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carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 9:55 am
by gonzothegreat
I'm having great difficulties installing the NC35 carbs on the NC30.
Currently using some new NC30 rubbers, would I need the NC35 rubbers?
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 10:46 am
by CMSMJ1
No, you don't need them, but they are easier to use.
I have 35 carbs on my 30 (with 30 rubbers) but as I am stripping it for a bit of TLC I decided to buy some new rubbers..and got NC35 ones.
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 11:07 am
by gonzothegreat
I must be doing wrong then, I can install the NC30 blind folded now, but it's a no go with the NC35 carbs.
my method:
pop in the front carbs
then the rear ones, using a flat screwdriver to lift the rubbers
Now this is all fine, but as soon as the rear ones are in, the front ones pop out!!!!

Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 2:54 pm
by amorti
gonzothegreat wrote:I must be doing wrong then, I can install the NC30 blind folded now, but it's a no go with the NC35 carbs.
my method:
pop in the front carbs
then the rear ones, using a flat screwdriver to lift the rubbers
Now this is all fine, but as soon as the rear ones are in, the front ones pop out!!!!

A little silicon grease around the insides of the rubbers might help? No mineral grease, it'll eat the rubber.
ps. That's a general purpose tip, I haven't tried it in your application.
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 3:02 pm
by gonzothegreat
ok, the following might be a very silly idea (which I will try it anyway,,,,)
how about, I fit in the front carbs as usual and clamp them with the ring screw thing.

Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 3:05 pm
by Drunkn Munky
35 carbs should go in 30 rubbers easier than 30 carbs as there smaller.
I always sit the back 2 in the rubbers then crow bar the front in using the cross beam by the headstock.
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 3:14 pm
by gonzothegreat
interesting tip, will also try this this evening.
Drunkn Munky wrote:
I always sit the back 2 in the rubbers then crow bar the front in using the cross beam by the headstock.
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 6:59 pm
by CRM
Hmmm i always put the front in first, then with the rears sitting slightly proud, a small bladed screwdriver to tease them in position. but old rubbers make the job so much harder, new rubbers and its a doddle
Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 7:02 pm
by gonzothegreat
they are new rubbers, and it's not a doodle

Re: carb rubbers for NC35 carbs to NC30 engine?
Posted: Mon Jan 24, 2011 10:10 pm
by Cammo
Just persist with it. I have a set of nc35 carbs on new nc30 rubbers, they fit fine although they can be a bit fiddly.
Sit the front two carbs half way in the rubbers, and while pushing down on teh carbs with even pressure use a screwdriver to get the back to carbs to just fit into the rubbers. That's the hard bit done. Then climb on top of the bike and stand on them, making sure to spread the pressure evenly across all 4 carbs.
BTW, standing on them is a honda recommended technique:
