MRC Forum- brought to you by www.morini-riders-club.com

Would you mind posting some contacts for the engineering business in SA that has done inserts for Morini heads? I am in Queensland and have some damaged threads, as do at least 2 other local Morini owners. Thanks, Garry

Simon,
Thanks for your input. I don't have any concerns about the work of this company, based in Brisbane, and yes, they want everything that hangs off the crank. I was hoping that someone had some info about the balance factor these motors originally employed, as a starting position.

I am considering having my motor dynamically balanced. Can anyone tell me the factory balance factor, and /or report on any factors used for sporty road use.

I have found listings for a replacement Cylindrical Roller Bearing on the Danish Morini site. NJ206=30x62x14 and NU1007=35x62x16. Is the original oil feed to the Plain bearing usually blanked off via the sludge trap when the Plain bearing is replaced by a Ball or roller bearing?

Paul,
Yes it does have the 3 holes. As I said it is a K model, and the plain bearing has been replaced with a 12mm wide 6908 Ball bearing. I was asking if anyone could provide the dimensions of the Roller bearing that is commonly used in this conversion.
Garry

On pulling my K 350 Sport down, I found that the Timing side bush had been replaced with a Ball Bearing measuring 40x62x12. Searching the Forum hasn't bought up any mention of this approach. Sadly the narrow race left most of the oil hole in the crank exposed, which I believe may have led to prematu...

mad muller, Thanks.

There have been a number of posts regarding undersize big end shells from King bearings. Can anyone supply the Part No for these? I imagine they will be -20" from the nominal 29mm size. It is very hard to find stockists of Plain bearings in Australia. Any alternatives would be handy too. Thanks.

I would like to buy a complete neutral switch from the Cagiva era Morinis.
Regards
Garry

I have now bored the neutral switch boss on my 500 and fitted a neutral switch from a 501 motor. If I could find another neutral switch I would do the same with the 350 but apparently they are scarce.

Thanks again for more helpful information. I did have my drive sprocket turned/ground down to 520 width and can confirm that those original sprockets are unbelievably hard!
I do hope to eventually convert to belt final drive, but want to be sure of my ratio choice before that step.
Garry

Paz,Thanks for the ultrasonic cleaner info. The bike looks great! I have swapped my forks to put the calipers behind too. Looks better, especially when the 320 disc placed the caliper further from the leg.
Garry

Paul, I couldn't read the markings on the red plastic above the spades in the photo you posted but you mention 2 spades marked 'Rosso'. The reg/rec that came spare with my bike looks to be the same as the one you photographed, but mine are marked G G R +B L C. Would you mind listing the connections ...

Paz,
Could you tell us what medium you used in your Ultrasonic cleaner for those carbs? They look much better than the results I have been getting from my cleaner.
Thanks
Garry