As I have just started to put my plenum back together, I thought I might as well check the plugs while I was at it.

I always thought that if an engine is set up correctly, I would expect them to be a nice Orange to Brown colour.

Would this be a correct assumtion for these motors also?

 

I noticed that there are 2 different makes fitted, will this be ok?

 

Should I also re gap them? if so what would be the correct gap? (1992 uk manual tt)

Thanks in advance guy's.

 

Dave.

the colour u have there is slight Over fuel but nothing to much to worry about

and yes you should have all the same plugs

looks like you've gotta mix of 5b and 6b they should all be 6b's these plugs pfr6b-c or something along those lines were made by ngk specifically for the z32 vg30de/tt the turbo ones require the 6b the non turbo the 6. Now these are expensive about 50/60 quid a set, however noz has been putting in some copper ones that are much cheaper and he advises highly, you will quickly find that o the search function. As for the colour yeah they look pretty normal tbh, its when they are black or wet that's usually an indication of an issue.

http://www.google.co.uk/imgres?imgurl=http://modernvespa.com/pix/uploads/spark_plug_colour_810.jpg&imgrefurl=http://modernvespa.com/forum/wiki-2-stroke-carburetor-set-up-technique&h=400&w=400&sz=90&tbnid=PS4jrlt_CPdMCM:&tbnh=93&tbnw=93&prev=/search%3Fq%3Dspark%2Bplug%2Bcolour%2Bdiagnosis%26tbm%3Disch%26tbo%3Du&zoom=1&q=spark+plug+colour+diagnosis&usg=__f7Gl7jVjQR53rZsf1-ww5pbXkQY=&docid=3-XzSdTySwWyWM&sa=X&ei=aU2jUePTBseg0wWYg4DQBw&ved=0CEoQ9QEwBA&dur=108

that link should help you to see whats normal.

Cheers guy's :thumbup1:

 

It seems like it's one expence after another! :lol: