Motorized Bicycle Engine Kit Forum
Register FAQ Members List Calendar Mark Forums Read


Search Titles Only

Sponsors
To be a sponsor Contact Us
Our Forums


Go Back   Motorized Bicycle Engine Kit Forum > Bicycle Motor > Motorized Bicycle Trouble Shooting

Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

spark plugs.......


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. I've been following similar threads here regarding plugs.....and several of them proclaim that the stock plug included with ...
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 10-16-2009, 03:54 PM
Salty Gator's Avatar
Motorized Bicycle Elite Member
 
Join Date: Aug 2009
Location: Florida
Posts: 327
Default spark plugs.......

I've been following similar threads here regarding plugs.....and several of them proclaim that the stock plug included with the kit is a POS......well ...so far I've not had ANY problems.....removed it several times to check condition....it's always the * brown * color that everyone says is what is good....sooooo .....what are the benefits of other plugs ?.....I realize this might be a redundant thread but I still would appreciate a comprehensive response......THANKS !

Laters,
Salty
Reply With Quote
  #2 (permalink)  
Old 10-16-2009, 04:36 PM
wes wes is offline
Motorized Bicycle Senior Member
 
Join Date: Aug 2009
Location: Tucson Az
Posts: 63
Default Re: spark plugs.......

The NGK bp6hs has a deeper protruding electrode that seems to run better in my motor than the stock. My motor seems to have a cleaner two stroke with more power than the stock, not only this but NGK is a good name brand that i have used in dirt bikes for years!!!
Reply With Quote
  #3 (permalink)  
Old 10-16-2009, 04:43 PM
Retmachinist's Avatar
Motorized Bicycle Elite Member
 
Join Date: Oct 2008
Location: Urbandale Ia
Posts: 497
Default Re: spark plugs.......

Keep a close eye on the outside electrode of the kit plugs. They seem to be very soft and easy to move. As soon as I noticed that I tossed it and went with an NGK B5HS. For a couple bucks it was well worth the peace of mind that the elctrode wasn't going to break off and knock a hole in the top of the piston.

John
Reply With Quote
  #4 (permalink)  
Old 10-16-2009, 04:51 PM
Salty Gator's Avatar
Motorized Bicycle Elite Member
 
Join Date: Aug 2009
Location: Florida
Posts: 327
Default Re: spark plugs.......

Holy .......broken metal in a chamber........you guys are scaring me damn it !


Thanks,
Salty
Reply With Quote
  #5 (permalink)  
Old 10-16-2009, 06:44 PM
Motorized Bicycle Newbie
 
Join Date: Sep 2009
Location: Eagle River, Wisc.
Posts: 16
Default Re: spark plugs.......

Have to agree with Wes, Soon as I put in a BP6HS, mine ran better even tho the color of the original was fine
Reply With Quote
  #6 (permalink)  
Old 10-16-2009, 06:45 PM
Venice Motor Bikes's Avatar
Custom Builder / Dealer
 
Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 1,434
Default Re: spark plugs.......

Most of the time, the stock plugs work fine... But it's a real crap-shoot.
When ever a bike starts running like $**t, I look at the chinese plug first!
__________________
For engine kits & bike service in Los Angeles, visit us at- www.VeniceMotorBikes.com
Reply With Quote
  #7 (permalink)  
Old 10-16-2009, 07:22 PM
Bikeguy Joe's Avatar
Godfather of Motorized Bicycles
 
Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 7,081
Default Re: spark plugs.......

I have had china plugs that shot the porcelain like a bullet, and ones that have run a thousand miles with not a problem.
__________________
If it ain't broke, and you mess with it long enough, it will be.
Reply With Quote
  #8 (permalink)  
Old 10-16-2009, 09:39 PM
Pablo's Avatar
Master Bike Builder & Forum Sponsor
 
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 2,683
Default Re: spark plugs.......

Sometimes the stock plug is fine. Most times not. My first one fouled almost instantly. Now I never use them, but one did have the floating electrode disease.
Reply With Quote
  #9 (permalink)  
Old 10-16-2009, 11:13 PM
Motorized Bicycle Elite Member
 
Join Date: Jun 2009
Location: Toronto, Ontario
Posts: 153
Default Re: spark plugs.......

i was looking on one of the parts sites that sells different plugs, and some of them have a note in the description saying something like "best used under/over a certain temperature". do they really make that much of a difference when used in conditions that they are specified for?
Reply With Quote
  #10 (permalink)  
Old 10-17-2009, 01:02 AM
bairdco's Avatar
Motorized Bicycle Elite Member
 
Join Date: Aug 2009
Location: orange county, ca
Posts: 557
Default Re: spark plugs.......

yup. colder plugs in a colder environment will make your bike sluggish and bog, and hotter plugs in a hotter environment will make your bike run lean and kill it.

by going up or down one heat range won't affect it much, unless you're going for absolute tune-ability.

it comes down to what works for your particular engine, in it's environment.

i'd start with a NGK B6HS and if it works, stick with it. if you want, get a 5 and a 7 too, and play around with them.

and my suggestion to everybody, (which is still just my opinion) is to never even install the stock plug in the first place. like Joe says, some work, some don't. you don't want the one that "don't."

a 4 dollar investment could save your bike.
Reply With Quote
Reply


Thread Tools
Display Modes

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

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



All times are GMT -5. The time now is 04:54 AM.


Sponsors
To be a sponsor Contact Us
Donations accepted!

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.1.0
Motorized Bicycle Engine Kit Forum