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**SriramEfunds** · 03-24-2012, 03:06 AM

For me the plug looks old, not an issue. The oil smugged on the outer ring is not an issue. Electrode is not clearly visible if it has good rich rust color depicting good AFR. However, the excess oil might hamper in terms of plug fouling. Again, it happens over a period of time. Check and adjust AFR by closing completely to the right (full close) and turn anti-clock wise say 1 1/4 and check. Adjust + or - by degree of turn to set it right. The right amount of oil that would require per litre of petrol is 3% as per company recommendations. Normally pertol bunks do 2% i.e 20ml/1 ltr will not harm either. Oil pump adjustment should normally last atlest 1500kms from 1 litre of 2T.

Originally posted by Dinesh.P View Post

Did you see any oil spit in the spark plug if so change the spark plug and if you are using oil pump for 2T mixing check the oil pump adjustment if mixing directly don't add too much oil.
When you add excess oil the bike will fled in each gear when you red line it.

Newbie will need some guidance and in detail. In future please try to add numbers to your interpretation so that there is no ambiguity.

**aargee** · 03-24-2012, 04:45 AM

Dinesh, SriramEFunds is precise here; Reason?

Originally posted by Dinesh.P View Post

Did you see any oil spit in the spark plug if so change the spark plug

Not required; just clean up on the plug is more than sufficient.

Originally posted by Dinesh.P View Post

When you add excess oil the bike will fled in each gear when you red line it.

You mean flood the carb? ('cause I couldn't understand what FLED means here); this cannot happen; carb flooding is completely a different process altogether; it is now way related to 2T mixture, be it excess or under. Point is, even if mixture is perfect, flooding can occur.

**Dinesh.P** · 03-24-2012, 04:55 AM

Aargee and Sriram I will add in more details when I post next time.

I gave this suggestion because i had a similar problem with my bike it was due to the spark plug and excess oil going through the oil pump.

And also I am not a master like you people....

**aargee** · 03-24-2012, 05:28 AM

i had a similar problem with my bike it was due to the spark plug and excess oil going through the oil pump

Excess of oil will NOT give such issues; trust me, its not even the carb here; I've told him what could be the issue & how to test it. Not sure if he's going to even consider it

I'll tell you what excess of oil will do (in the order of noticeable symptoms)
- Plug becomes too much oily
- Excess oil flows through exhaust
- Finally leaks through head & cylinder

But how much is excess defined? Anything more than 40-50 ml per litre is excess. I used 40 ml during my run-in & still there wasn't any oil leakage through the exhaust.

And also I am not a master like you people....

No need to feel low; go through this forum, all of the 2stroke junkies have made a lot of valuable posts. Spend time by going through them & there by educating yourself.

**yamdoot** · 03-24-2012, 02:05 PM

Oil on plug can be because of various reasons.
Excessive amount of premix.
oilpump pumpin more oil than required.
Timing not perfect or no spark at all leading to unburnt fuel and oil on the plug.

@Aargee, it will not lead to head and cylinder leaking though.

**aargee** · 03-24-2012, 04:10 PM

Originally posted by yamdoot View Post

@Aargee, it will not lead to head and cylinder leaking though.

I'm sure it will not, but that's the worst possibility. The oil wouldn't even reach the gasket, add to that with the excessive carbon deposit, oil leak wouldn't happen. But in due course, if the head is opened up & carbon is cleaned + the gasket not changed...likely to happen right?

**yamdoot** · 03-24-2012, 07:01 PM

Originally posted by aargee View Post

I'm sure it will not, but that's the worst possibility. The oil wouldn't even reach the gasket, add to that with the excessive carbon deposit, oil leak wouldn't happen. But in due course, if the head is opened up & carbon is cleaned + the gasket not changed...likely to happen right?

It is always wise to change the head gasket everytime a head is opened. Once the metal gasket gets compressed, theres no point using it again as it sure is gonna leak.

**aargee** · 03-24-2012, 07:05 PM

^^^ Right; you & I know that; road side mech will not change it for his laziness & thus the leak starts. Trust me...after my rebuild is over, its 17K on ODO, I've spent almost on nothing other than fuel expense!!! Had I got it serviced with damn moronic mechanics, I would've repented for my rebuild!!!

Thread starter - Sry about the OT discussion on your thread.

**vetri11** · 03-26-2012, 01:44 PM

Originally posted by aargee View Post

Get some more closer pics for better analysis like the one shown above.

i have attached other pics that i took

**aargee** · 03-26-2012, 01:52 PM

^^^ My stand remains the same, plug seems to be fine, but you need to clean or change it NOW!!!

If plug or carb is the issue, the bike would show issues right from the time you start & open the throttle. Let's try to take a wrong turn here; post the size of carbs.

Other option is to open & close the tank lid like I said before; choice is yours if you want to try or leave it.

**SriramEfunds** · 03-26-2012, 04:07 PM

@Vetri - Why don't you take a pic of centre electrode? All your picture shows the outer. What about the inner electrode? You'll have to read alot about spark plug and what is it all about.

**vetri11** · 03-29-2012, 05:37 PM

Originally posted by aargee View Post

^^^ My stand remains the same, plug seems to be fine, but you need to clean or change it NOW!!!

I have changed the spark, i've replaced the older one with a new NGK iridium spark plug.

If plug or carb is the issue, the bike would show issues right from the time you start & open the throttle. Let's try to take a wrong turn here; post the size of carbs.

how do i check the size of carb ?

Other option is to open & close the tank lid like I said before; choice is yours if you want to try or leave it.

i did try opening the cap while running for a number of times, there is no difference yet.

But after the change of spark plug the chocking has reduced but not fully. I hav asked my mechanic to check on the carbs. will update it to u soon.

**vetri11** · 03-29-2012, 05:42 PM

Originally posted by SriramEfunds View Post

@Vetri - Why don't you take a pic of centre electrode? All your picture shows the outer. What about the inner electrode? You'll have to read alot about spark plug and what is it all about.

i have attached a better quality picture, Now i have changed the spark plug anyways.

**SriramEfunds** · 03-29-2012, 08:20 PM

Originally posted by vetri11 View Post

i have attached a better quality picture, Now i have changed the spark plug anyways.

Guess too much of oil mix. The spark plug got all smugged. You'll need to adhere to 2%-3% oil per litre. As it is discussed earlier, you'll need to fine tune the AFR.

**vetri11** · 04-03-2012, 11:17 AM

Originally posted by SriramEfunds View Post

Guess too much of oil mix. The spark plug got all smugged. You'll need to adhere to 2%-3% oil per litre. As it is discussed earlier, you'll need to fine tune the AFR.

I hear a noise from my bore, my mechanic asked me add extra 20ml to every litre of petrol. the oil pump is also working fine. i guess i have added extra oil which resulted in leak.

one of my friends mechanic saw my bike and said that the sound can only be arrested by Reboring, but the mechanic who usually services my bike said that a rebore will reduce the pickup very drastically. iam in total confusion

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