Hi guys. I have so time on our hands and cleaned the carbs on my RD350. It's been awhile since I cleaned them. When I started back up it was revving high like a runaway. Found out it is the choke side carb throttle slide that will not sit flat. Right carb is good. I was messing with the cable and lock nut on top but not having much luck. Is there a trick to reset the throttle so it sits flat like it should?
look for burs on the slide and that the aligning pin in the body isnt loose.
Doesn't seem like any burs. When I put the slide in without the cable attached it sits where it should. It seems there is not enough slack in the cable.
ahhh. check at and in the cable splitter then.
When I tighten the cable on the carb I'm getting a good amount of resistance. Almost like it's twisted.
STILL MIGHT BE IN THE SPLITTER. TAKE IT ALL DOWN, GET A GOOD LOOK IN THE CABLE ASSEMBLY. SORRY CAPS
Ok so I checked the splitter. I removed the 2 carb cables to inspect. The one cable end cap stretched and broke from the shield casing which extended the housing therefore making the cable shorter (I hope this sentence made sense). What I ended up doing was switching the cables and it seemed to work. I then had to carb sync because they were all out of wack. Started the bike and it idle perfectly.
Should I invest in new cables anyway? I thought I heard that non oem yamaha cables stink. Is this true?
Quote from: davedogg on May 01, 2020, 10:31:47 AM
Ok so I checked the splitter. I removed the 2 carb cables to inspect. The one cable end cap stretched and broke from the shield casing which extended the housing therefore making the cable shorter (I hope this sentence made sense). What I ended up doing was switching the cables and it seemed to work. I then had to carb sync because they were all out of wack. Started the bike and it idle perfectly.
Should I invest in new cables anyway? I thought I heard that non oem yamaha cables stink. Is this true?
Probably depends where you get them from, but either way a shitty new one is probably better than a broken OEM.
If you do go with new cables keep in mind that there are two types -- for high-top carbs and for low-tops. :twocents:
I've used the 400 cables Old Bike Barn sells they are good, never tried their 350 ones.
Dave..........do you need one of the short cables from the splitter to the carb? I have several that are very usable. I may have what you need.
Just an FYI here. I installed the Yambits R5 repop full throttle cable set just yesterday and found several problems with it. Both the throttle and both carb cables are shorter than stock, as measured side by side. Overall it's probably 2-3 inches short. Then the ferrules didn't fit into the VM tops.
I spent a long time smoothing the ferrules with 80grit, finally got them in and spinning.
As for the length, the splitter ended up way tucked up forward of the coils. That's using proper R5 routing. As of now the cable appears to work, if it give me trouble later in the build I may reroute it right of the steering neck to gain an inch or two.....
Short answer is try to get NOS.
I think I remember hearing the cable info from Eric. Like that guy knows anything about RDs :blah: ;D
I buy motion pro cable materials to make my cables, they are good quality with the lining in them. No lining= junk
Chuck
Quote from: SUPERTUNE on May 05, 2020, 11:13:10 PM
I buy motion pro cable materials to make my cables, they are good quality with the lining in them. No lining= junk
Chuck
Chuck, you make/assemble your own cables?
Would it be possible to make a set, or an upper cable+splitter for a 350A with Hi-Top carbs, using a proper 2-1 splitter?
I have removed the Autolube pump for now, and I just don't like the idea of the uneven pull on the 3-1 splitter, sort of cocking the coupler and increasing friction.
Just a follow up on my Yambits R5 cable. As I said it is overall shorter than the OEM, and the ferrules had to be massaged to get them to seat into the mikunis.
Sunday I set up the last bit, the oil pump cable. The darn cable end did not fit nicely into the little slot on the pump wheel. Again, massaging with a small fine file got it to fit.
Overall I can't recommend that cable set...
Yeah, it's a big pain on Yamaha oem cables w/oil pump, as the throttle cables are 1.5mm diameter and the oil pump cable is 1.0mm to fit the spool!
When I make cables for a 3 way, I want a Yamaha stock core cable to use for the oil pump drive materials.
Chuck