Yamaha RZV500R <PULSAR> engine project
Moderator: rztom
Re: Yamaha RZV500R <PULSAR> engine project
O-rings came at last. Now I can finish heads drawings.
Re: Yamaha RZV500R <PULSAR> engine project
Stock 100mm and beautiful Hot Rods 115mm.
Beautiful bottom honed surface ))))
Center webs from Yambits. Someone here asked if quality is good enough for such a low price?! No. While grinding and polishing pin got -0.01 (21.99) and because of not good enough balancing on the equipment while manufacturing pin had oval shape. You could see on pics. Else more 0.02 and pins are round shape )))))
The only way to get a gap 0.02 is to make new needles. Didn't find 11.8mm (length) needles, so regrind from 13.85mm. Needle cage should be reassembled and milled to fit new needles.
Beautiful bottom honed surface ))))
Center webs from Yambits. Someone here asked if quality is good enough for such a low price?! No. While grinding and polishing pin got -0.01 (21.99) and because of not good enough balancing on the equipment while manufacturing pin had oval shape. You could see on pics. Else more 0.02 and pins are round shape )))))
The only way to get a gap 0.02 is to make new needles. Didn't find 11.8mm (length) needles, so regrind from 13.85mm. Needle cage should be reassembled and milled to fit new needles.
Re: Yamaha RZV500R <PULSAR> engine project
New long studs to centered both interface plates and cylinders.
Modified PW rack.
SS exhaust springs.
Modified PW rack.
SS exhaust springs.
Re: Yamaha RZV500R <PULSAR> engine project
How impressive! Thank you for the details and great photos, and good luck as you continue with this fascinating project.
Re: Yamaha RZV500R <PULSAR> engine project
From my point of view fastest and easiest way to set 180 deg for my cranks.
Side bottom conrod clearance was changed to 0.75mm for better lubrication with the cost of dimension between central webs. Labyrinth seal is less in width for 1 mm as well.
Cranks are ready for installation, but can't be installed at a moment. Need your help with dimensions from previous post.
Re: Yamaha RZV500R <PULSAR> engine project
Right, i finally found my spare ones, and measured a couple, and they have identical dimensions (digital vernier)
OD, 35.00mm
Thickness, 14.57mm
Hope this helps!
Re: Yamaha RZV500R <PULSAR> engine project
Very nice work. Looking forward to hearing her run.
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
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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Re: Yamaha RZV500R <PULSAR> engine project
!!! Serious stuff !!!
Re: Yamaha RZV500R <PULSAR> engine project
Re: Yamaha RZV500R <PULSAR> engine project
Good work, can't wait to see more.
I think .75mm side clearance on rods is good. In mini mx at .5mm they overheat. I'm guessing yours will get run on track.
What did you decide on the exhaust boost to piston pin hole? I don't think 1.5mm will be a problem
I think .75mm side clearance on rods is good. In mini mx at .5mm they overheat. I'm guessing yours will get run on track.
What did you decide on the exhaust boost to piston pin hole? I don't think 1.5mm will be a problem