1986 fz 600 purgatory

[Hellgate]

It should run fine without insulation.

My buddy and I raced one in Phoenix in the summer with no vapor lock.

 

[FinalImpact]

It should run fine without insulation.

My buddy and I raced one in Phoenix in the summer with no vapor lock.

Racing uses fuel. Idling does not. Stagnet fuel if heated expands.
Maybe its as simple as routing the oem line differently? Off hand I'd also guess that steel and glass filters absorb more heat and could be adding to the issue. Any fuel path that offers restriction can aerate fuel under low pressure; add heat and you get vapor lock.

Does it have methonal fuel? All stupid things that add up.

 

[James Crispy]

Vapor Lock

What a great name for a terrible enemy.

I'll have to recheck the float bowls and their lines, new fuel line and re route it.

Thanks!

 

[James Crispy]

after checking out some vids online Vapor Lock is 100% what is happening.

to Parts Source first thing tomorrow AM.

Die! Gremlin Die!

 

[James Crispy]

Thought more about heat. How to reduce it. Why is this getting so hot?

A few things:

- use lowest octane gas possible instead of premium
- re- route the fuel line (as suggested)
- AND (you'll love this one) Don't use high temp spark plugs ! Switched these out with low temp.

This last one was likely the major contributor to all the Vapor lock.

So now guess what?

It runs GREAT!

I took the bike around for about 85km tonight. 0 problems. No stalls. Held the idle fine.

This may be it.

:Flash::Flash::Flash::Flash:

 

[James Crispy]

Full fairing back on because I'M GOING THERE:

 

[payneib]

Thinking of keeping it now you've squared away the gremlin?

 

[James Crispy]

Thinking of keeping it now you've squared away the gremlin?

! Hell no !

 

[FinalImpact]

Its living the dream of extended idle times and continues to run?! Good News!

 

[James Crispy]

Its living the dream of extended idle times and continues to run?! Good News!

I rode it around all day today like a normal person who has a bike that just f++king works !

O.Mazing.

 

[James Crispy]

DAY 2

Took it to Hamilton and back. 140km.

No issues.

Still selling it. :rockon:

 

[Hellgate]

Racing uses fuel. Idling does not. Stagnet fuel if heated expands.
Maybe its as simple as routing the oem line differently? Off hand I'd also guess that steel and glass filters absorb more heat and could be adding to the issue. Any fuel path that offers restriction can aerate fuel under low pressure; add heat and you get vapor lock.

Does it have methonal fuel? All stupid things that add up.

In 122 degree heat vapor lock can happen.

 

[James Crispy]

Never Forget (never repeat).

 

[payneib]

I'm gutted you're selling this. I'm gonna miss it! Love the framed shim. That needs to go on the wall in an oil spattered man cave, with a bar in it!

 

[TownsendsFJR1300]

Literally LOL!!! . . +1000^^^^


Look at all that experience you gained!!!

 

[Serzedo]

Well... Just my two cents!

You saved an awesome motorcycle from a lousy owner, you gave her a new life and I'm sure she loves you for that.

At least enjoy her a few months, I'm sure she will be awesome with all that care you give to her. Just give her a try to make some love appear.

"V"

 

[James Crispy]

:Flash: You are all awesome. :Flash:

 

[Andz]

Very pretty bike, keep it and mount it on the wall above the framed shim.


Sent from my iPhone 5S using Tapatalk

 

[FinalImpact]

View attachment 65216

Never Forget (never repeat).

Uhm, lets just say I couldn't help make this easier to see so EVERYONE can feel your pain!

 

[James Crispy]

Oh hell yes.

!

Gaze deeply. Ponder.