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VM30's on an R5, throttle options?

Started by idr5c, August 09, 2020, 11:27:09 AM

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idr5c

I've run into a snag on my racebike prep, hoping the brain trust can :help:

I'm switching to a ported R5 top end and VM30's (large frame type) and I realized last night that the stock throttle setup doesn't seem to have the needed adjustment/travel to pull these carbs. I'm going to disassemble the junction block today and see if I can get more travel.

Can the stock R5 throttle setup work with these carbs? If not, I'll need to convince John to 2-day ship one of these   :dawg:

https://www.economycycle.com/shop/yamaha-rz-350/frame-related-yamaha-rz-350/cables-yamaha-rz-350/vm30-38-throttle-and-cable-kit-not-for-tm/
Stephen Phillips
WMRRA #494
http://www.wmrra.com

Czakky

Chuck made my R5 throttle work with TM32s, honestly I never asked how he did it.

Sorry that's all I got

bitzz

I once got a DNS because I was putzing with that cable splitter. ONCE.

Now all my twins have a Tomiselli Daytona throttle  with THREE cables. One cable is a spare that never gets lost

Economy Cycle John

Quote from: idr5c on August 09, 2020, 11:27:09 AM
I've run into a snag on my racebike prep, hoping the brain trust can :help:

I'm switching to a ported R5 top end and VM30's (large frame type) and I realized last night that the stock throttle setup doesn't seem to have the needed adjustment/travel to pull these carbs. I'm going to disassemble the junction block today and see if I can get more travel.

Can the stock R5 throttle setup work with these carbs? If not, I'll need to convince John to 2-day ship one of these   :dawg:

https://www.economycycle.com/shop/yamaha-rz-350/frame-related-yamaha-rz-350/cables-yamaha-rz-350/vm30-38-throttle-and-cable-kit-not-for-tm/

I do have a cable that will work with the stock throttle with or without the pump, not on the website, just give us a call.
www.EconomyCycle.com - RD/RZ Parts, Services, Tools, Accessories & Swag

idr5c

Thanks John, I'll call today to get the right cables on order.

For this weekend I figured out that I could use a RD350 junction block and cables, but then they were too long so I machined a spacer to take up the slack at the junction end. Not the most elegant solution but it will work until the proper cables arrive.

Thanks everyone! :clap:
Stephen Phillips
WMRRA #494
http://www.wmrra.com

quocle603

I had to fab my own throttle cable for my OKO 28mm carbs. I just used some spare cables and soldered the ends. It took forever because I had to measure twice and cut once multiple times to make it perfect but I am so glad that I did it because of stock vm28 were way too loose and it messed my 3 way split tension.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC