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Fine tuning

  • Thread starter Thread starter kdupont
  • Start date Start date
K

kdupont

Guest
Now that Ive got my bike running for the most part its time to focus on the little issues with the bike.

1. Bike doesn't run well until its nice and hot, till that point ive got to pull the choke out to really get up to speed.

2. Backfires, whether it be at idle or during deacceleration. Sorry I should use the term "afterfires" as it comes from the exhaust.

3. It sounds like the left side cylinders or cylinder keeps cutting out, I can hear the exhaust on the left side and then at certain points I cant hear the exhaust and then I can hear it kick in, and as soon as I hear it I also feel it. I believe I have a bad plug wires which may be causing issues.

I need to have the carbs vaccummed synced but I have no clue how to on my bike. I also need to adjust the valves, which thanks to bikecliff I can do, but where can I find shims?

Where is a good place to get spark plug wires? I cant seem to find an OEM fit but I may not be looking good enough.
 
Critical, you need to get valves adjusted to spec or you're just
"chasin' yer tail".
 
kdupont said:
Now that Ive got my bike running for the most part its time to focus on the little issues with the bike.

1. Bike doesn't run well until its nice and hot, till that point ive got to pull the choke out to really get up to speed.

2. Backfires, whether it be at idle or during deacceleration. Sorry I should use the term "afterfires" as it comes from the exhaust.

3. It sounds like the left side cylinders or cylinder keeps cutting out, I can hear the exhaust on the left side and then at certain points I cant hear the exhaust and then I can hear it kick in, and as soon as I hear it I also feel it. I believe I have a bad plug wires which may be causing issues.

I need to have the carbs vaccummed synced but I have no clue how to on my bike. I also need to adjust the valves, which thanks to bikecliff I can do, but where can I find shims?

Where is a good place to get spark plug wires? I cant seem to find an OEM fit but I may not be looking good enough.
Click to expand...

1 and 2 indicate you are lean on the pilots. As noted, get your valves set correctly, then synch the carbs, then start chasing down the issues. Were the carbs dipped and cleaned properly?

Since no one has mentioned it, many later model Suzuki coils/wires will fit. I have a set of mid 90's GSXR600 coils and wires on my '82 1100E and they bolted right up to the mounting studs like they were meant to. Bought mine off fleabay for a very reasonable price a few years ago.


kdupont said:
What is spec for an 80 GS850?
Click to expand...

Sounds like you don't have a manual. Download one or buy a hardcopy version, either way you are going to need it to get your bike running right.


tkent02 said:
It's all easy stuff. Everything you need is here:

http://members.dslextreme.com/users/bikecliff/
Click to expand...

Very sound advice.


Mark
 
I found a kit on Z1 where you can make your own wires. Im not sure I need coils. Ill check my valve settings tomorrow and order shims as needed as well as the tool.

My main issue is Im not sure exactly what Im dealing with this bike. The title says 1979, the VIN on the title matches the VIN on the frame. But the carbs are CV style from the 80 model. VIN number is GS850103027, The engine stamp is GS850-126474. Can anyone tell me what model I have?
 
It sounds like you have an early '80 model, manufactured in late '79.
 
That's what I thought, Ive been ordering parts for an 80 gs850 G with no problems.

I initially had issues because I was going off the 79 VM carb info, so I had the wrong jets in it.
 
I believe so. It has two coils under the gas tank, two wires on one each coil.
 
Yes, you can replace the wires. Lots of pertinent info in various threads from the archives.
 
Ill do some more rrsearch. If someone had a link to that information id really appreciate it. Hell, I might even call you my best friend!
 
kdupont said:
Ill do some more rrsearch. If someone had a link to that information id really appreciate it. Hell, I might even call you my best friend!
Click to expand...

Nice try.

I'll teach you how to fish, instead of giving you a fish...

Click the "search" button above, then go to "Advanced Search".

Type "wires" in search field box.

Toggle "Titles Only".

Search

Read various threads on the subject and learn what to do.

Or just wait and someone will search for you and provide a link.
 
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