VirtualBiker Tech Site

washer trick,and drag pipes,increase horse power

Ihave a little poor boy trick that really worked for me. It was passed on to me by another member called hawgryder. i found out its a 70s trick . i wanted a little more performance from my exaust,but couldent afford a high performance exaust system. i use 1 and 3 quater drag pipes. to get more back pressure to the moter, to encrease my horse power by 5 to 10 percent, i drilled a quater inch hole in the pipe one inch from the end.on the inside of the pipe i screwed in a quater inch by one inch thunb screw.secured them (2) one in each pipe with lock wascers and nuts. you could also weld a 3 quater cercumferance washer to the end of a quater inch by one inch screw.centering it in the pipe one inch from the end. this trick has been tested on a dynometer and has increased horsepower to moters using one and three quater drag pipes. adjusting the direction 45 degrees or 90 degrees to the pipe gave different dynometer results in mid range rpms. 77 toy

61 Panhead Electric Start Conversion

I just converted my 61 Pan over to electric start using Harley parts. I didn't want to destroy the lip on the motor in case I want to restore the bike someday. I used a stock 65-69 inner primary and built a jig for my Dremel tool to take material off the outside edge of the area where the it fits into the motor sprocket area. I also had to take some material off the inner primary where the breather is located. I shortened an early breather on the overall exposed length, then I ground some material off the outside edge so I would have less material to grind off the inner primary. On the front sprocket, I used a compensator sprocket and put a 1/4" longer sprocket spacer behind it.
On the transmission, I bought a Cal Products trans case and tranferred my gears from my old transmission. This case is reinforced and has the lips on it to track in the early trans plate. I replaced the mainshaft with a 65-69 mainshaft (1/4" longer).
I bought a complete starter package from V-twin. I used the Hitatchi style starter kit for a '70 and later and because of that had to make extra changes. It would have been easier to use the 65-69 Prestolite kit. With my oddball combination I had to also purchase a 65-69 starter shaft and 65-69 starter collar which are shorter.
I bought a new Paughco electric start oil tank. I had to add 1/2" plywood spacer and make a battery tray to get the battery to fit right. I used a late model Softail battery and also had to make a battery holdown strap. This tank needs a lot of additional work to work right and the chrome sucks. You would be better off getting a used one and modifying it.
I didn't have enough room for the large starter relay that comes with the kit. I replaced it with a late model square starter relay mounted under the oil tank.
I'm currently using a stock width sealed bearing on the inner primary at the trans, but I may switch to a narrower bearing so I can use the late 4-speed bearing seal.
I tapped the front chain oiler hole and installed an allen plug. The other hole in the middle was already tapped and I plugged it too. I just use chaincase fluid in the primary. Make sure that your clutch plates are wet/dry if you do this.
Because I use footboards, I also had to purchase an electric start footboard mount for the front left mount.

PARTS NEEDED
Paughco style electric start oil tank
inner and outer 65-69 aluminum primaries
electric start clutch hub
V-Twin electric start kit for 65-69
Softail battery
Late motel starter relay
starter button
aluminum primary front footboard mount

So You Think The Board's Different?

There are these new changes. Some people call them Evos. Then there's Twinkies. Still Harleys. Things change and remain the same. At least that seems to work that way. Sometimes.

Now the board's changed. Some people embrace it, some bitch. Things change and stay the same. Format's changed. Dark background, light white and yellow font. Hard for us old farts to read sometime. Journals? Tech or non-tech posts? Whaddafuck is all this anyway?

It's just a medium. Newspapers, magazines, the 'net. They're all a way to learn new knowledge. Share an experience you had on your workbench with a customer's scoot or your own. Find out what made it do that. The new technology de-mistified. The old scooters' ways handed down from the greybeards to the young pups. Young wrenches marveling at the old ones' knowledge, and occasionally adding to it.

The more things change, the more they remain the same. The board itself didn't change. You are the board. Your experiences, your bruised knuckles. Your hard brought experience. And you pups. Asking questions. Learning. In a way you're probating for the board.

The more things change, the more they remain the same.

TEST ARTICLE

This is where a tech article will be posted after review. We have to review them to prevent posts in bad taste, You can comment on posts and add polls. If the article is long (when you write it you have to drop down to the "Extended text" box) then you have to click on "read more" to see the whole article. This could be fun.