leaded fuel residue?

[BRYNO426]

whats up guys? i want to see if any of you have experienced a residue in the exhaust when using leaded fuel i am currently running VP MR2 fuel the scoot runs really crisp but i notice a greyish residue in the exhaust any ideas?

[EK314]

What you are seeing is probably a slight carbon buildup which is normal. The reason it is gray is because of the lead in the race fuel. Unless the biuld up is really bad, no worries!!

Ernie

[Psycho426]

I haven’t tried normal 93 leaded in my bike, I’ve been using unleaded ever since I got the bike.

Will the bike run better on leaded (normal not race gas)?

If so will I have to change my jetting if I want to try it?

[jaybird67k]

The grey build up is lead deposits, no big deal, just change your plug more often because it builds up on the plug really bad.

I just rebuilt mine after a year of running leaded race and was curious to see if the piston or combustion chamber had alot of build up, but it did not.

Later, Jason

[EK314]

Originally posted by Psycho426:

I haven’t tried normal 93 leaded in my bike

Psycho,

You have 93 octane leaded??? I am jealous!! Leaded fuel is a good thing. The lead helps to lubricate/buffer the valve train. If the leaded gas is the same octane as the unleaded you are using you should not have to re-jet.

Ernie

[Psycho426]

Ernie - Yep, we are lucky aren't we(we don't have such strict pollution laws yet). We even have a fuel that is called 'Dual Fuel'(also 93), I'm not sure how it works but it's guaranteed for use in <font color="Navy">both leaded and unleaded petrol engines, neat isn't it ?

Thanx, I'll give the leaded a shot the weekend

[ December 12, 2001: Message edited by: Psycho426 ]

[Boit]

I've also been using MR2 fuel with the slighty ashy grey residue. The throttle response with this fuel and proper jetting is phenomenal. C-12 worked well also but doesn't give the revability that MR2 does. At least that was my experience.

[EK314]

Originally posted by Boit:

I've also been using MR2 fuel

Boit,

What are they getting for a gallon of MR2 in La??? I can't find it for less than $9.00 a gallon here in So. Cal. ?

Ernie

[Boit]

Ernie: $8 per gallon for MR2 in 5 gallon sealed pails. The pail makes a dandy pump gas container for the lawn mower once I've used the fuel up.

[BRYNO426]

Thanks for the input i just needed to easy my mind. and kudos to BK I did the mod a few nights ago and OH MY GOD!that has to be the best $.75 cents I have ever spent. ?