2000 SP1 Hot idling problem - Honda RC51 Forum : RC51 Motorcycle Forums
  • 1 Post By jondog9
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 10-06-2013, 08:20 AM Thread Starter
Junior Member
Join Date: Oct 2009
Location: JAPAN
Posts: 14
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
2000 SP1 Hot idling problem

Hi, I hope this is appropriate to post here.
I am having problem with idling when hot.
When its cold, it runs no problem, but after warm up, it just dies.
Runs okay but every time I stop, and RPM goes down, then it dies.

I suspected the clogged injectors and used a cleaner but did not make difference.

I have PCIII and Yamamoto 2:1 system on.

Any suggestions what to look for?


99' RS125 - 2008-
94' SRV250 - 2012 For Sale
81' CB250RSZR - 1981-
02' D-Tracker - Just bought!
82' CB450T- 2010-2011
94' CBR600F2 - 2008-2009
01' 900SS - 2011-2012
82' CB900FC - 2010-
03' RVT1000SP2 - 2009-2011
00' RVT1000SP1 - Importing
rc301990 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 10-06-2013, 01:32 PM
Senior Member
jondog9's Avatar
Join Date: Aug 2010
Location: Northern CA
Posts: 8,653
Mentioned: 15 Post(s)
Quoted: 317 Post(s)
My first guess is the fuel pressure regulator.
Has the bike been sitting for a little while?
The fpr's are a common failure.
You can test them, but occasionally they appear to pass the test and they still cause problems. Like your's.
Lift the tank, pull the small vacuum hose off the fpr, then turn your key on to prime the fuel pump. watch for leaking gas from that small nipple for the vacuum line you just pulled.
Attached Thumbnails
Click image for larger version

Name:	fuelPR1.jpg
Views:	140
Size:	89.4 KB
ID:	30330  
Trace likes this.

John, 2000 RC51 #000100

jondog9 is offline  
post #3 of 3 (permalink) Old 10-06-2013, 02:03 PM
Senior Member
screamin chief's Avatar
Join Date: Apr 2010
Posts: 1,195
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Its worth changing tge fpr regardless of the problem. Mine seemed like a electrical problem and disappeared when I changed the fpr

2000 RC51
1985 ATC 350X
2009 Silverado SS clone
Lots and lots of guns!lol
screamin chief is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Honda RC51 Forum : RC51 Motorcycle 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


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

Email Address:


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