Search found 58 matches

by GeorgeSweety
Sun Sep 24, 2017 8:00 am
Forum: Technical Discussion
Topic: Cylinders 1 and 4 not running
Replies: 10
Views: 102

Re: Cylinders 1 and 4 not running

Hi Folsoml, the carbs I'm referring to are on my US import 1980 CB650C Custom which had PD50B carbs from stock but I changed them for a set of PD50A's from a UK bike as one of the PD50B's had a broken casting and getting spares in the UK is very hard. Both PD50A's and B's have got the air cut off's ...
by GeorgeSweety
Sun Sep 24, 2017 1:52 am
Forum: Technical Discussion
Topic: Cylinders 1 and 4 not running
Replies: 10
Views: 102

Re: Cylinders 1 and 4 not running

Hi Riley, it is just a process of elimination, we will get there. Ok, so you have new pilot jets, how did you clean the carbs? Did you replace all of the o-rings, gaskets, air cut off valves and accelerator diaphragm? I'm not saying that you should have, unless of course they needed replacing, I'm t...
by GeorgeSweety
Sat Sep 23, 2017 12:24 am
Forum: Technical Discussion
Topic: Cylinders 1 and 4 not running
Replies: 10
Views: 102

Re: Cylinders 1 and 4 not running

Hi Riley, this is what you need to remove and clean if you haven't already done so.
https://s20.postimg.org/m2yynqisd/sdc12800.jpg
by GeorgeSweety
Fri Sep 22, 2017 1:31 am
Forum: Technical Discussion
Topic: Mafic's Nighthawk CB650sc Starting troubles
Replies: 4
Views: 72

Re: Mafic's Nighthawk CB650sc Starting troubles

Hi Mafic, yes Folsoml is correct, a good carb cleaning is in order by the sounds of it. Make sure to remove your idle jets if they are the pressed in type or you will not solve your problem, do it right first time then hopefully you won't need to keep pulling the carbs.
by GeorgeSweety
Fri Sep 22, 2017 1:21 am
Forum: Technical Discussion
Topic: Cylinders 1 and 4 not running
Replies: 10
Views: 102

Re: Cylinders 1 and 4 not running

Hi Riley, for a cylinder to fire you need spark, fuel and compression. If you have a good spark on all plugs, compression of 130 on all cylinders and it still won't run on all four, leads me to suspect that the fuel isn't getting through. You said that you, "sprayed fuel into the engine without...
by GeorgeSweety
Thu Sep 21, 2017 10:33 am
Forum: Technical Discussion
Topic: Cylinders 1 and 4 not running
Replies: 10
Views: 102

Re: Cylinders 1 and 4 not running

Hi Riley, after you have started the bike then switched off have you pulled plugs 1 and 4 to check if they are wet with fuel? any signs that fuel is getting into the cylinder? What type of carbs are on your bike, slide or CV's. When you cleaned them did you remove the idle jets to get them properly ...
by GeorgeSweety
Thu Sep 21, 2017 10:03 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

Thanks Bater, but you are the one doing the work. Please keep us updated as everyone likes a "Happy Ending" :D
by GeorgeSweety
Thu Sep 21, 2017 9:48 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

Folsoml, can they be seperated? They have a different outer cable on them, not sure if it is for strength or something electrickery. Nowt to lose by having a go at fixing them.
by GeorgeSweety
Thu Sep 21, 2017 8:56 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

Ebay would probably be your best bet as Partzilla says they are "Obsolete" :roll:
by GeorgeSweety
Thu Sep 21, 2017 8:16 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

Well if you can't get any readings from the #1 and #4 pick up and you have done all of the other things that you said, I would assume that it is dead. Please correct me if I'm wrong but you've changed everything apart from the pick up's? to me, that would seem to be the problem and you will need a r...
by GeorgeSweety
Thu Sep 21, 2017 7:20 am
Forum: General Discussion
Topic: I’m back
Replies: 4
Views: 48

Re: I’m back

Hi Dean and welcome back. I have found a good source of info for the slide carbs should you need it, any info is better than no info to me. Good luck with your new project :)
http://www.motopsyco.com/2013/08/09/vin ... -overhaul/
by GeorgeSweety
Thu Sep 21, 2017 3:42 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

Just found this and it will explain things better than I can :roll:
viewtopic.php?t=488
by GeorgeSweety
Thu Sep 21, 2017 2:03 am
Forum: Technical Discussion
Topic: No spark on cylinders 1/4 82' CB650sc
Replies: 17
Views: 115

Re: No spark on cylinders 1/4 82' CB650sc

I know I don't have a gapping issue because of that but what else could it be? Getting nice blue spark out of the 2/3 but nothing from 1/4 Hi Bater, from your previous post it "appears" that you are assuming that your pick up gap is non adjustable, which isn't the case. The gaps are adjus...
by GeorgeSweety
Thu Sep 21, 2017 1:47 am
Forum: Technical Discussion
Topic: Antigravity Battery Question
Replies: 5
Views: 78

Re: Antigravity Battery Question

That's a nice looking bike boogerwolf :) I use the plastic handle of a screwdriver to tap the bowls, it doesn't mark the castings. Hope you get it sorted before the Winter sets in.
by GeorgeSweety
Wed Sep 20, 2017 4:35 pm
Forum: Technical Discussion
Topic: Rileykehler Cylinders 1,4 not working
Replies: 2
Views: 18

Re: 1981 Cylinders 1,4 not working

Hi Riley, can I suggest that you start a new thread just to ease any confusion between posts. Also could you let us know some history of the bike and what you have already tried. Thanks :)

Go to advanced search