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

8.8, 10.9 12.4 signify the tensile strength of the bolt. These nomenclature are regarded as high tenssile as you can get lowere tensile strength bolts for applications where strength is not required. Stainless Steel bolts are generally rated below 8.8 so not recommended replacing where 8.8 bolts are...

Influencers on the Morini Forum now!

Regarding your bearings, the 500 drive side bearing was a modified QJ306 and the reason it was used which is fairly obvious to any engineer, is because of the extra loading any bearing would have to put up with, in going from the 350 fixed race ball bearing was to use larger split inner race with ex...

Don't you mean the RHS gear change that was English, European and the world apart from MZ. LHS only came about because Harley Davidson lobbied the American government to ban all motorcycle imports unless on the American side hoping to revive or force people to buy HD that were no match for motorcycl...

Any hydraulic hose manufacturer would make you up a new hose, just take them off and take them in and wait while they make you replacements.

Owing to the flat tappets, you should use a high ZDDP oil or simply high zinc content. I personnally use Valvoline VR1 10-60 as it is a racing oil has high pre catalytic converter wokeiness and has most importantly a high viscosity index. It is a semi synthetic but they also do a standard 20-50, che...

Composite ones were used in the early days and necessitated continual retorqueing, hence the probable adoption of sold aluminium ones. Although not really necessary, some people use a smear of Wellseal when putting the lids on. Just give the heads a retorque after perhaps 250 -500 miles.

Why not anneal the used ones? That's what you do with engines that have copper head gaskets, you can do the same with aluminium ones too!

You can change the registration class whenever you like and if you have road tax, then you will get a refund.

Has to be forty (40) years old. No Mot's, No tax. Cheap motoring or what and you are exempt from clean air zones!

I have K&Ns fitted to a 507 5speed. The carbs are 28mm and have no problems with flat spots right through to my imposed 7500rpm limit. At around the 3500 mark she pulls like a steam engine with the front end gently lifting. I did through experience on a SEI with K&Ns fit a half shroud over t...

The early bikes all had an oil pressure switch on the bottom transmission case, usefull to remove and check the state of the plain bearings by connecting up a oil pressure guage, should be 80psi when cold and around 55-60psi when hot at 2500 -3000rpm. I have a permanent oil guage fitted as all plain...

And don't forget to visit the 19th century 'top - down' brewery at Bishops Castle where they brew proper beer owned by the pub on site. So much better and authentic than the Crapt beers springing up everywhere purporting to be produced as traditional but all ingrediences coming from pre packed plast...

Try it with both petrol cocks open. I had this problem with a hybrid if pressing on with a lot of throttle, otherwise ok when pootling. Fitted the cube type petrol cocks and ditched the electric one which simply do not allow the fuel sufficiently. You need a flow rate of at least 0.3pints/min for 40...

FIAT shells do not have to be 'milled' down. They are slightly wider to your advantage, about 1/2mm depending make - Vandrvell or Glacier if possible the tang may need to be recut on the plain edge, the now unused tang canbe carefully planished back into position and if proud, very fine file to remo...