RB30, potential auto choke issue?

[dom14]

I would love to help you out with your carby, man, but I'm up to my butt with my own carby drama, as well as other work I've been trying to finish on the car.

[Throbbinhood]

Haha thanks man, yeah I've got a trip on this weekend, so I'll deal with it for the moment. After that though, it's going to be a while until I'm headed anywhere, so should have some time to hopefully pull it apart and go from there. Does the carby rebuild kit come with replacement jets and things?

And what other things are you doing to your rig? How'd you go with the 35's?

[dom14]

No 35"s yet. I reckon i stay with 33" for the time being. I will consider 35"s when I turbo it in future.
I'm fool proofing the rig with overheat sensor alarm, oil pressure sensor, centerlocking, A/C system fix and regas, have both carbies fixed and ready, have the spare dizzy fixed and tuned for gas, bike rack project, dual battery project, have some plumbing done for a third gas tank and redo the plumbing to be able remove the auxiliary tanks when ever I need it, etc etc.
Yeah, quite a load of shite to go. Not sure I get all done, but I'm doing my best. Ah....of course, the windscreeen rubber needs replacing as well, and I dunno whether the water leaks have screwed up the metal edges of the body on the windscreen rubber area. I'll find out soon. Ah......of course, I got side steps that needs attaching as well. So, it's a crap load of work to do, only friggin 24 hours for a day.

Carby kit comes with needle, needle seat, balls, washers, all the gaskets, accelerator plunger and the rubber boot, but no jets AFAIK. I wish the kit comes with jets. But, who knows. Look around, you might be able to find a kit with jets. I had no luck so far. If there's a kit that comes with jets, I would buy another kit for sure.
May be the jets need sourcing separately. I'm not sure. I'll look into it.

I'm pretty confident, your carby only needs a good, careful clean only(low kms & not on LPG). You will need compressed gas for sure to clean it properly. Just have to make sure all the flying parts like balls, plugs, etc are removed before you do that, otherwise they fly into orbit to be never seen again. I'm loving carby repairs('cos they are desk tech jobs. ), but some blokes can't stand that kind of work. See how you go, and keep me updated. By the time I'm finished with the two carbies, I will know a lot about this RB30 Nikki carby.

Cheers
Dom

[Throbbinhood]

Well, as an interim measure (as I had to drive it long distance over the weekend and couldn't pull the whole thing apart for a clean), I had a bit of a play with the automatic choke adjustment.

Found a happy spot, where it's a fair way closed for starting, but seems to open up fully much more quickly. Long story short, she starts first time - will idle at around 1200 for 20 seconds before starting to lower. First minute of operation is a bit lumpy while the carby warms up, but that's fine as I normally leave it sit for a few minutes anyway. Very happy!

[dom14]

Well, as an interim measure (as I had to drive it long distance over the weekend and couldn't pull the whole thing apart for a clean), I had a bit of a play with the automatic choke adjustment.

Found a happy spot, where it's a fair way closed for starting, but seems to open up fully much more quickly. Long story short, she starts first time - will idle at around 1200 for 20 seconds before starting to lower. First minute of operation is a bit lumpy while the carby warms up, but that's fine as I normally leave it sit for a few minutes anyway. Very happy!

That sounds pretty good. If it stays that way, you don't need to worry about anything more.

[Throbbinhood]

That sounds pretty good. If it stays that way, you don't need to worry about anything more.

Yeah so far should do the trick. Coming into summer shouldn't matter so much. Potentially look into it when it starts getting cool again :P

[garett]

i choke with my right foot... i know its not quite the same but it works where i live .

[Patrol'n]

Hey mate, sorry to be off topic here, but I see you run 33's on your GQ, how do you find them with a Carbie RB30, does she still drive ok?

[Throbbinhood]

That's for you Dom. FWIW, I run 35's, and I find it fine. Cruising at 100 I got better economy in 4th, as she labours a bit in 5th with 35's. 110-120 and I pop it into 5th.
That said, I don't mind revving her out to 4k to get up to speed, but honestly, I'm pretty happy with it.

Dom14 will be better placed to answer re: 33's.

[Patrol'n]

That's for you Dom. FWIW, I run 35's, and I find it fine. Cruising at 100 I got better economy in 4th, as she labours a bit in 5th with 35's. 110-120 and I pop it into 5th.
That said, I don't mind revving her out to 4k to get up to speed, but honestly, I'm pretty happy with it.

Dom14 will be better placed to answer re: 33's.

Thanks for that, I have thought about 35's but I always thought they were a touch too big for my engine, although your experience with it being ok is interesting, I may get a set of 33's and wish I'd gone 35's. Do you find any serious negatives, acceleration, braking, fuel economy and crawl speed in low range?