RZ500N rebuild

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tacky1
Posts: 1248
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Location: Bay Area. CA.

Re: RZ500N rebuild

#16 Post by tacky1 » Thu Sep 03, 2020 10:33 am

Redline Junkie wrote: Thu Sep 03, 2020 9:11 am Well this sucks, I thought I was going to be OK with Gus's Cranks but now I don't know if I should by a set? FFS
You should be fine with the cranks, They still work, you just need to mod the case a little...
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1989 VFR750R RC30
1984 GPZ750 Turbo

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busa1300
Posts: 283
Joined: Sat Feb 01, 2014 11:45 am
Location: N Indiana

Re: RZ500N rebuild

#17 Post by busa1300 » Thu Sep 03, 2020 1:23 pm

Nothing wrong with sending your good used cranks out to get rebuilt....that is what I preferred.
Genuine Yamaha seals and new KOYO bearings and the cranks are as new.
73 TM/TS400
78 GS1000E
80 KD80
82 Katana
84 RZ350
84 RZV500R
86 GSXR1100
86 1100 sportster
88 FZR1000
89 RGV250 VJ21 SP
90 RGV250 VJ22 SP
91 TZR250 3XV2 SP
96 RGV250 VJ23 SP
99 RS250
02 Hayabusa
16 KTM 390 Duke
17 KTM 1290 SDGT
21 Aprilia RSV4 1100

Redline Junkie
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Re: RZ500N rebuild

#18 Post by Redline Junkie » Thu Sep 03, 2020 1:30 pm

I may go the rebuild route if I could find the parts and someone skilled enough to do it right. Anyone know of a good crank guy in Canada?
1985 RZ500 52X needing crank, parked for 11 years. Original condition!
1985 RZ350R F1 75% built
1986 RZ350R F2 Runner
1987 RZ350R F2 basket case

Redline Junkie
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Re: RZ500N rebuild

#19 Post by Redline Junkie » Thu Sep 03, 2020 1:44 pm

busa1300 wrote: Thu Sep 03, 2020 1:23 pm Nothing wrong with sending your good used cranks out to get rebuilt....that is what I preferred.
Genuine Yamaha seals and new KOYO bearings and the cranks are as new.
Can you tell me the Koyo bearing numbers for the crank?
1985 RZ500 52X needing crank, parked for 11 years. Original condition!
1985 RZ350R F1 75% built
1986 RZ350R F2 Runner
1987 RZ350R F2 basket case

silverstrom
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Re: RZ500N rebuild

#20 Post by silverstrom » Thu Sep 03, 2020 3:08 pm

tacky1 wrote: Thu Sep 03, 2020 10:33 am
You should be fine with the cranks, They still work, you just need to mod the case a little...
For many it defeats the purpose of buying them. People want ready to go cranks that work without having to modify the engine in any way. It really isn't asking much, is it? We are sold cranks at a high price and told they are perfect and ready to install, except for some they are not. I specifically asked Gus about this problem in a post before buying mine and he denied there was a problem.

This all goes back to the problem Yambits had with incorrectly sized rods. I asked them about it and they told me the problem did exist but had been resolved and the rods came from Taiwan, which is where the cranks are being made. Yambits purged the defective rods from their supply chain, but they are turning up in Gus's cranks, and those cranks are sold by multiple sellers as well as eBay and Amazon.

People don't mind paying for new cranks. They mind getting less than what they paid for and being fed lies about the poor fitment issue.

I won't be buying more from Gus. I'll rebuild the dozen cranks I have here. I suggest others do the same.

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tacky1
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Location: Bay Area. CA.

Re: RZ500N rebuild

#21 Post by tacky1 » Thu Sep 03, 2020 5:06 pm

silverstrom wrote: Thu Sep 03, 2020 3:08 pm
tacky1 wrote: Thu Sep 03, 2020 10:33 am
You should be fine with the cranks, They still work, you just need to mod the case a little...
For many it defeats the purpose of buying them. People want ready to go cranks that work without having to modify the engine in any way. It really isn't asking much, is it? We are sold cranks at a high price and told they are perfect and ready to install, except for some they are not. I specifically asked Gus about this problem in a post before buying mine and he denied there was a problem.

This all goes back to the problem Yambits had with incorrectly sized rods. I asked them about it and they told me the problem did exist but had been resolved and the rods came from Taiwan, which is where the cranks are being made. Yambits purged the defective rods from their supply chain, but they are turning up in Gus's cranks, and those cranks are sold by multiple sellers as well as eBay and Amazon.

People don't mind paying for new cranks. They mind getting less than what they paid for and being fed lies about the poor fitment issue.

I won't be buying more from Gus. I'll rebuild the dozen cranks I have here. I suggest others do the same.
I absolutely agree John, They should be correct in the first place, I have a spare set left out of the batch I bought, Hopefully ill never need them, BUT, Its too late to return them :P
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1989 VFR750R RC30
1984 GPZ750 Turbo

Spag
Posts: 61
Joined: Mon Dec 11, 2017 12:23 am
Location: Central Alberta, Canada

Re: RZ500N rebuild

#22 Post by Spag » Thu Sep 03, 2020 6:19 pm

I’ll not be using Gus’s cranks again as The original cranks will be rebuilt by Bill Wilson and put in my RZV engine and I also have a spare set of OEM cranks as backup 👍🏻

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JonW
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Re: RZ500N rebuild

#23 Post by JonW » Thu Sep 03, 2020 8:16 pm

These are my thoughts too John, I have perfectly usable cranks (the engine ran fine before stripping) that I could put new bearings/seal in locally but I bought Gus' cranks as I read good things about them on here and figured it was a nice easy drop-in solution rather than deal with a crank rebuilder. '

As you so perfectly put, this is the reality: People don't mind paying for new cranks. They mind getting less than what they paid for and being fed lies about the poor fitment issue.

I dealt with Gus with a 350 crank almost a decade back and it wasnt exactly what anyone would call 'easy', I figured that was a one off issue, seems not.
www.2smoked.com

80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD250LC '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

Like Watches? www.PloProf.com & www.DeskDivers.com

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busa1300
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Location: N Indiana

Re: RZ500N rebuild

#24 Post by busa1300 » Thu Sep 03, 2020 9:41 pm

Redline Junkie wrote: Thu Sep 03, 2020 1:30 pm I may go the rebuild route if I could find the parts and someone skilled enough to do it right. Anyone know of a good crank guy in Canada?
https://www.billbune.com/services.html

viewtopic.php?p=97755#p97755
73 TM/TS400
78 GS1000E
80 KD80
82 Katana
84 RZ350
84 RZV500R
86 GSXR1100
86 1100 sportster
88 FZR1000
89 RGV250 VJ21 SP
90 RGV250 VJ22 SP
91 TZR250 3XV2 SP
96 RGV250 VJ23 SP
99 RS250
02 Hayabusa
16 KTM 390 Duke
17 KTM 1290 SDGT
21 Aprilia RSV4 1100

ditomagico
Posts: 32
Joined: Wed Aug 12, 2020 10:25 am

Re: RZ500N rebuild

#25 Post by ditomagico » Fri Sep 04, 2020 6:00 am

Have a set that I got with the bike I purchased.

What's their value? and how can I check if they are not good and fix them?

thanks

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tacky1
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Location: Bay Area. CA.

Re: RZ500N rebuild

#26 Post by tacky1 » Fri Sep 04, 2020 10:35 am

ditomagico wrote: Fri Sep 04, 2020 6:00 am Have a set that I got with the bike I purchased.

What's their value? and how can I check if they are not good and fix them?

thanks
Best way is to fit them in the cases, fit the pistons and cylinders and turn the engine over, That'll tell you if you have problems.
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1989 VFR750R RC30
1984 GPZ750 Turbo

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ns86
Posts: 833
Joined: Sat Oct 30, 2010 9:46 pm
Location: ontario canada

Re: RZ500N rebuild

#27 Post by ns86 » Fri Sep 04, 2020 8:47 pm

Redline Junkie: Cranks in my ATR RGV500 are done at GBP in Toronto.

http://www.gordbushperformance.com
1985 RZ500
1986 RG500
1986 RG500 C
1992 RGV500 WW ATR
1992 RGV500 LS
1985 NS500 Spencer p
1989 TZR500 Biaggi p
1984 RZV500 Rainey p
1994 NSR250sp R
1983 NS250 p
1987 RG250 WW p
1983 RG250 p
1988 YSR50 p

Redline Junkie
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Re: RZ500N rebuild

#28 Post by Redline Junkie » Sat Sep 05, 2020 7:37 am

ns86 wrote: Fri Sep 04, 2020 8:47 pm Redline Junkie: Cranks in my ATR RGV500 are done at GBP in Toronto.

http://www.gordbushperformance.com
Thanks
1985 RZ500 52X needing crank, parked for 11 years. Original condition!
1985 RZ350R F1 75% built
1986 RZ350R F2 Runner
1987 RZ350R F2 basket case

Redline Junkie
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Location: Halifax Nova Scotia Canada

Re: RZ500N rebuild

#29 Post by Redline Junkie » Sat Sep 05, 2020 8:23 am

busa1300 wrote: Thu Sep 03, 2020 9:41 pm
Redline Junkie wrote: Thu Sep 03, 2020 1:30 pm I may go the rebuild route if I could find the parts and someone skilled enough to do it right. Anyone know of a good crank guy in Canada?
https://www.billbune.com/services.html

viewtopic.php?p=97755#p97755
Thanks
1985 RZ500 52X needing crank, parked for 11 years. Original condition!
1985 RZ350R F1 75% built
1986 RZ350R F2 Runner
1987 RZ350R F2 basket case

silverstrom
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Re: RZ500N rebuild

#30 Post by silverstrom » Sat Sep 05, 2020 1:01 pm

CV Tech in Quebec, as well. Talk to your local Yamaha dealer to see who does their crank rebuilds.

I paid $1300 Cdn for my Gus cranks. Still need to check them to make sure they have good rod big end diameters.

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