Need help no start when warm - Triumph Forum: Triumph Rat Motorcycle Forums
Daytona Deliberations For owners and riders of Daytona 900, 955, 1000 & 1200

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 05-09-2019, 03:48 AM Thread Starter
Production 125
New Member
 
Onyx0621's Avatar
 
Join Date: May 2019
Posts: 10
Hi I am a car mechanic who bought first bike. It's a 1999 Daytona 955i it sounds great feels healthly besides a slight low end hesitation up till 4k rpm and smells rich. It runs fine no overheating or funny sounds. I rode it for 4hrs without any issues till I turned it off it wont start till 30-60min have passed n is cold again. Cranks just fine just no start. If I give it some throttle it will kinda start then I start again with lil more gas and. Boom on again. Just changed plugs and oil I got no idea what to do from here all vacuum lines have been changed but no luck on it starting when warm

No check engine light , 91 octane gas

Well I just discovered I can get it to turn on when at operating temp. By giving some throttle maybe on the 2nd or 3rd itll start , that's latest update. is there any way to test the crank sensor. Would a bad crank sensor cause it to run rich give slight power hesitation at lower rpms ?

And your right on the fuel pump/regulator. I only thought maybe it wasn't providing enough pressure to start the bike when hot but yet I can start it with more throttle. I can post a video a little later I'm planning on going for a ride

Last question. Wouldn't that crank sensor cause it to not turn on at all ? Maybe running rough ? At least that's what I would expect in a car

Do these bikes use 87 or 91 octane. ?

I have managed to get it to turn on while hot couple times in a row by giving it some throttle as I press the start button I will upload video shortly

Lol well I got a cold start video since its night right now it actually back stabbed me and turned right on after I shut it off ....soo tomorrow during the day I'll ride it and shoot a video again XD. this is the YouTube link.


https://youtu.be/OUKrdjh-auk

Finally got a chance to catch the bike slipping. Lol. So this is a video fresh after I did a 2hr ride on first try it actually started right up because it was cold out I noticed itll start on cold weather.


https://youtu.be/xwvdZFC8FA0.

And finally on the 2nd attempt to start it didn't start. This is part 2 of the other link I just posted . I attempted to turn it on by playing with throttle but no luck since I was recording. You can hear it kinda wanting to turn on as I use a bit of throttle after 2nd or 3rd start



https://youtu.be/SvcJbHb9zIU
Onyx0621 is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 05-09-2019, 03:48 AM Thread Starter
Production 125
New Member
 
Onyx0621's Avatar
 
Join Date: May 2019
Posts: 10
Hi I am a car mechanic who bought first bike. It's a 1999 Daytona 955i it sounds great feels healthly besides a slight low end hesitation up till 4k rpm and smells rich. It runs fine no overheating or funny sounds. I rode it for 4hrs without any issues till I turned it off it wont start till 30-60min have passed n is cold again. Cranks just fine just no start. If I give it some throttle it will kinda start then I start again with lil more gas and. Boom on again. Just changed plugs and oil I got no idea what to do from here all vacuum lines have been changed but no luck on it starting when warm

No check engine light , 91 octane gas

Well I just discovered I can get it to turn on when at operating temp. By giving some throttle maybe on the 2nd or 3rd itll start , that's latest update. is there any way to test the crank sensor. Would a bad crank sensor cause it to run rich give slight power hesitation at lower rpms ?

And your right on the fuel pump/regulator. I only thought maybe it wasn't providing enough pressure to start the bike when hot but yet I can start it with more throttle. I can post a video a little later I'm planning on going for a ride

Last question. Wouldn't that crank sensor cause it to not turn on at all ? Maybe running rough ? At least that's what I would expect in a car

Do these bikes use 87 or 91 octane. ?

I have managed to get it to turn on while hot couple times in a row by giving it some throttle as I press the start button I will upload video shortly

Lol well I got a cold start video since its night right now it actually back stabbed me and turned right on after I shut it off ....soo tomorrow during the day I'll ride it and shoot a video again XD. this is the YouTube link.


https://youtu.be/OUKrdjh-auk

Finally got a chance to catch the bike slipping. Lol. So this is a video fresh after I did a 2hr ride on first try it actually started right up because it was cold out I noticed itll start on cold weather.


https://youtu.be/xwvdZFC8FA0.

And finally on the 2nd attempt to start it didn't start. This is part 2 of the other link I just posted . I attempted to turn it on by playing with throttle but no luck since I was recording. You can hear it kinda wanting to turn on as I use a bit of throttle after 2nd or 3rd start



https://youtu.be/SvcJbHb9zIU
Onyx0621 is offline  
post #3 of 17 (permalink) Old 07-17-2019, 02:35 AM Thread Starter
Production 125
New Member
 
Onyx0621's Avatar
 
Join Date: May 2019
Posts: 10
Need help no start when warm

Like the title says I can turn on the bike anytime of the day itll start on first crank. I can go on a 4 hr drive just fine no stalls or misfiring. Soon as I shut it off it wont start anymore , it cranks strong, fuel pump prime is there and relays click, I replaced spark plugs , new battery 320cca agm battery .....lately I've discovered I can get it to start by applying some throttle basically bumping the throttle will sometimes get it to start , or push start will do the trick. any tips greatly appreciated. Kick stand and N switch work fine. 91 octane ran only
Onyx0621 is offline  
 
post #4 of 17 (permalink) Old 07-17-2019, 03:00 AM Thread Starter
Production 125
New Member
 
Onyx0621's Avatar
 
Join Date: May 2019
Posts: 10
Sorry forgot to include model.

Its. A 1999 daytona 955i. 28k miles
Onyx0621 is offline  
post #5 of 17 (permalink) Old 07-17-2019, 10:15 AM
Site Supporter
Supernova
Main Motorcycle: Custom 955 Speed-Tona
Super Moderator
 
DEcosse's Avatar
 
Join Date: Feb 2005
Location: Pleasanton CA
Posts: 21,022
Garage
Quote:
Originally Posted by Onyx0621 View Post
Its. A 1999 daytona 955i.
Put it in your profile please, along with your location
DEcosse is online now  
post #6 of 17 (permalink) Old 07-17-2019, 10:26 AM
Site Supporter
Supernova
Main Motorcycle: Custom 955 Speed-Tona
Super Moderator
 
DEcosse's Avatar
 
Join Date: Feb 2005
Location: Pleasanton CA
Posts: 21,022
Garage
Quote:
Originally Posted by Onyx0621 View Post
.. . 91 octane ran only
Should be running 89

Other symptoms:
Does it idle correctly when it is warmed up (1250 rpm)?
Does it smell 'rich' ?
When you replaced plugs how did they look (colour) - were they black/sooty or nice light tan colour?
Do you have an MIL light?
Does Temperature gauge read 'normal'?
Have you had this bike a long time - did this just get progressively worse, or have you not had it long enough to know historically when this began?
DEcosse is online now  
post #7 of 17 (permalink) Old 07-17-2019, 10:29 AM
Site Supporter
Supernova
Main Motorcycle: Custom 955 Speed-Tona
Super Moderator
 
DEcosse's Avatar
 
Join Date: Feb 2005
Location: Pleasanton CA
Posts: 21,022
Garage
Looked back your posting history and found your intro thread - https://www.triumphrat.net/the-welco...warm-955i.html
It would have been good if you had included a lot of that information here!
I'm going to move all those posts here - all of that from the Welcome Thread now appears as the FIRST post here
DEcosse is online now  
post #8 of 17 (permalink) Old 07-17-2019, 10:38 AM
Site Supporter
Supernova
Main Motorcycle: Custom 955 Speed-Tona
Super Moderator
 
DEcosse's Avatar
 
Join Date: Feb 2005
Location: Pleasanton CA
Posts: 21,022
Garage
Suggestions on that other thread referenced the CPS which is a very good suggestion regarding hot start issues - you should start by checking the gap - should be 1mm (0.040)
DEcosse is online now  
post #9 of 17 (permalink) Old 07-17-2019, 12:07 PM
Minitwins
Main Motorcycle: 2001 Triumph Tiger
New Member
 
Join Date: Jun 2019
Location: Boise, ID
Posts: 14
Other Motorcycle: 1997 Triumph Daytona
Extra Motorcycle: 2001 KTM LC4-E
Another issue based on your clue that it smelled rich. I played with the tunes on my 97 and found all but one of the available online tunes to be VERY rich. Previous owner could have messed with the tunes. I would look at what was installed.
AdventurePS is offline  
post #10 of 17 (permalink) Old 07-17-2019, 04:27 PM Thread Starter
Production 125
New Member
 
Onyx0621's Avatar
 
Join Date: May 2019
Posts: 10
I have had this bike for about 2 months now and problem is not getting better or worse. , I changed new battery agm 320cca. It starts with a bit of throttle sometimes. And I'm driving it in the fwy now and the check engine light comes on when I go WOT. it always smells rich does not misfire. just a bit of boom! Backfire when i let of the gass from time to time. the old injectors where pretty black.....
Onyx0621 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



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

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

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 not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are On

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