BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum

Go Back   BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum > Technical Discussions > 150cc GY6 and Under Engine Tech

150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

Reply
 
Thread Tools
  #1  
Old 11-08-2011, 04:06 PM
rider rider is offline
Lurker
 

Join Date: Mar 2011
Location: Southern Illinois
Posts: 2
Default Bmi used engine

Has anyone bought a used yerfdog engine from BMI karts. It looks like a good deal, but "AS IS" sight unseen is a leap for me. Ebay has new engines for a little more, but no extra goodies.
Reply With Quote
  #2  
Old 11-08-2011, 05:13 PM
ckau's Avatar
ckau ckau is offline
Heavy Contributor
 

Join Date: Dec 2009
Location: central North Carolina
Posts: 915
Default

Yea I got one , haven't fired it up though, looks brand new. These were taken from karts that were originally returned because of chassis issues. Very low if any hours on the motors. fair price for the whole motor and swing arm assembly but shipping kills the deal unless you can have it shipped to a commercial address with loading dock facility's.
Reply With Quote
  #3  
Old 11-08-2011, 07:29 PM
Lyonsperf's Avatar
Lyonsperf Lyonsperf is offline
Contributor
 

Join Date: Sep 2011
Location: east haven CT
Posts: 170
Default

Even with a commercial shipping address you get screwed! They quoted $200 freight from Ohio to CT. My buddy called his freight company and they quoted $175.
I bought mine off ebay with 59.95 shipping. Came with carb, cdi, and a few other parts. Need to make exhaust and moubt it up but thats another post.
__________________
If the only tool you have is a hammer,

Then all your problems look like nails.
Reply With Quote
  #4  
Old 11-09-2011, 04:13 AM
ckau's Avatar
ckau ckau is offline
Heavy Contributor
 

Join Date: Dec 2009
Location: central North Carolina
Posts: 915
Default

Lyonsperf is right on the money . It cost $175 to get it to North carolina. BMI quoted $200. But I needed a stock howet motor, swing arm and other assorted pieces. After pricing individualy, the final cost was about the same so I went for it
Attached Images
File Type: jpg 024.jpg (90.9 KB, 14 views)
Reply With Quote
  #5  
Old 11-09-2011, 05:40 AM
Lyonsperf's Avatar
Lyonsperf Lyonsperf is offline
Contributor
 

Join Date: Sep 2011
Location: east haven CT
Posts: 170
Default

As a side note, does anyone have the dimensions for the swingarm? I'm building my own but would like to have the yerf dims as a start.
__________________
If the only tool you have is a hammer,

Then all your problems look like nails.
Reply With Quote
  #6  
Old 11-09-2011, 10:55 AM
metalstudman1's Avatar
metalstudman1 metalstudman1 is offline
Super Moderator
 

Join Date: Aug 2009
Location: Belmont,NC (elevation 534')
Posts: 2,668
Default

I also bought 2 of BMI's motors and they both ran like new. Spiderbox swingarm is 24" x 24" the front tapers from the 24" to 19" at the swing point.Don't or haven't figured out why there's a taper,when I made a new swingarm for the wife's Yerfdog I made it 24" square and it seems more stable.
Reply With Quote
  #7  
Old 11-09-2011, 02:23 PM
GX150's Avatar
GX150 GX150 is offline
Heavy Contributor
 

Join Date: Dec 2010
Posts: 645
Default

The same swing arm was used on the Spiderbox single and double seaters. Perhaps that was the reason for a narrower mount point.

Reply With Quote
  #8  
Old 11-09-2011, 09:05 PM
metalstudman1's Avatar
metalstudman1 metalstudman1 is offline
Super Moderator
 

Join Date: Aug 2009
Location: Belmont,NC (elevation 534')
Posts: 2,668
Default

You could be right about the reasoning but I don't think the single GX150 didn't come out till late in the Spiderbox era. I know that we wore out 2 swingarms at the connection from sideways travel.The extra 5" in width definitely helps with stability on our's.
Reply With Quote
  #9  
Old 11-10-2011, 12:08 AM
GX150's Avatar
GX150 GX150 is offline
Heavy Contributor
 

Join Date: Dec 2010
Posts: 645
Default

The Yerf numbering roughly went something like this:

First two numbers: Generation series
Third number: Vehicle type
Fourth number: Frame color
Fifth number: Enhancement over base

The 3200 series all was released in the same time period.

http://yerf-dog.com/main_gokart.html
Reply With Quote
  #10  
Old 11-10-2011, 07:37 AM
SYCARMS's Avatar
SYCARMS SYCARMS is offline
Supporting Vendor
 

Join Date: Sep 2009
Location: Senatobia, Mississippi
Posts: 3,375
Default

The Howlett motor is one of the best GY6 engines made. You will also be getting the electrical, axle, brakes. It is pricy to ship but you may considder making a road trip to Ohio and pick it up, depending where in Southern Illinois your located. You can always sell all the spare parts you will get with it to defray costs. The Howlett has a very well casted case. It will come with the heavy duty starter clutch. Doing machine work on the Howlett case compared to some other cases is perfered by me for the casting is solid and thicker in the right places for instance when boring out the case for a big bore. Most I've seen come with 4 pole stators so if you will be running any kind of lighting above the stock lighting I would upgrade to a 10 pole stator. If you decide to run high compression or big bore the heave starter clutch is a blessing. ckau is correct in saying these were taken from buggies returned to Sams Club with broken frames or suspension, so the engine will have very low to no hours on it.

TOM
Reply With Quote
Reply


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

Forum Jump


All times are GMT -5. The time now is 03:03 PM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.