441 needle position

When it comes to serviceable items like needles and needle jets, my mantra is: if in doubt, renew.

The potential time lost in chasing your tail trying to eradicate abnormalities caused by such items being worn is simply not worth it.

If I was a pro working on someone else’s bike with unknown history, I’d be even more strict on this. You’d either pay for the stuff I say or take your POS / P&J (delete as appropriate) and waste your own time f*cking about with it !!

Perhaps that’s why I don’t work in a customer facing role …?!
 
Fast Eddie said:
When it comes to serviceable items like needles and needle jets, my mantra is: if in doubt, renew.

The potential time lost in chasing your tail trying to eradicate abnormalities caused by such items being worn is simply not worth it.

If I was a pro working on someone else’s bike with unknown history, I’d be even more strict on this. You’d either pay for the stuff I say or take your POS / P&J (delete as appropriate) and waste your own time f*cking about with it !!

Perhaps that’s why I don’t work in a customer facing role …?!
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Apart from the fact this was covered in posts 2 and 3😁
With the poster replying it's all new stuff
 
seattle##gs said:
How does it get oil on the left side?
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The head to barrel joint has two oil drain holes on the left that continue down to the barrel to crankcase joint, they are small holes and can leak from both joints. When it leaks the air flow and turbulence can push it into the oddest places but most likely on the left. First fix is to retorque the head, next is to removed head and barrel and rebuild with new gaskets, reannealed head gasket and better sealant plus some prayers to the gods of Armoury Lane.
 
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hhh said:
Yes of course, but it's sometimes hard to know when that is. Plug gauges are not adequate since the jet wears oval. A gravity flow test might be the only reliable way, but just a percent can be significant, so it might be hard to get enough resolution.
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I’ve never heard of anyone doing a flow test on a needle jet. You would have to do it with the parallel part of the needle in the metering collar of the jet. You would also have to have already done the test on new parts, so you can compare.
 
Triton Thrasher said:
I’ve never heard of anyone doing a flow test on a needle jet. You would have to do it with the parallel part of the needle in the metering collar of the jet. You would also have to have already done the test on new parts, so you can compare.
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I gage pin, held up to any light source will instantly show any obround profile to the hole. Chuck it over your shoulder, or not.
30 seconds.
Less time than typing about it. 😎🏁🍻
 
kommando said:
The head to barrel joint has two oil drain holes on the left that continue down to the barrel to crankcase joint, they are small holes and can leak from both joints. When it leaks the air flow and turbulence can push it into the oddest places but most likely on the left. First fix is to retorque the head, next is to removed head and barrel and rebuild with new gaskets, reannealed head gasket and better sealant plus some prayers to the gods of Armoury Lane.
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GRRRRRRR.
 
kommando said:
The head to barrel joint has two oil drain holes on the left that continue down to the barrel to crankcase joint, they are small holes and can leak from both joints. When it leaks the air flow and turbulence can push it into the oddest places but most likely on the left. First fix is to retorque the head, next is to removed head and barrel and rebuild with new gaskets, reannealed head gasket and better sealant plus some prayers to the gods of Armoury Lane.
Click to expand...
Sounds like a potential application for the .005” copper wire as demonstrated by Jim Schmidt ?
 
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