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MKII engine ID 27 Oct 2021 18:12 #857125

GregZ Topic Author Offline Sustaining Member Posts: 647 Thank you received: 88	Any sure way to ID a MKII engine or just the cases more specifically 1980 mkII cases. I did a search and found info on the extra strengthening rib behind oil filler. Any other sure signs. This engine shown falls within the number range Attachments:
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MKII engine ID 28 Oct 2021 02:43 #857130

zed1015
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Apart from the engine numbers and strenghtening rib the main difference of the MK2/ST cases is the trans cover bolt pattern which is different and that there are two location bosses for the gear selector.
One position is for use with the chain drive MK2 and the other for the shaft drive ST.

AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
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Last edit: by zed1015.

MKII engine ID 28 Oct 2021 04:43 #857131

hardrockminer Offline Sustaining Member Posts: 2940 Thank you received: 1040	The MK2 engine has 32 teeth on the cam sprockets. Pull the valve cover and count. Also, does the head contain ports for engine vapours? I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.
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MKII engine ID 28 Oct 2021 09:01 #857138

Dragbike_Mike
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wrote:
Apart from the engine numbers and strenghtening rib the main difference of the MK2/ST cases is the trans cover bolt pattern which is different

Agree with zed1015. And here's a pic showing the difference in the trans covers. The MkII is on the right. Note how the bottom edge dips down whereas the early KZ cover has a straight edge. Hope this helps.

Mike

Presently - 1980 KZ1000B4 LTD w/mild ported head, Megacycle cams, 1015cc Wiseco, Falicon Supercrank, R&D undercut trans
In a former life - KZ-based dragbike - CrMo car tire chassis, 1395cc, Hahn Racecraft turbo system, VP C16, Orient Express 3-spd auto, 7.80's @ 165-170.

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