Why are my plugs all different colours?
- Thread starter IBLOWN
- Start date
Your best solution here to to go to Dyno shop and have the shop sniff the bike, to see if you are running rich!
Now the way you have the plug in your hand, is the the way they came out, 1 thru 4?
If it is, the 2 middle ones will run richer than cylinders 1 and 4!
Now the way you have the plug in your hand, is the the way they came out, 1 thru 4?
If it is, the 2 middle ones will run richer than cylinders 1 and 4!
Australian bike.
Yes, the plugs in my hand are in the same orientation as the bike in the background.
Checked vacuum lines. All are well.
Slip-ons only.
proud dad
Registered
Does it have a oxygen sensor like the euro models (02 and newer) just something else to look at
Yes, 2 long 2 short.
No o2 sensors.
Then back to my first recommendation, needs to be sniffed on a dyno, i true think that the bike is just really rich!
But i have a Dyno, at my buddies shop for my use all the time!
But i have a Dyno, at my buddies shop for my use all the time!
Haha, always handy to have!
Its definately running rich across the board. No doubt. Im just worried about the 1 plug being blacker than the rest. Im also worried that as the months went on the smell and milage has got worse.
Its actually booked in for a PC V in the next few weeks but wanted to sort out this problem first.
It definately has a problem if the richness is getting worse over time. Tuning would be a waste of time until its fixed. The tune will just go out of whack again.
I checked the TPS.
Im going to check fuel pressure today.
If the CTS was bad the FI light would come on wouldnt it?
Gixx1300R
Registered
Yes that is correct but I pulled one years ago that was very corroded and never sent a code, you should also look at getting the same size velocity stacks, even on a stock Busa the exhaust temps are varied between 1-4 and 2-3 when running stock stacks
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