WTF motor running backward?

vitaly

Анархия - мать порядка!
Location
NY/NJ
What causes this? Is it normal on a 5mm lamey flattop on analog msd total loss?
A motor running backward is in a backflip mode. Turn the directional switch counterclockwise, set it to "medium dry" and push down.
 

ANT

Just ride
you know it's funny this reminded me of the old school kawasaki KX80 mx bikes. the stators were identical on both sides so people who didnt know what they were doing would put it in backwards and the bike would be in reverse cause the engine spun backwards lol. sorry i know its a little off topic.
 

Watty

Random Performance
Location
Australia
What causes this? Is it normal on a 5mm lamey flattop on analog msd total loss?

Is it normal for an engine to run backwards? Now, I'm no brain scientist or rocket surgeon, but I'm pretty sure your engine running backwards is NOT normal.

Make sure you have the ski pointing the right direction in the water, and also make sure you don't have the exhaust and the intake manifolds on the wrong side.
 

wildman326

Who else?
Location
Kansas
When I have the idle set low and the ski just barely dies and I hit the gas all of a sudden there is no forward thrust. At first I thought I had stripped the splines on my short and long shafts. Then I felt the suction of the pump the wrong way. As I stated in another post I think I at 14 degrees static advance.
 

WaveDemon

Not Dead - Notable Member
Location
Hell, Florida
Is it normal for an engine to run backwards? Now, I'm no brain scientist or rocket surgeon, but I'm pretty sure your engine running backwards is NOT normal.

Make sure you have the ski pointing the right direction in the water, and also make sure you don't have the exhaust and the intake manifolds on the wrong side.

good advice! :bigok:
 

wildman326

Who else?
Location
Kansas
Well, I'm fairly confident that the motor was assembled correctly. The flux capacitor was placed directly over the stetsor valve. But really . . .
 

SJ/XPBri

Just SJBri = no more XP
Location
Northern, NJ
Well, I'm fairly confident that the motor was assembled correctly. The flux capacitor was placed directly over the stetsor valve. But really . . .

Since, my idea seems to be crazy:
Here's the patent that Bombardier has for it (they use it in their snowmobiles)
http://www.patentstorm.us/patents/5794574-description.html

My motor would "kick backwards" when trying to start it with the timing set to high. In your case the motor might "diesel" when the motor is about to stall and you tap the gas, it kicks the motor in the reverse direction.
Bri
 

godocgo

sport
Location
s. fla
it is coming from the msd. turn your idle up a little and it won't happen.

what is happening is the motor is dying and you blip the throttle and it refires only it picks back up running backwards.
 

Marshj

DarkHorse
Location
Ann Arbor
yup. on one of the local skis I ride with analog Msd TL it runs backwards sometimes in exactly the same situation. just shut if off and restart it- godoc is right, shouldnt be a problem
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Hurrr....my motor used to do that with TL quite often. I had the idle way down, and after stabs or subs, I would get back on the throttle. Despite the motor reving okay (sounding a bit strange), it acted like the pump wasn't connected.


I never could figure out what that was - I guess that answers it.
 

wildman326

Who else?
Location
Kansas
Gonna take it to Minnesota tomorrow.

Well, for any of you still out there reading this post I've got a confession to make. I didn't read the MSD manual very well. And I must've been brain dead when I tested it with the timing light. You have to turn the flywheel clockwise when using the little red light on the MSD brain. I'm running at about 35 degrees static advance.

So . . . Guess I better knock it down a little. I'm gonna put it at 25 and see what happens.

Guess I'm not a brain surgeon (or is it scientist?) either.
 

wildman326

Who else?
Location
Kansas
Hey matt, I tried to call you earlier. Got a number from Butch - Sounded like a home answering maching answered. Can you talk now?
 
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