Mikuni Flatslides Bell crank wheel

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Mikuni Flatslides Bell crank wheel

14 Mar 2023 18:03
#881523
I am looking for recomendations for someone to replace a bell crank wheel on a brand new set of Mikuni 34 Flatslides, Carbs have less than 5 miles on them and I noticed after first ride. I have the brand new part supplied by Mikuni, I suspect a bad cast on the original. Carbs have been drained of fuel. Unfortunately no one local to me can do it. Would prefer your recomendation and someone you have used before. Appreciate the help in advance. Thanks, Joe

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Re: Mikuni Flatslides Bell crank wheel

14 Mar 2023 18:57
#881524
Any pics of the bad bell crank wheel would help?
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Re: Mikuni Flatslides Bell crank wheel

15 Mar 2023 05:00
#881536
Here is a picture of the new one. Carbs are still on bike. 

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Re: Mikuni Flatslides Bell crank wheel

15 Mar 2023 05:02
#881537
The crack is right where the throttle cable attaches to position two. If I take carbs off bike I will try to get a picture. Thanks.

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Re: Mikuni Flatslides Bell crank wheel

15 Mar 2023 09:35
#881550
You need a thin pin drift punch to remove the small roll pin. 

 
 
 
 
 
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Re: Mikuni Flatslides Bell crank wheel

17 Mar 2023 15:46 - 17 Mar 2023 15:48
#881652
There is also a roll pin on the throttle return spring holder.

I can't give any recommendations on people who could replace that bell crank for you. The only place that comes to mind is W.G. Carbs - Never used them as I do all my own carb work.

Not sure why you could not do it on your own? The throttle shaft once free of all the bolts, and roll pins, just slides out the side of the carb body (rubber cap on the return spring end) you don't have to take the carbs off the mount rails to do it. You don't even need to take the slides out of the bodies.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 17 Mar 2023 15:48 by Injected.
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Re: Mikuni Flatslides Bell crank wheel

18 Mar 2023 15:15
#881716
I probably will end up taking them apart myself. I was just thinking it would be easier to have them done by a pro that has worked on them before. Espiecially since they are brand new. I do have a couple other non motorcycle projects going on at the moment. As soon as they are done I will handle the carbs. Thanks for the help and I will keep you updated.

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Re: Mikuni Flatslides Bell crank wheel

18 Mar 2023 15:32
#881719
I have a set on RS34’s on the bench. I looked them over. Not a difficult job. I can offer up help if needed. 
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Re: Mikuni Flatslides Bell crank wheel

18 Mar 2023 20:45
#881741
If they are brand new and have a casting flaw, that should be a warranty job.
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Re: Mikuni Flatslides Bell crank wheel

19 Mar 2023 09:58
#881777
9 out of 10 times companys like Mikuni will claim mechanical error vs a bad cast. Ive been down that road before. It was easier to order the bell crank and have it repaired.In fact I remember a time Larry Cavanaugh had installed a brand new set of 1075 wiseco pistons on his personal bike. He promptly blew one up. Wiseco told him it was a bad install and to rub rocks. Can you imagine telling a renowed builder that? I remember cause I had a set and gave them to him so he could get his bike back together before winter hit. We ended up becoming great friends after that. He actually did the head on my 1327.

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Re: Mikuni Flatslides Bell crank wheel

27 Mar 2023 14:11
#882087
joe
 if you want to ship to Maryland I have had many sets of Mikuni Flatslides apart shoot me a PM if you do not want to tackle yourself

Barry
1984 750 Turbo

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Re: Mikuni Flatslides Bell crank wheel

27 Mar 2023 14:52
#882088
joe
 if you want to ship to Maryland I have had many sets of Mikuni Flatslides apart shoot me a PM if you do not want to tackle yourself

Barry
PM doesn't work but I can put you in touch by email if you are both in agreement

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