Bombus Speedshop

Bombus Speedshop
Wrenchin' without supervision since the seventies...
Showing posts with label CV. Show all posts
Showing posts with label CV. Show all posts

Tuesday, October 29, 2013

CV carb again

I had to do a cover for the "wire wheel" and solve a problem with a sloppy return spring on the mighty Dellorto carb so I had to go back to the trusty old CV for a season to pass technical inspection. (every other year here in Sweden)
This was a straight forward job. The CV had been working perfect before so it was just to remount it with all the old hardware, cables and airbox.

The fifth winter (11/12)


This really became a middle year in the life of Swebagger but still some stuff was made...
And even this year the first spring run was made in the middle of the summer.

# Seatpans (again)
# CV carb again (a quick swap back to the CV)
# Sidebag hinges (Tourpack residues)

Sunday, October 27, 2013

Carb and mufflers

To top off the engine rebuild I did an upgrade to the "in and out section" of the bike.
The old S&S carb was replaced by a CV with a alu flange to match the S&S intake.
 CV with aluflange and S&S intake


I found a complete OEM chrome lid with the stock black grill on a local swapmeet.
It had probably been sitting on a shelf for three decades or so because it was all covered in dirt and dust but under this it was a immaculate chromed lid hiding.

The immaculate lid with the grill intact


The lid I paired with a backplate I did from scratch together with a K&N filter from a Twincam that I bought at a swapmeet.
First I made the plate itself to match all neccesary holes, than I cut small pipes and welded to the backplate to get the right spacing for the K&N filter between the backplate and the lid.
I also made some handy nuts that I welded on the backplate to ease up the mounting of the lid.
Finally I welded support brackets to the backplate to mount in the stock mounts in the rockerboxes.
So much measuring to get everything all lined up and a perfect fit, but It became a nice piece in the end.

The CV airfilter backplate


Lid, backplate & K&N


Another modification I did was a remote idle adjuster.
My friends with Mikuni HSR's has a remote idle adjuster that I thought was a handy feature.
Another friend with a Buell S1 had also an external idle adjuster and he had a CV carb so that looked interesting.
Some hunting at eBay and a Buell idle adjuster cable was on the way over the pond to me.
When I got it home I realized that the thread at the Buell CV was larger than on a Harley CV.
But I just cut a smaller thread over the old and than it worked like a charm.

The external idle adjuster from a Buell S1 finally on my CV

And the end part got a pair of Supertrapp mufflers.
The new muffles was shorter than stock ones so I had to weld a extension bit on the stock pipes to get the total length to match up.

Supertrapp mounted in the new powdercoated brackets and ready to roar


I also removed the rusty and dodgy heatshields and replaced them with exhaust wrap instead.

Exhaust wrap on the front pipe running all along the left side.

Airbox, exhaust wrap and Supertrapp.

The second winter (08/09)


This time there was time to give the mighty Shovelhead some attention.
I also replaced the carb and the mufflers to match the new life of the Shovelhead
The Floorboards then moved to a more comfortable position for a guy at 190cm/ 6ft 3”.
Lower brackets for the side bags got upgraded some mounts and black powdercoat and the fenderstruts went the same way.

# Engine rebuild
# Carb & mufflers
# Floorboards
# Uppgraded lower bag brackets
# Fenderstruts