ET-340 engine with Mikuni VM-34 carb... ?

Lasse

Lasse

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Mar 6, 2005
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Hi !

I have put an Mikuni VM-34 carb on my ET-340 engine,
Have someone else here done it on a ET-340 engine ?

I would like to know what jetting you have found work !

Any help appreciated.

THANX !













I left the heat shield in place from the old carb,
but I do not think it is necessary.


:2strokes:
 

hey not only is the heat sheild important but you should make a sheild that deverts air coming out of your fan shroud away from you uni filter keepin the air going to your filter cool and constant i had to do it to mine when i went to filters and socks. you can attach the sheild to your clutch cover that way it gets sent out of the motor area hope that helps
 
jfpsteve said:
Nice clean looking sled and carb re-fit you have there. Good job!!
Click to expand...
THANX !

xfaexciter80 said:
You should make a sheild that deverts air coming out of your fan shroud away from the UNI filter keepin the air going to your filter cool and constant.
I had to do it to mine when i went to filters and socks.
You can attach the sheild to your clutch cover that way it gets sent out of the motor area hope that helps.
Click to expand...
On the clutch cover it is already an hot air divider,
but on the pictures it is not in place since the secondary clutch is off.

:2strokes:



 
Last edited:
marc8_2 said:
Does it go faster ?
Click to expand...
On road: 90 Km/h ---> 55 mph
On hard packed trail: 80 Km/h ---> 50 mph
On loose trail: 73 Km/h ---> 45 mph


Track: 136x15x1"
Track pitch: 2,52"
Track drive: 7-Teeth


Gearing : 12 / 22


:2strokes:
 
Last edited:
Anyone who can share some information regarding jetting a
Mikuni VM-32/34 carburetor on the ET-340 engine ??


:2strokes:
 
Anyone who can share some information regarding jetting a
Mikuni VM-32/34 carburetor on the ET-340 engine ??
 
I have concerns on the angle of your carb. Can you put an angle finder on the top and tell us what it is ?
 
jamie said:
I have concerns on the angle of your carb.
Click to expand...
What is your concern about the angle of the carburetor ?
I have been running this setup for the last 3 seasons without any problems.
 
Just thought since your asking about jetting specs after 3 years of running it that way the problem might not be jet related and more an angularity problem that's all.
 
wls said:
I have a VM-36 on my ET-340 oval racer,
have a 340 main in it
Click to expand...
2ooosrx said:
We run VM-38 , pilot 47.5 , main 350 , clutch is 52.5 gram , spring is 120/310 , stock secondary the clutch is a P85 polaris.
Click to expand...
Sorry guys, the VM-36/38 is a completly different carburetor then the one I using,
so I have no use of your information.
THANX anyway !
 
jamie said:
Just thought since your asking about jetting specs after 3 years of running it that way the problem might not be jet related and more an angularity problem that's all.
Click to expand...
I have no problem with the sled.
I'm just curious about what jetting people using with the same VM-32/34 carburetor on the ET-340 engine !
 
2ooosrx said:
We run 38mm pilot 47.5 main 350 clutch is 52.5 gram spring is 120/310 stock secondary the clutch is a p85 polaris.
Click to expand...


Are you running the stock air box with that?

Thanks,
G
 
Anyone who can share some information regarding jetting a
Mikuni VM-32/34 carburetor on the ET-340 engine ??


:2strokes:
 
Anyone who can share some information regarding jetting a
Mikuni VM-32/34 carburetor on the ET-340 engine ??


:2strokes:
 
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