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Carb help!

  • Thread starter Thread starter rusty boltz
  • Start date Start date
Success!! Took less than 10 minutes too! I ended up cutting the tip off of an extra test light I had and used that to punch the piece out. Worked like a charm and only roughed the surface of the hole slightly but I'm sure I can make up for that with the fact that I can now adjust that carb. Now I just need to order the screw and when my o-rings get here and put this thing back together. Looks like I might be riding this summer after all. This forum is an absolute necessity, I can't imagine trying to do this restoration without the info and support available here. I would have tried to find another carb because of a piece of brass smaller than a mouse turd. Thanks again Nessism for looking into that, greatly appreciated.
 
Just keep plugging away and keep posting up as you go

To answer 2 of your lesser questions

1. Very little differences between a 78 and 79 mechanically, I think only the choke actuation is different
2. Check on the BassCliff megawelcome for how to post big pictures, 10 minutes to set it up and you're good to go

BTW, how far north are you??
 
Big T, the reason I was asking about the difference between the two bikes is the carbs were different. I recently found out why: because the 78 has an 85 motor on it(or so someone scribbled on the title but it makes sense).
I will post some pics of the bikes soon. Right now I'd rather get some work done.
I'm on the North side of Chicago maybe a 10 minute walk from Wrigley Field.
I will post any and all progress, I'm hooked! In the past I've built many lifted/lowered trucks (currently working on two) or muscle cars. This is my first attempt at reviving an old bike and I love it. Plus they fit in the garage even with 2 trucks, can't beat it! Especially with gas approaching 5 bucks a gallon, I may just abandon the trucks and go 2 wheels all the way.....naw I love my trucks too.
 
still need pilot screw

still need pilot screw

Okay, I thought i had found a place selling the screw I need but it turns out it was for the cv carbs. I tried the kink on the thread pertaining to removing these screws but it was not valid and a google search turned up nothing useful. I also tried the links in the mega greeting and didnt find anyone selling the screws for the vm carbs.Maybe I'm just missing it but if anyone knows where to get these please let me know. This (at the moment) is the only thing keeping my bike off the road and would like to change that ASAP. Thanks in advance.
 
Is the 750 pilot screw the same as the 1000? My bike is a gs1000 not a 550. Sorry to make you repeat stuff but I'm on a budget right now and just want to be sure before I order anything. Thanks again.
 
no luck so far

no luck so far

I am still trying to find the pilot fuel screws. I've gone to local cycle shops with no luck. Nessism, that kit apparently wont work for the 1000 I'm told, but I have submitted a parts request to z1 enterprises, thanks for the link. Hopefully they can help me. I've looked online on e bay and other links from this site and have not found any available. The link that was posted with the thread that showed how to remove the broken screws does not work anymore either. I'm getting desperate here. I'm meeting someone I was recommended to tomorrow to see if he can help me find them. I've got my fingers crossed. Otherwise I may need to pay a ridiculous amount of money (which I cannot afford) to buy 4 junk carbs off e bay just for a little screw. yuk! But its seems its that or no ridee. In other news, everything else on the bike is coming together quite well. I am painting the tank, tail light cover, and side covers this weekend a cool color shifting blue and purple and painting the mags satin black (the original finish is oxidized or I would leave them).As always, any recommendations are always welcome! Thanks for looking. R.B.
 
Both the 750 and 1000 use VM26SS carbs according to the service manual. Very strange that they use different fuel screws. Do you have a photo of your fuel screws? Maybe take one with a ruler next to it. I'll compare to some screws I have here.
 
Nessism, you were right all along! I was getting so many opinions I just confused myself. After calling, emailing, searching and begging I was able to piece together the fact that all vm carbs on gs suzuki's use the same friggin fuel screw and the only place to get them is in the rebuild kit for the 750, just like it was posted way earlier in this thread. geeze thats what I get for over complicating it. Anyway lesson learned it was ordered today. Soon it will breathe again!
 
Got the new screw yesterday! I felt excited like a little kid in front of a christmas tree. I got the new o ring kit for the intake and the carbs about a week ago so I'm ready to get this thing together! I'll be in the garage if anybody needs me.
 
It LIVES!!!

It LIVES!!!

Alright it's been a little while since I posted about this. Sooo.... After a serious cleaning with dip and blown out with carb cleaner and air through EVERY passage, new o-rings, intake o-rings, and of course the new fuel pilot screw the carbs are on the engine and running. I rode it yesterday for the first time since I got it and wow this thing pulls hard! 10 thousand times better than it did when I got it (wouldn't rev over 3000). I'm very happy. I have a little hesitation and popping under 3000 rpms and have noticed a small ammount of fuel coming from one of the vents. I am to assume I didnt get the float levels perfect by the fuel in the vent. And the hesitation is maybe from not having the carbs in sync yet? All adjustment screws are 1.5 turns out just to get it running. I don't have a sync gauge set but will try to borrow one soon. Any advice or opinions on tuning it are definitely welcome, especially with the lower rpm hesitation. Thanks! Oh, and by the way I do not have an air filter on the engine right now (its been ordered) but I do have the box in place with the lid shut tight if that might be affecting my my off idle acceleration. I didnt think it would but I'm not sure.
 
Yep, no filter will cause it to be a bit lean.
Install the filter and my carb guru says 2 to 2.5 turns out on the mixture screws.
 
Sorry to revive my old thread but I just wanted to thank everyone that helped me again. Its been on the road for 2 weeks now and I couldn't be happier. This bike flies!! Still need to sort out some idle issues but otherwise has given me 300 miles trouble free (even when my buddies way newer bikes are breaking down ha!) I got it up to 100mph yesterday and it seemed to want to just keep pulling (I didn't have the guts and was running out of open road) man I love it. Thanks !!!! Oh and I cant post on my own thread without a question so... I have been seeing this dyna electronic conversion kit on ebay for awhile, it comes with pickup, aftermarket coils, wires and plugs. Buy it now is $300. Is it worth that? My bike is retrofitted with a newer suzuki setup and for the most part is fine but my wires are cracking from age and the plugs are about due. I would like to go ahead and upgrade everything. Is it worth 300 bucks?
 
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