Topic: CB750 K2 oil tank capacity: attn those making tanks...

[MCRider]

Hello:

Many here have been making oil tanks and the capacities vary and we wonder if adequate.

I took my K2 tank, which needed to be cleaned for my project anyway, plugged the holes and filled it with parts solvent to the top mark on the dip stick. Filled it with my "ratio rite" and it came to just a hair +/- of 3 quarts. There is about 2" of dead air above that where the breather/condensor is.

I have 2 manuals, one copyright 1972, one 1978. Both say total oil capacity is 3 quarts, no mention of filter change or no. Both say on a change to drain tank and engine, put 3 qts in the tank, run for 2 min, top up if necessary. So ther's just not much oil in the engine I guess.

If I were to build a tank, I would lean towards more capacity not less. But less will work.

JMHO

[HavocTurbo]

Largest I have seen on even the 1400cc Kawi is 3700cc's.

Which will take about a whole gallon with a filter change.

I'd be leaning toward 4 total quarts if I were going to make a custom tank. More the better. But 4 seems to be a good number for purchase price anyway.

[Bill/BentON Racing]

Spec book says 2.1 qt or 67 oz in oil tank ,they will hold dead on 3 as MC said,and 1.6 qts or 51oz in engine.Honda Motorcycle Service Specifications for all 1959-1980 (US models,the little red book),Bill

[bucky katt]

my titan has a 1300cc capacity

[Bill/BentON Racing]

3.7 qts total,Bill

[MCRider]

3.7 qts total,Bill

For the CB750? That's what I thought but both my Clymers are saying 3, though they do say to top up the tank after running for 2 minutes. So .7 in the engine/filter?

[Bill/BentON Racing]

No,1.6 ends up in engine,you will add .7 but level in tank will adjust down .9,so 1.6 in engine,did you know CB750 oil pump designed to pump 30 qts per minute @ max RPMs?,Bill