LOW RPM BOGG

Discussion for bikes other than the KDX
Post Reply
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

LOW RPM BOGG

Post by garycrafton »

my bike boggs down bad at take off,,no low end power once I get the rev up its great .// ?? almost dies if I don't give it enough throttle at take off ???? help !!!!
revs up just fine in neutral just not when pulling weight ??
User avatar
bufftester
Platinum Member
Platinum Member
Posts: 3455
Joined: 06:03 pm Oct 31 2012
Country: USA
Location: University Place, WA

Re: LOW RPM BOGG

Post by bufftester »

Which bike? What year? New development or always been that way? Mods/work done? Last time you changed plug, cleaned air filter, what's it currently jetted at? Need more info
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

bufftester wrote:Which bike? What year? New development or always been that way? Mods/work done? Last time you changed plug, cleaned air filter, what's it currently jetted at? Need more info
OK,,,just got it this is a kx80,,1993 I know this is a kdx forum, I have one too this is my kids bike,,,dont know much about it ,,,was locked up when I got it put a used motor in it ,,new plug and airfilter
User avatar
KDXGarage
KDXRider.net
KDXRider.net
Posts: 14047
Joined: 06:45 am Nov 01 2004
Country: United States of America
Location: AL, USA
Contact:

Re: LOW RPM BOGG

Post by KDXGarage »

Moved to other bikes forum

Have you cleaned the carb?
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

Jason wrote:Moved to other bikes forum

Have you cleaned the carb?
yes ,,even tried a new carb same thing
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

Jason wrote:Moved to other bikes forum

Have you cleaned the carb?
yes,,,no change
Yeahthebikes94
Member
Posts: 24
Joined: 02:13 am Sep 14 2017
Country: NZ

Re: LOW RPM BOGG

Post by Yeahthebikes94 »

Air leak around the carb perhaps, check the seal around the airbox boot and reed block boot.

Also double check the idle jet isn't blocked, and set the air screw to 1.5 turns out.
Get your idle set right next and hope it works :grin:
Yeahthebikes94
Member
Posts: 24
Joined: 02:13 am Sep 14 2017
Country: NZ

Re: LOW RPM BOGG

Post by Yeahthebikes94 »

Could also be a timing issue, try moving the pick up around to advance/retard the timing and see if there is any improvement.
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

Yeahthebikes94 wrote:Air leak around the carb perhaps, check the seal around the airbox boot and reed block boot.

Also double check the idle jet isn't blocked, and set the air screw to 1.5 turns out.
Get your idle set right next and hope it works :grin:
thanks ill try that ,,
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

Yeahthebikes94 wrote:Air leak around the carb perhaps, check the seal around the airbox boot and reed block boot.

Also double check the idle jet isn't blocked, and set the air screw to 1.5 turns out.
Get your idle set right next and hope it works :grin:
ok did all that ,,no change
Yeahthebikes94
Member
Posts: 24
Joined: 02:13 am Sep 14 2017
Country: NZ

Re: LOW RPM BOGG

Post by Yeahthebikes94 »

Take reeds out and look for damage, also flip them if they are worn.
Is possibly still a timing issue.
What ratio premix are you running??
garycrafton
Member
Posts: 43
Joined: 08:34 pm Jan 25 2017
Country: UNITED STATES

Re: LOW RPM BOGG

Post by garycrafton »

Yeahthebikes94 wrote:Take reeds out and look for damage, also flip them if they are worn.
Is possibly still a timing issue.
What ratio premix are you running??
using 80 to 1 amsoil,,gonna install new reeds tomorrow,,,thanks
Yeahthebikes94
Member
Posts: 24
Joined: 02:13 am Sep 14 2017
Country: NZ

Re: LOW RPM BOGG

Post by Yeahthebikes94 »

80:1 ratio?! I run all my 2 strokes at 40:1. Try the new reeds and fuel ratio change
User avatar
Julien D
KDXRider.net
KDXRider.net
Posts: 5858
Joined: 07:53 pm Nov 07 2008
Country: USA
Contact:

Re: LOW RPM BOGG

Post by Julien D »

I will second that, 80:1?!?! :blink:
Image
Post Reply