GY-6 Newbie

[waltinbatonrouge]

Good afternoon all. I'm waltinbatonrouge. and new to your site...

I received a call from a friend who owns an independent ATV/motorcycle shop about an electrical problem with a Yerf Dog 34800 Rover circa 2003.

The last project, a couple of weeks ago, was resurrecting the electrics on a 1976 Honda CB750K6...it took me about 7 hours but now it starts, blinks, toots and lights.

Anyway on the yerfdog ...the wiring harness has overheated and melted around the starter solenoid and worked its way back through most of the engine harness.

The owner bought a new harness and asked that i install it.
I'd need to determine why it failed first.

My background ..did Avionics on F4-J's during the Vietnam war, then other electro-mechanical stuff and I can use a Fluke.

A'hem..So I started with a fair amount of research on your fine site..Thank you very much!

I connected a hot battery + directly to the starter lead with the - batt to frame ground.

The Engine cranks very slowly with a lope. The negative lead again gets very warm.

I pulled the spark plug, then the engine seems to crank at somewhere near a normal speed for a 150cc Honda motor. sounds fine

Heres my question...normally i'd look first at the starter for a king sized current draw.
i did read a bit of info about shorted starters on the GY-6 from oil intrusion trough a faulty o-ring.

However..before i start counting hours on this rare little beast, i thought i would approach the collective and see how likely it is that a stator and or CDI also went to lunch along the way.

Any thoughts tips or tricks...I can easily send pics if they would help.

most appreciatively

walt

[Big Rich]

I would say check for spark, since that would eliminate the stator / CDI, but I guess you do need a starter for that.....

Speaking of starters- mine shorted out a couple months ago. The positive wire rattled loose from the motor housing, and was barely contacting a grounded surface nearby (can't remember what at the moment. Pulling the starter and testing away from the motor is pretty easy.

Should add: I have a 3206 Spiderbox, I'm guessing they are the same motor.

[waltinbatonrouge]

thanks Big Rich..I'll think about this for a while...Just not sure whether i want to tie into this one...

This seems like it could be the job that I spend 2 hours researching, and downloading an FSM, and R&R'ing the starter, more hours rewiring it, it cranks no spark, new cdi, new stator when it doesn't charge...and on and on for a machine thats maybe worth $500 running. I'll chat with the owner today

Do any of you fine folks know any yerf dog specialists down near Baton Rouge..I'd like to at least send this customer to someone more familiar with these little cuv's

Or perhaps anyone that might be interested in buying this one???

thanks again for your help...


walt

[scjeep4.7HO]

Crank the engine by hand. See if there is a lot of drag on it making the starter work to hard and increasing it's amp draw. That could also be were the slow cranking may be coming from too. Wouldn't hurt to check the valve adjustment or compression if you can get it crank enough.

[waltinbatonrouge]

thanks SC!!