P200 clutch in a P125 tuned engine

[Vespista_ZD]

Hello everyone...currently i am building a VMC 177 Super G on my P125 engine, cases ported and matched to cylinder, Mazzu racing crankshaft, BGM fast flow SI24 carb, BGM Big Box Touring exhaust and so on...now i ran into a problem last night...i have a 68teeth primary gear in my cases, and i ordered a DRT 23teeth clutch sprocket from SC that says it goes on my 68teeth primary to get a longer transmisson...but...i had an P200 clutch laying around and i thougt it will be good for this engine to have a bigger clutch, so i ordered this DRT 23teeth sprocket for P200 clutch(115mm)...everything is new in the clutch(steel plates, friction plates, bushing...) i even removed the little "notch" on the cases and on the clutch cover just to be sure it doesnt touch anywhere on the clutch...finally the problem: i put the cluch on, torqued it to spec and when i tighten the clutch cover it presses the clutch, making it rub on the clutch cover...has anyone any advice or idea what is the problem because i dont have😢...after searching on the internet i found that SIP offers a thinner clutch washer(that sits between clutch and crankshaft bearing) that is 2.8mm thick...and now on the engine i have my original P125 one that is 3.4mm thick...will this solve my problem or is it something bigger i am missing?..thanks🤙

Bearbeitet 2. April 2022 von Vespista_ZD

[Da Woidi]

Look to the inner side of you're clutch cover. 

 

You have to remove some material on the top side. 

 

Paint it with a marker, mount it and spin you're flywheel. 

 

Remove it and you will see where the cover don't fit.