sudden loss of power

[CYBORG]

I just went to the C5 web site and they don't make them anymore. I have to admit, I am not familiar with this company but I can see they probably made a high quality optical unit. These are probably more accurate than the magnetic types.

They are indeed high quality. And expensive. Easier to set then the Dyna. Fires 4 time on every point of the fireing order. And the ign. curve is adjustable, on the fly, to any one of four. Coil is huge, and hot. As is the spark. Just to name a few of the differences. They were made for C5 by a company named ARC, I think. Used by a lot of top drag racers. I don't recall all the info, but I have been running mine for several yers, and it has been flawless

[sickradsean]

What are everyones thoughts on using 3/16" fuel lines? The motion pro 1/4" are too big and slip off the flange on the fuel pump and allow gas to leak, but I like the look of clear lines. They offer a 3/16" which is slightly smaller than the 5.5mm that is OEM. Would this cause a problem? I would think if anything the snugger fit would be better.

[Sidecar Bob]

1/4" lines don't leak if you use clamps.

[cfairweather]

I recommend using 5.5mm or 6mm cloth covered fuel line. The cloth is important because rubber or the clear material will soon be hard as a rock when the sun bakes it. I ordered a bunch of the cloth covered stuff from England, but you can also buy a nice product from 4into1.com . I think the 3/16" is too restrictive and too tight of a fit.

[Sidecar Bob]

I use good quality automotive fuel line and it takes a looooong time to get hard. The stuff on Mr.H is about 8 or 9 years old and it was fine last year. I think it says Goodyear on it but their site says they brand their current product Continental.

[redglbx]

I prefer actual fuel specific rubber lines in the correct 5.5 mm size. Most of The clear stuff will get really hard after a short time & may crack/break at the most in opportune time. It does look cool but not durable ! My .02

[LuckyEddie]

I just went to the dealership a few years ago and bought a 6' length off the spool that their mechanics use. They have the correct size with no cloth.

[Whiskerfish]

If you do go with clear just don't go crazy over the air bubbles. Some guys have wasted Months trying to eliminate them when their actual issue was elsewhere.

[CYBORG]

If you do go with clear just don't go crazy over the air bubbles. Some guys have wasted Months trying to eliminate them when their actual issue was elsewhere.

My experience with clear hose is that it gets foggy in a short time in the sun

[Fred Camper]

Mine did that both because of a cracked coil and also due to the blinker wire powering the dyna. Once those were fixed (new Dyna Coils and Dyna Ignition on a relay) the bike has never dropped power again. Intermittent is more common on the ignition than on the carb side of things.

[sickradsean]

Mine did that both because of a cracked coil and also due to the blinker wire powering the dyna. Once those were fixed (new Dyna Coils and Dyna Ignition on a relay) the bike has never dropped power again. Intermittent is more common on the ignition than on the carb side of things.

That’s what I’ve been thinking. I’ll work my way back through the ignition wiring and see if anything is loose. I can prob go through and replace or sure up the connection on the red dyna wire to the blinker relay too.

[Sidecar Bob]

I've said it before: The Dyna ignition draws a lot of current and has no business being connected to the same fuse as the turn signals, brake light and horn.

[CYBORG]

my first dyna was hooked as directed by the directions to the turn fuse. One night it popped the fuse when I turned on the signal. After that I wired it direct to the battery via relay. Never happened again

[sickradsean]

my first dyna was hooked as directed by the directions to the turn fuse. One night it popped the fuse when I turned on the signal. After that I wired it direct to the battery via relay. Never happened again

I was wondering about if there was a better way. You don’t suppose there is a wiring diagram around here that shows how?

[cfairweather]

I think sidecar Bob has a good point. I thought of using the black wire with a white stripe, but after looking at the wiring diagram it uses the same same fuse as the turn signals, etc. This is the 15 amp fuse. I think the best way would be to add a fuse to the existing fuse block or replace the entire block with a modern fuse block. I will be starting two 1975 projects soon and that is what I will do for these.