very right about the bearings, not to mention the transmission bearing too,

Jensen

[e3steve]

Hi Steve,

I have to admit I have seldom seen a crank of a 250 / 305 engine which showed signs if this kind of "abuse", but I have seen many two stroke cranks twisted only due to the fact that one of the pistons seized during riding.

I think I gave the answer myself before the question dropped in. It is not likely to damage the crank with the method, but when the bolt is really stuck, this method can damage your crank.

Ed is very right about the bearings, not to mention the transmission bearing too,

Jensen

I'd say the r/h crank bearings are more likely to sustain damage from belting the friggin' wrench with a hammer. I prefer a more controlled method........like rolli...... Oh, never mind!

[LOUD MOUSE]

Hang in there steve!. ...lm

Hi Steve,

I have to admit I have seldom seen a crank of a 250 / 305 engine which showed signs if this kind of "abuse", but I have seen many two stroke cranks twisted only due to the fact that one of the pistons seized during riding.

I think I gave the answer myself before the question dropped in. It is not likely to damage the crank with the method, but when the bolt is really stuck, this method can damage your crank.

Ed is very right about the bearings, not to mention the transmission bearing too,

Jensen

I'd say the r/h crank bearings are more likely to sustain damage from belting the friggin' wrench with a hammer. I prefer a more controlled method........like rolli...... Oh, never mind!

[e3steve]

.....
I'd like to know how others tighten that large nut sort of thing at the left side so ya flatten the cone shaped washer!!!???. .....lm

W-e-e-e-e-l-l, I just secure the nut with a great big feckin' Stilson wrench to the underside of the l/h footpeg and rol................. Just kidding!! ☺☺☺

[e3steve]

Mr Giusti is currently taking bets on how many pages we can stretch this out to before it loses its momentum, btw!

[jensen]

Hi Steve,

Yes, maybe I'm too careful, since I don't use an hammer in any way on these bikes.
Anyway, I am serious about these things, as I hate to damage parts which are hard to come by, and there for I try to avoid using violence on these bikes.

As a system designer, I find too often people "repaired" the machines I designed with a large hammer, causing damage over 50.000 euro with one well aimed blow. I started to dislike hammers, and I got hypersensitive from people who are using these tools in almost every occasion.

Dave (and Steve) this is my last post on this subject, and I have said what I had to say,

Jensen