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Okay I have been looking and searching all over for the past few days I have a few questions since I cant seem to find the answers...... Okay I have a 1980 KZ750 H1 LTD..... I am wanting a Kerker 4 into 1 Exhaust for it I have found it for other models bigger motor bikes but none specified for the 1980 KZ so if someone knows if one of the others will fit or know where to get a kerker for my bike that would be awsome!!!!!! Another question Will I have to rejet my carbs if I buy this exhaust? If so does anyone know which jets and what size I am pushing it with my wife on even spending the money to get the new exhaust and I would probably really be in the doghouse if I bought several jets to find the right jetting for it...... I am hoping that I can just get away with installing the kerker and get down the road...... But with my luck prob not...... Any help would be wonderful......

The ones for the KZ 650 will also fit your bike;) . But you probally will have to make a small bracket for the mounting tab to attach to the rear foot peg. As far as jetting goes, i would get the exhaust on the bike first and see how it runs with the current jets;) . I know on my kz 650, i put on a 4 into 1 vance and hines to replace the stock pipes, and never touched the jetting, and it runs spot on.

So the 650 Kerker will fit on the 750 for sure? I really just dont want to order the wrong one and have to spend more money on shipping My fiance would be pretty irritated....... I feel like i have hit the jackpot just gettin her to let me get the exhaust.... LOL

Yup, it will fit;)

Good deal!!!! Now another question should I get the performance baffles?

If you get the performance baffles you'll more than likely have to rejet.

Okay thanks guys you have been very helpful!!!!!!I should probably start a new thread but I just put a manual cam chain tensioner on my bike and i have been reading up on how to adjust it but how do you know if the crank is turned to the point where the slack is at the tensioner?

Another question the tab that I will have to make will it just be an extension of the tab tht is already there or will I have to weld something on or how will that work?

yup, it will only be an extension of the tab already welded on the can.

Here's an example of a diy extension, which also employs a small rubber motor mount to isolate vibration from the frame.

Kerker on KZ900-B1 LTD

Good Luck!

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And another example.

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Cool thanks! Hey patton what do you mean when you say had local muffler shop do the quickie expansion inside muffler for perfect snug fit over header?