GPZ 750 Air Cleaner Assembly

Is there supposed to be any fittings or spacers in the air cleaner box w/ the air filter?

PFC FNG wrote:

Is there supposed to be any fittings or spacers in the air cleaner box w/ the air filter?

Here's what Kawasaki.com shows --

[Click on image for larger view]





11009 11009-1330 GASKET,HOLDER 1 1 1

11010 11010-1165 FILTER-ASSY-AIR 1 1 1 US US

11010A 11010-1169 FILTER-ASSY-AIR (Canada) 1 1 1 CN

11010B 11010-1219 FILTER-ASSY-AIR 1 1 CA

11012 11012-1245 CAP,AIR FILTER CASE 1 1 1

11013 11013-1101 ELEMENT-AIR FILTER 1 1 1

13091 11033-006 HOLDER,INLET PIPE 1 1 1

13091A 13091-1147 HOLDER,ELEMENT 1 1 1

13091B 13091-1151 HOLDER,ELEMENT 1 1 1

14073 14073-1032 INLET DUCT 4 4 4

16126 16126-1005 VALVE ASSY,AIR SWITCH 1 1 1 US CA,US

39162 39162-1003 SILENCER 1 1 1 US CA,US

92005 92005-1017 FITTING,TUBE 1 1 1 US CA,US

92022 92022-240 WASHER-PLAIN,7MM 1 1 1

92037 92037-072 CLAMP-PIPE 6 6 6 US CA,US

92037A 92037-1076 CLAMP 2 2 2 US CA,US

92037B 92037-213 CLAMP,BREATHER TUBE 4 4 4 US CA,US

92059 92059-1162 TUBE,VACUUM,LONG 2 2 2 US CA,US

92059A 92059-1043 TUBE,4X9X290 1 1 1 US CA,US

92059B 92059-1065 TUBE 1 1 1 US CA,US

92059C 92059-1066 TUBE 1 1 1 US CA,US

92059D 92059-1138 TUBE,14X20X290 1 1 1 US CA,US

92059E 92059-1263 TUBE,L=150.5 1 1 1

92071 92071-1027 GROMMET 1 1 1

92071A 92071-1112 GROMMET,AIR FILTER 1 1 CA

92081 92081-1457 SPRING,COIL,BLACK 4 4 4

130 130B0614 BOLT 1 1 1

702 702A06340 TUBE-RUBBER,6X340 1 1 1

Do you think an air filter would function without 13091 and 11009?

PFC FNG wrote:

Do you think an air filter would function without 13091 and 11009?

13091 - inlet pipe holder

11009 - gasket holder

Am unfamiliar with this intake system.

The general rule is that all incoming air should pass through the filter element before reaching the carbs. Otherwise there's an "air intake leak." Some models tolerate this very well without noticable difference in performance, while performance in other models may suffer because of an intake air leak.

But immediate performance considerations aside, an "air intake leak" allows foreign matter in non-filtered air to enter into the carbs, as well as pass on into the combustion chamber to accelerate wear of the rings, pistons and cylinder bore.

Should be able to study the existing system to determine whether the missing parts would allow any air into the carbs without first passing through the filter element.

If had to guess, would suspicion that absence of the mentioned parts is allowing unfiltered air to reach the carbs. In that event, perhaps some ingenuity could be used to fabricate workable substitutes or an alternate fitment.

For example, sometimes a piece cut from a standard household a/c filter may be inserted to temporarily replace the missing oem part and catch at least some of the airborne matter.

Good Luck!

I think this motor will tolerate an air leak rather well. The PO ran it without an air filter for over 6 months.