Reduce Pod Air Flow vs Rejetting

[Nessism]

The carbs do hang unsupported when using pods, but that typically doesn't cause issues as long as the boots are fresh.

[Darin Jordan]

Sorry, but that's not correct... 1.65mm = 0.0649"

A DJ150 = 0.064" = 1.6256mm (1.6mm)
A DJ155 ~= 0.0665" = 1.6891mm (1.7mm)

A DJ165 ~= 0.0715" = 1.8161mm (1.8mm)

So, a 1.65mm = 0.6496 = 0.065" = 1.651mm, so between the DJ150 and the DJ155, hence, ~ 152.5.

I own jet drills from 1.6mm through 1.8mm, and verified the sizes prior to drilling. All coincide with the cross-reference charts.

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Agemax, I owe you an apology based on the information we exchanged yesterday. You got me thinking about things, and so I went home to double check and, though I'm confused as to how my physical measurements were so off, YOU WERE CORRECT! 1.65mm was chosen based on that Jet Comparison Chart, which seems to get referred to here and on other sites a LOT, but it's physical diameter measurements are INCORRECT in regards to the equivalent Dynojet offerings.

As you stated, the DJ150 = 1.50mm, which is 0.059", not 0.064", as the chart shows. Same for the others.

Everything I was calculating was based on that chart, which clearly is incorrect for the DJ sizes. So, you were right... 165s were what I had in there. Would have been a disaster trying to head into the mountains.


DynoJet_Sizes_CORRECTED.JPG

Please forgive my ignorance. I rejetted back to the 155s last night. That, combined with the correct float levels seems to have put the mixture very close.

[Agemax]

Agemax, I owe you an apology based on the information we exchanged yesterday. You got me thinking about things, and so I went home to double check and, though I'm confused as to how my physical measurements were so off, YOU WERE CORRECT! 1.65mm was chosen based on that Jet Comparison Chart, which seems to get referred to here and on other sites a LOT, but it's physical diameter measurements are INCORRECT in regards to the equivalent Dynojet offerings.

As you stated, the DJ150 = 1.50mm, which is 0.059", not 0.064", as the chart shows. Same for the others.

Everything I was calculating was based on that chart, which clearly is incorrect for the DJ sizes. So, you were right... 165s were what I had in there. Would have been a disaster trying to head into the mountains.


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Please forgive my ignorance. I rejetted back to the 155s last night. That, combined with the correct float levels seems to have put the mixture very close.

No worries Darin, just glad you got your bike sorted out finally.

[PardonMe4687]

Not to get this thread sidetracked but this may be pertinent here.

I saw a buddy's 78 KZ 1000 on Sunday and the carb boots to the head were badly cracked. He said they were recently replaced too, which was weird.

Do the carbs bouncing around, without the airbox to support the back side, tend to stress the boots, shortening their life? Maybe you guys that run pods already thought of that and support them somehow.

I hadn't thought of this, but I'm glad you brought it up. I see that Nessism stated that with new boots this isn't an issue. I do have new boots on my bike, but I'd rather be safe than sorry. So I'll probably go ahead and fashion some sort of support for the carbs to ensure the longevity of the boots.