A forum for owners of Yamaha TTR250 trail and enduro bikes!

Members Login
Username 
 
Password 
    Remember Me  
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Voltage drop
Post Info TOPIC: Voltage drop
dlee22


Senior Member

Status: Offline
Posts: 407
Date:
Voltage drop
Permalink  
 

Hi all, hope you all had a good Christmas.

 

When my bike is idling my bikes at a nice 13.5 volts. (Fully charged battery on the bike), when I ride it the voltage drops to 6-9v but then goes back up to 13.5 volts when on a lower but steady throttle.

 

I'll pull the generator off and try to check it out, has anyone had a similar problem?

 

 



-- Edited by dlee22 on Sunday 27th of December 2020 07:05:57 PM

__________________

Thanks

Daniel Lee
JOHNYBOY


Super Guru

Status: Offline
Posts: 1069
Date:
Permalink  
 

you must have a faulty / green connection possible vibration is causing your problem john

__________________
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

Bad connection, faulty stator or rec/reg? 

I guess you can check the rec/reg by swapping with your gf's Raid but, as HB suggests, go through your connections first.

Are you running a voltmeter or battery monitor on your TTR Dan? See https://ttr250.activeboard.com/t57639742/sparkbright-monsoon-waterproof-battery-voltage-monitor/ for monitor info.

Brian



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
dlee22


Senior Member

Status: Offline
Posts: 407
Date:
Permalink  
 

Cheers guys!

I am running a voltmeter from a charging point. I used to have a light like you have shown but could do with re wiring that in.

I had the problem a week ago that the bike would not register above 11.8v when running. I took the connector off the reg rec and found the red wire had started corroding. I removed the connector from the block, cleaned it up and now get 13.5 at idle... I would have hoped that's the reg rec okay then.

Thanks again guys, once solved I'll let you know

__________________

Thanks

Daniel Lee
JOHNYBOY


Super Guru

Status: Offline
Posts: 1069
Date:
Permalink  
 

clever bit of kit that sparkbright brian whats the cost of that john

__________________
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

JOHNYBOY wrote:

clever bit of kit that sparkbright brian whats the cost of that john

Not cheap at £14 inc. p&p John but I love having the "ignition light" on my TTR dash wink

Order through here http://www.sparkbright.co.uk/sparkbright-monsoon-battery-voltage-monitor.php  



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
JOHNYBOY


Super Guru

Status: Offline
Posts: 1069
Date:
Permalink  
 

thanks for your reply brian has many people bought them so they are tried & tested john

__________________
JOHNYBOY


Super Guru

Status: Offline
Posts: 1069
Date:
Permalink  
 

which did you order brian it says monsoon 5 8 10 or eclipse 5 8 10 bit confusing john

__________________
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

Sorry John - I bought the Monsoon 10 which just fitted in my analogues speedo binnacle.

The Monsoon 10's LED requires a 14mm hole and the 8 requires a 12mm hole.



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Voltage drop


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard