Triple Michunis...

[HS30-H]

Hi Guus,

Sorry for the late reply, but September is a busy month at work for me.

I think the setup looks good - but you will certainly want to clean them right out and treat them to a genuine Mikuni gasket / rebuild kit - they look pretty cruddy. The linkages might be a bit tired too.

Don't be too ambitious and try to disassemble them completely ( for example - don't try to take the butterflies off of their spindles ) as you probably don't need to do this. I would take out all the jets, the auxiliary venturis and the main venturis themselves, then the accelerator pumps ( you get new accelerator pump diaphragms in the rebuid set - and these are a "must do" ). You will probably have to detatch the floats from the top covers to put a new gasket on - so be sure not to mess up the float level settings if it can be avoided. Otherwise its all quite straightforward.

Judging by the standard of the rest of your car, you might be tempted to clean them up so that they look "new". In my opinion this would be a mistake, as the alloy on the earlier types used to dull down quite quickly and take on a nice patina. If you try to shine them up it will spoil them - so I would just try to clean them chemically with no rubbing ( except with a toothbrush or something soft ) to leave a nice greyish coloured finish. You might need to blast clean the manifold, in which case I would recommend vapour blasting or similar ( something that will not open up the surface too much ).

Seeing as your car is a replica of the Monte spec. rally car - will you be running air cleaners? I am wondering if the set that you have bought actually has the Mikuni "Air Horns" / Trumpets inside those air cleaners ( maybe not? ). They sure sound great without the aircleaners on. PLEASE do not fit a set of K&N or other "modern" aircleaners to these carbs on YOUR car - they would look quite incongruous!

If you have any queries on jet sizes or anything, please let me know.

You should ( might ) find the Mikuni factory labels / stickers are still on the carb bodies ( which would identify the type clearly ) - but if not, measure the size of the hole at the rear of the carb where it joins the manifold. That will tell you the size is either 40mm or 44mm.

If you need any spares, let me know.

Good luck!

Alan T.

[justaZcarguy]

Hey Alan!!!

Thanks for the reply that we have all been waiting for!!!

I still wish that I had 1/10th of your knowledge!!

Any advice on what would cause a lean miss in these carbs?? These sat for a while and the number one seems to have a pop to it. I can't complain tho, I got the whole car cheap....

Thanks for any advice...

Have a great Monday!!

(Sorry 'bout the K&N's )