Friction Drive Obsolete With Double Right-Sided Drive

Sidewinder Jerry

Well-Known Member
Joined
Mar 14, 2011
Messages
3,271
Say, maybe you can help me. My RS is running a little rough, and has to
be really warmed up to get there. What do you suggest? I'm about
to install a new spark plug, and if that doesn't work, maybe a new
carb.
1) Do you still have the original Wal-Bro carburetor on it?

2) Do you have a tachometer/hour counter?

3) Are you using a 100% gas?

4) What's your maintenance schedule?
 

Mike St

Well-Known Member
Joined
Jun 16, 2008
Messages
728
Yes, it's the original carb. I don't like the fact that when I
slightly push on the carb, it affects the rpms, like the
rubber o ring attaching the carb has degraded. I
don't know.
 

Sidewinder Jerry

Well-Known Member
Joined
Mar 14, 2011
Messages
3,271
Yes, it's the original carb. I don't like the fact that when I
slightly push on the carb, it affects the rpms, like the
rubber o ring attaching the carb has degraded. I
don't know.
What kind of gas are you using? A 100% is best if you can get it, ethanol really sucks.
 

Mike St

Well-Known Member
Joined
Jun 16, 2008
Messages
728
Maintenance schedule? Are you kidding? I use
the gas at the local station, and I believe it contains
alcohol, a no-no.
 

Mike St

Well-Known Member
Joined
Jun 16, 2008
Messages
728
No, but I can hear how it operates. It does reach max
rpm but needs a good warm-up. My Honda GX50
runs so much smoother and it super easy to start.
 

Sidewinder Jerry

Well-Known Member
Joined
Mar 14, 2011
Messages
3,271
No, but I can hear how it operates. It does reach max
rpm but needs a good warm-up. My Honda GX50
runs so much smoother and it super easy to start.
Ears can deceive you. Here's a thread I replied to on adjusting the knock off replacement carbs.


Unlike the Wal-Bro it has 3 adjustment screws instead of 1.

First take your engine drive chain lose. With the tach in place you can then adjust the new carburetor.

With the throttle wide open adjust the high screw to max rpm and leave it there.

Then with no throttle adjust the low screw to max rpm. Next turn it (CCW) to where the rpm just drops favoring the rich side and leave it there.

Last of all adjust the idle screw to 3000 rpm.

With the hour counter I change my oil every 25 hours and clean the air filter every 10 hours of use.

I change the fuel filter once a year and the spark plug every 2 years.

Recently a Shell station in my town started selling a 100% gas. Before that I carried a second knock off carburetor because the E90 would clog up my jets every few months. Meaning I'd have to tear down the carburetor and clean the jets. I installed an in line fuel valve to make changing the carbs easier. On more than one occasion I had to change the carb while out riding. Fortunately all it takes is a number 2 Philips screwdriver to do it. The spare carb I carry with me has been pre-adjusted.

The best part is the tachometer/hour counter and carburetors are very affordable from eBay. Generally under $60 for 2 carbs and 1 tachometer/hour counter.
 
Top