RZ Wont Start

[m in sc]

if you are keeping it stock, just get the cdi replacement one.

https://www.economycycle.com/shop/yamaha-rz-350/electrical/ignitions/zeeltronic-cdi-ignitions-controllers/cdiignition-pv-controllers/zeeltronic-stock-replacement-cdi-for-yamaha-rz350-requires-no-programming/

[Milan]

The bike has the F2 exhausts on it, and a larger set of jets.
So stick with that stock CDI unit?

M

[Milan]

"  Otherwise, throttle wide open and kick until it starts to pick up and don't close the throttle until it clears its throat and starts to rev.  "

Tried this.
Fired up.   

Why would it lose its fuel prime while just sitting for that week only?

M

[Brad-Man]

Evaporation...?

[teazer]

"  Otherwise, throttle wide open and kick until it starts to pick up and don't close the throttle until it clears its throat and starts to rev.  "

Tried this.
Fired up.   

Why would it lose its fuel prime while just sitting for that week only?

M

That's great news.  As to WHY?  Why do motorcycles do stuff like that? It's in their nature.  Run fine for years with total neglect and one day they just decide that today is the day to fight back. It may be as simple as a spec of dirt in the fuel tap holding it off its seat just enough to allow it to flood. Or the float needle was slightly sticky from ethanol in the fuel and the humidity was high or the ambient temperature or pressure changed enough to allow something to weep.

I normally leave the fuel tap on ON or Run or whatever they label it as except after standing for a while and then I start it on prime just to make sure there's fuel in the bowls.  Flooded motors happen and teh old wide open throttle trick usually works.

[m in sc]

thats why they have a prime setting. glad it was that simple.

[pdxjim]

If a bike has been sitting for awhile, I lean it over til fuel runs out the the carb overflows before attempting to start.

[Milan]

The thing is it only sat from Sunday to sunday

[dgorms]

That's all it takes! Sometimes it happens overnight

[1976RD400C]

When mine did the major flood out thing from the petcock leaking, I put a RD400 petcock on it and ran 2 hoses, one to each carb. It fits nice and you can reach it through the hole in the side panel. Remember to cap off the vacuum port on the carb that was used for the original petcock.

[Kawtriplefreak]

http://www.rzrd500.com/phpBB3/viewtopic.php?f=21&t=13677 
Here's how I did mine. I will be doing it again on the gray RZ.