Piston discoloration difference.

[trickedcarbine]

Check for air leaks, make sure the petcock is flowing good to both carbs, and make sure the needle and seats on both carbs are flowing. Ultimately I'm leaning toward an air leak. 

[justin_smallwood]

Check for air leaks, make sure the petcock is flowing good to both carbs, and make sure the needle and seats on both carbs are flowing. Ultimately I'm leaning toward an air leak. 

I do have a an annoying transmission leak. I'm guessing that would cause an air leak..

In the mean time can u tell me where these two extra o rings go...looks like they have to do with the spark plug but I don't we where...


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[trickedcarbine]

Transmission and crank case are seperate.  Totally different leaks.

 

As far as o ring placement, is that a pro design head? 

[justin_smallwood]

Transmission and crank case are seperate.  Totally different leaks.
 
As far as o ring placement, is that a pro design head? 

Guess that's not my leak then.

And yes it's a pro design.

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[trickedcarbine]

Pretty sure those go in the top plate on the under side.

 

Figure out if there's an air leak. They'll melt motors down. 

[justin_smallwood]

Pretty sure those go in the top plate on the under side.
 
Figure out if there's an air leak. They'll melt motors down. 

I have those already in...these are quite smaller than the ones u are referring to..I won't worry about em...and ok I'll check for the air leak

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[JUSTWANNARACE]

On Thursday, August 03, 2017 at 9:51 AM, justin_smallwood said:

 

Hello...can anyone tell me what you see as far as the difference in piston color means? Left side edge is faded while the right side is jet black...

 

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I would say it's a little lean. But the left side is washed from coolant imo.. look at the front stud, from the timing edge of the cyl to the water jacket is black from exhaust from a blown oring or a cracked oring land in the dome itself causing it to pull water on the intake stroke.. jmo

[JUSTWANNARACE]

On Thursday, August 03, 2017 at 4:25 PM, justin_smallwood said:

 

I do have a an annoying transmission leak. I'm guessing that would cause an air leak..

In the mean time can u tell me where these two extra o rings go...looks like they have to do with the spark plug but I don't we where...


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Those are for the inlet and outlet that you probly did not remove

[sleeper06]

Wanna race is on the rite track , when you install the orings how are you holding them in place while positioning everything 

[justin_smallwood]

Wanna race is on the rite track , when you install the orings how are you holding them in place while positioning everything 

Not for sure what's considered the inner and outlet...and I used some clear rv silicone type stuff around the orings and let it dry over night. Worked well. No issues

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[IceracerX]

Never use silicone, rtv, or any type of 'glue' on o rings. A little Vasoline or even grease will hold the o ring in place.

[justin_smallwood]

Never use silicone, rtv, or any type of 'glue' on o rings. A little Vasoline or even grease will hold the o ring in place.

Thanks for the info...I know that now...I'll make sure to do that the next time..can U tell me why?

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[Tedder]

I really like the spray on CRC white lithium grease for holding the orings.

Once the carrier has dried off they stick in place pretty well.

 

 

[sleeper06]

Inlet n outlet hose barb for coolant lines 

[justin_smallwood]

Inlet n outlet hose barb for coolant lines 

Never knew those took orings...Makes sense though...now if I can find them. Hope I didn't leave them in the head..sitting there..

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