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Help a newbeginner..
- Nessism
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I'm not familiar with those particular carbs but typically the pilot fuel screws on the bottom should be open about 7/8 turn from lightly seated and the pilot air screws, located on the side, should be about double that.
One major issue you may have it jetting. VM24's with a 750 engine is sort of uncharted territory. Only thing I can suggest is to keep experimenting to see what helps and what doesn't. If the stock jetting is a 100 main and you are at 125 it seems to me that you are too rich but I'm not a jetting guy. Typically, when running pods, you need to bump the mains about 4 steps or so. And the pilots should never be bumped more than one size.
If you have the option to install the airbox w/filter and return the jetting to stock I'd start there. You can always move back to pods after you confirm the engine is reliable and well sorted.
Good luck
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- gordone
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Nessism wrote: If the idle is creeping up when hot you got a lean condition, possibly leaking air into the rubber boots.
I'm not familiar with those particular carbs but typically the pilot fuel screws on the bottom should be open about 7/8 turn from lightly seated and the pilot air screws, located on the side, should be about double that.
One major issue you may have it jetting. VM24's with a 750 engine is sort of uncharted territory. Only thing I can suggest is to keep experimenting to see what helps and what doesn't. If the stock jetting is a 100 main and you are at 125 it seems to me that you are too rich but I'm not a jetting guy. Typically, when running pods, you need to bump the mains about 4 steps or so. And the pilots should never be bumped more than one size.
If you have the option to install the airbox w/filter and return the jetting to stock I'd start there. You can always move back to pods after you confirm the engine is reliable and well sorted.
Good luck
I got a advise from a person on Facebook (hehe), he said I could try with some "start gas", spraying around the inlet and the engine should not react on it.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- Conspiracy
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gordone wrote:
I got a advise from a person on Facebook (hehe), he said I could try with some "start gas", spraying around the inlet and the engine should not react on it.
I believe he was telling you how to check for vacuum leaks around your intake. Spraying fluid (carb cleaner, brake cleaner, wd-40) around the boots will temporarily block the air leak, which may cause the RPM to drop. If the RPM drops while you're spraying you know you have a leak in the connection point between carbs and engine. A leak there will allow air to be pulled past the carb into the engine creating a lean condition. Lean condition = high RPM
Novice rider
1976 KZ900
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- gordone
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Conspiracy wrote:
gordone wrote:
I got a advise from a person on Facebook (hehe), he said I could try with some "start gas", spraying around the inlet and the engine should not react on it.
I believe he was telling you how to check for vacuum leaks around your intake. Spraying fluid (carb cleaner, brake cleaner, wd-40) around the boots will temporarily block the air leak, which may cause the RPM to drop. If the RPM drops while you're spraying you know you have a leak in the connection point between carbs and engine. A leak there will allow air to be pulled past the carb into the engine creating a lean condition. Lean condition = high RPM
I`m quite sure he thinked about the gas will increase RPM since it`s start gas, the vaccum will suck in... ?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).
Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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- KZB2 650
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1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
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