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MC18 & MC21 flywheel differences


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2Smoke

 
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MC18 & MC21 flywheel differences

Wed Apr 25, 2012 6:35 pm » Post: #1 » Download Post

Anyone know what the differences are between the mc18 r5k and mc21 flywheels are?

Thanks
Paul
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StephenRC45
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Wed Apr 25, 2012 6:50 pm » Post: #2 » Download Post

Ignition timing, but I can't recall how much.
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2Smoke

 
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Wed Apr 25, 2012 6:55 pm » Post: #3 » Download Post

Thanks Stephen,

2 Degrees by any chance? Been doing a bit of digging, seems the '18 one is retarded compared to the '21 item, but the 28 item is retarded compared to the '21 so maybe a match for an '18?

Not racing until I've got a flywheel so may be a cheap summer!
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StephenRC45
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Wed Apr 25, 2012 7:06 pm » Post: #4 » Download Post

Nothing is as retarded as much as a MC28!

The '18's was retarded more than a '21 but only by a little, the '28's is much further retarded.
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2Smoke

 
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Wed Apr 25, 2012 7:10 pm » Post: #5 » Download Post

Ok, maybe worth searching for a '21 on then!

Thanks for that!
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paul g
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Wed Apr 25, 2012 8:08 pm » Post: #6 » Download Post

StephenRC45 wrote:Nothing is as retarded as much as a MC28!.


Apart from the owners Very Happy
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watfordhorn
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Wed Apr 25, 2012 9:16 pm » Post: #7 » Download Post

paul g wrote:
StephenRC45 wrote:Nothing is as retarded as much as a MC28!.


Apart from the owners Very Happy


haha, and you own one yourself!!!!!
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Andy
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Wed Apr 25, 2012 9:26 pm » Post: #8 » Download Post

Nice to see you back Leigh! Laughing

Not seen you post for a while! You must have a bleeper go off, set for the keyword "MC28"?! Laughing
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watfordhorn
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Wed Apr 25, 2012 9:44 pm » Post: #9 » Download Post

It's set for mc28 along with any other keyword like "lemon", "retarded", "slow" etc etc.

I have been busy getting the new rs bodywork fitted and getting the retarded mc28's up and running Sad. I just bought another 28 sp rolling chasis so should have one of each 28 sp and a full on tyga bike soon.....I must deserve lots of abuse for that some have kept my head down.

Dont worry, I have been keeping a keen eye on what's going on though!!
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paul g
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Thu Apr 26, 2012 7:57 am » Post: #10 » Download Post

watfordhorn wrote:
paul g wrote:
StephenRC45 wrote:Nothing is as retarded as much as a MC28!.


Apart from the owners Very Happy


haha, and you own one yourself!!!!!


Exactly, What was i thinking buying a 28! Embarassed
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silikesguiness
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Thu Apr 26, 2012 4:40 pm » Post: #11 » Download Post

bloody traitor paul Laughing
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watfordhorn
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Fri Apr 27, 2012 3:07 pm » Post: #12 » Download Post

silikesguiness wrote:bloody traitor paul Laughing


.....and he has just bought himself a four stroke!!!!
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cangus

 
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Mon Apr 30, 2012 1:29 pm » Post: #13 » Download Post

If using an MC18 wiring harness and MC18 coil in an MC21 motor, should the flywheel then be the MC21?
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Andy
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Mon Apr 30, 2012 2:03 pm » Post: #14 » Download Post

The harness and coils make no difference; it's the ProGraM in the PGM that makes the difference. Smile
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TuckerBag

 
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Mon Apr 30, 2012 7:12 pm » Post: #15 » Download Post

Assuming there is a difference in the position of the pick-up triggers on the MC18 and MC21 flywheels (in relation to the crankshaft), then to keep the timing standard you have to run the MC18 flywheel with the corresponding MC18 PGM (be it PGM-I or PGM-II) and run the MC21 flywheel with the corresponding MC21 PGM (PGM-III)

But the whole point of this thread is to find out exactly what the difference is between the MC18 and MC21 flywheels in terms of the ignition timing triggers.
I would like to know, because, it may be possible to advance or retard the ignition simply by swapping flywheels.
This in combination with offset woodruff keys may make quite a few different offsets possible in terms of ignition timing.

So back to the original question,... does anyone know what pick-up trigger difference there is (in degrees) between MC18 (R5k / R6k) and MC21 flywheels?
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