Time to fabricate an oil tank for this motorcycle.  The oil tank that came in the basket was actually designed for a different frame.  I thought I knew what brand of frame this was and found that models oil tank which also proved to difficult to install.  I decided that I would rather make my own.  The materials are easily found at the local metal store and welding/grinding is doable.   I went to the local cycle salvage yard and purchased a stock CB 750 tank for all the fittings including filler, inlet, outlet, drain, and vent.  The tank will need to go to the chrome shop for triple chroming and that should really make for nice unit.  Here is how I built my oil tank (still a work in progress November 8, 2003).

I stated by evaluating the area to hold the tank and decided which style would match the rest of the bike.  I placed most of the other equipment in their approximate place to see much room I actually had to work with.  For now, I placed the battery down at the bottom of the frame even though most oil tanks you see have a battery box incorporated into the unit.




I used the tape measure to get more specific on what size tank could fit into the space.




I choose a round tank for this chopper.  The 8" long shape proved to be a little tight so when I fabricate out of metal - I will make the tank about 7-1/2" long.  The 7-1/2" long by 6" diameter tank will hold about 3.68 quarts of oil when full.



Time to get more detailed in the fitment process.  I went through several set-ups of incorporating the battery box to the oil tank.  I tried setting the battery box both in front and in back.  Both setups took too much space from the oil tank.  Having the battery box built into the tank would remove about 3/4-quart from the capacity - not good.  I finally settled on having a separate battery box down low.




This picture is actually about the next project - build extensions to the exhaust pipes that came with the basket case.  I purchased the tubing at the same place as the sheet metal for the oil tank and used the chop saw to cut the baloney tips.  I may choose to join each rear pipe to the front pipe by welding directly together - that means bending and grinding to make the finish look good.  Another idea I had would be to build a chamber between the front and rear pipes that could function as a muffler as well as a connector.  The chamber would have to be small - perhaps only 4-6" long and maybe 4" diameter - just enough to weld in one or two traps like you see in hot rod performance mufflers.  If I just weld the rears directly to the pipes in front I will add baffles to each pipe.  More to follow in this project.






Can you do this yourself?  Mostly.  But I wanted the tank be good looking when chromed so I hired a sheetmetal shop to cut and roll the metal for the tank.  I also had the shop fold the metal for the battery box.  The battery box was a tough decision - nice versions are available from Custom Chrome that would work and they don't cost that much - but at least this one will fit without any cutting of a finished model.  The old Honda tank will be cut up to yield the filler, drain, vent (and baffle), inlet, and outlet.  Note that the exhaust pipes are welded up with no chamber - I will use drag pipe baffles for mufflers.



And thus after much hacksawing, grinding, testing,tacking, and re-doing each step several times - the tank is ready for final welding.



So who am I?  Here I am - CarlinLA