Cruise control miracle!

[MiCarl]

I've had my 89 for five years and the cruise control has never been right - it just couldn't keep speed. Bike would slow down at gust of wind or any rise in the road. Downhill kind of worked.

 

The motorcycle came with a spare pump and control module. Tested everything repeatedly and found no faults - it just wouldn't work right. Disassembled and cleaned both pumps, no difference. Of course the servo tests good and I had new vacuum hose on it. All the cables moved freely.

 

If I held the "accel" button until it lifted from my hand it was useful to take some strain off my wrist or for a brief rest so long as the throttle didn't need to move. But it would drop at least 5mph if I let go of it.

 

Went through the whole system again this past winter and if anything it got worse.

 

Today, 200 miles into a 300 mile ride, I decided I needed to give my wrist a brief rest. It didn't do the 5mph drop, it didn't slow down on even steep rises. It worked perfectly. I used it most of the last 100 miles.

 

Just so excited the damn thing works right I had to share.

[MikeWa]

Now you did it.

 

Mike

[MiCarl]

Now you did it.

 

Mike

 

I hope not. Bit worried about that though.......

[KIC]

Wish I could get mine to work. All the lights work and the switch seeems to move freely, but it doesn't even attempt to work. Hopefully someday my 89 will have a miracle !

 

Congrats !

[pmelah]

:sign yeah that::sign yeah that: my 84 does the same thing wish it would work one day soon

[saddlebum]

Try pushing the clutch handle away from the handle bars. It may be that the pivot bushing is worn and the added sloppiness does not allow the lever to move the switch that comes in contact with the clutch lever when it is releasd.

[pmelah]

Try pushing the clutch handle away from the handle bars. It may be that the pivot bushing is worn and the added sloppiness does not allow the lever to move the switch that comes in contact with the clutch lever when it is releasd.

 

thanks saddlebum i will try that but first i will check the switch and clean it as i havent really checked it all out just yet

[MiCarl]

Clutch handle was the first thing I fixed. If I recall correctly, with the worn pivot the RESUME light would come on when I tried to set it.

 

I will say this about it now that it's working properly: it really pulls on the throttle. Before yesterday I always had to give it an assist, like it wasn't strong enough to pull against the throttle return spring. Yesterday there was a time or two I needed to slow up a bit for just a second. Twisting the throttle closed required a lot of force.

 

From this I'm thinking the problem must have been in the vacuum motor(s).

[GolfVenture]

My 89 Cruise Control has never worked also since I bought it 3 years ago. All the light would go on. I'll check the Clutch lever when I get it running and out for a test. Mean while knowing what you know about the cruise control system could you maybe do a write up on a list of items to check from simpliest to the more challenging if yours acted like mine and KIC's and pmelah and that is all the lights worked but the cruise control will not response.

[Trader]

Is it possible that he cruise control can affect the idle?

 

It's a long shot but today, after using the cruise for quite awhile on the highway, when I pulled in for gas it was reving at just over 2200 again.

 

When I got off the highway and stopped using the cruise for awhile the idle was just fine at stop signs.

 

 

Fri night, Carl and I did discover that 2 of the carbs did not have the washer/rubber on the end of the idle jets....so I'll be taking care of that...but why is the high idle problem intermittent.

 

So....again....could the cruise be affecting the idle?

[Marcarl]

Is it possible that he cruise control can affect the idle?

 

It's a long shot but today, after using the cruise for quite awhile on the highway, when I pulled in for gas it was reving at just over 2200 again.

 

When I got off the highway and stopped using the cruise for awhile the idle was just fine at stop signs.

 

 

Fri night, Carl and I did discover that 2 of the carbs did not have the washer/rubber on the end of the idle jets....so I'll be taking care of that...but why is the high idle problem intermittent.

 

So....again....could the cruise be affecting the idle?

Under the left side inner faring is the CC module. Your handle bar cables run to it, and from there are 2 short cables to the carbs. Could be rusty in that module and you might have found the solution to that problem at least.

[Marcarl]

Clutch handle was the first thing I fixed. If I recall correctly, with the worn pivot the RESUME light would come on when I tried to set it.

 

I will say this about it now that it's working properly: it really pulls on the throttle. Before yesterday I always had to give it an assist, like it wasn't strong enough to pull against the throttle return spring. Yesterday there was a time or two I needed to slow up a bit for just a second. Twisting the throttle closed required a lot of force.

 

From this I'm thinking the problem must have been in the vacuum motor(s).

My thoughts are traveling to the vacuum port or lines, either one could be blocked???