Sluggish performance under 4,000 rpm - TwoWheelForum: Motorcycle and Sportbike forums
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-09-2006, 12:37 PM Thread Starter
 
Join Date: Aug 2004
Posts: 2,394
Sluggish performance under 4,000 rpm

Runs normally over 4K, but doesn't accelerate correctly between idle and 4K. Idles fine with usual cam chain noise. I cleaned the carbs in the spring, so I decided to check the ignition timing.

The timing mark at idle is right on the "F" mark. But it stays at the "F" mark until 4K, then moves to the advance mark by 5K. I don't think this is right. I think it should move slowly, but smoothly off the "F" mark and by 2,500 or so should be halfway between the "F" mark and advance mark.

Has anyone else checked their ignition advance with a timing light? When my spark generator went out at 35K miles, the timing was at the "T" mark at idle and stayed there when reving the engine. I think it's starting to go again.
No Worries is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 08-09-2006, 06:03 PM
V-Twin Moddin
 
Gas Man's Avatar
 
Join Date: Jul 2004
Location: SE Michigan
Posts: 38,916
Yeah it sounds like its going again... but you're the top dog on this stuff.




-Chris
aka Gas Man



Was: 2002 Kaw ZX-9R
IS:


is me till the
Gas Man is offline  
post #3 of 5 (permalink) Old 08-15-2006, 08:22 PM Thread Starter
 
Join Date: Aug 2004
Posts: 2,394
Quote:
Originally Posted by No Worries
I think it's starting to go again.
Well it did go today at 2:30. I was stoped at a traffic light ready to go up Lookout Mt. when the engine stopped running. Cranked it, but wouldn't start. I pushed it to the side of the highway. Did all the switches, opened the gas cap (full), and cranked it. No start. Took off the seat, got out the tool kit, raised the tank, burned several fingers on the valve cover, and pulled out #4 spark plug. Burned more fingers, but the plug was wet. Plugged it in and layed it on the cover. Cranked, but no spark. Pulled off #3 wire and put #4 plug in it. No spark.

It's unlikely that both coils would go bad. So I put the plug and both wires back and redid all the switches again. Crank, but no start. I don't have a cell phone so I had to walk a few blocks to a Ford dealer, the only thing nearby. I took my tank bag with my frozen water with me. It was a good thing I took the tank bag because I had put in a business card of a tow truck company that specialized in towing bikes.

I picked up the card at the Cycle World show last year. I called him up at 3:30 and he was on the other side of town, but would be there within an hour. I thanked the Ford people, washed up, and walked back to the bike. Rush hour traffic so I'm watching all the cars, trucks and even Harleys ride by. At 4:00, a cop car sees me, pulls ahead of me and turns his lights on.

He gets out and I walk over to him. I'm about to talk to him, but he raises his hand and speaks into his shoulder mike. Then he nods to me and I tell him the bike broke down and I have a tow coming. He says: "Looks like you have it under control, but I have to call in your plate." He walks to the back, calls it in, then says OK and shakes my hand. Even the people watching at the light were surprised that he shook my hand.

So at 4:05, a tall Mercedes van pulls over. The guy gets out, shakes my hand, opens the back door, extends one of those wheelchair-type ramps, and runs my bike up the ramp. He has two belts on the handlebars by the time I get my jacket and helmet. He tightens the back rachet clamps and we drive toward my house. It was 13 miles and cost $70 for the first 10 miles and $2/mi after. At 4:45, I got the bike in my garage, without a scratch to the bike. Haven't decided if I will use my insurance yet. If you need a bike tow:1-877-2WheelT.
No Worries is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 08-16-2006, 06:51 AM
 
Join Date: Jul 2005
Posts: 24,016
Too bad you broke down...but glad it worked out.



marko138 is offline  
post #5 of 5 (permalink) Old 08-16-2006, 12:42 PM
V-Twin Moddin
 
Gas Man's Avatar
 
Join Date: Jul 2004
Location: SE Michigan
Posts: 38,916
Yeah braking down sucks...

Why don't you have a cell? that is just crazy!




-Chris
aka Gas Man



Was: 2002 Kaw ZX-9R
IS:


is me till the
Gas Man is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TwoWheelForum: Motorcycle and Sportbike forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome