96 V Max barely runs

R

rronsgarage

New member
Joined
Oct 13, 2005
Messages
8
Age
63
Location
Chelsea MI
1st time poster- I have a 96 600 XT and it started running like crap after my son shut it off. I made it back to the trailer but had to have the hammer down, it would not go at low speeds. It has good compression, has spark and i also installed a new coil and a diff. set of carbs, off an identical sled. It has pipes on it and has always ran great, gas runs out of the pipes when it is running in the shop does anyone have any suggestions on what it may be or what I should check. The dealer here it useless.
 
You're getting raw gas coming out of the pipes? Both pistons look good with the compression? How does it idle?

Have you looked at clutch and secondary to make sure there aren't problems there?
 
I had the same problem with no low speed power, i found that i had damaged a piston. Check your compression again warm (post your numbers) and look at the pistons thru the plug holes. Your probably running on only one cylinder at low RPM's.
If you have twin pipes, and your son was riding it slowly around 6000 rpm w/part throttle and poor or stale fuel, he was loading it in a lean spot and detonated a piston. Could have enough compression built up at higher speeds / RPM's with a damaged ring land but not enough to run at lower speeds.

Yes, check your clutches, take your belt off and see how it idles and runs. But that shouldn't cause raw fuel out the pipes.
If you changed the carbs, then it's not burning the fuel...
 
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Pop the exhaust if in dought and shoot some pics up the exhaust port, works great with a digital camera, look at the top edge and ring sounds like shes dropped a cylinder.
 
I pulled the exhaust last night and looked into the port and the pistons look great. I did a comp. test last year and can't remember exactly what it was but it was the same as my other identical v max which runs fine.I pulled the motor and am goint to investigate into the stator area, any clues as to what to look for would be very helpful and if the is a way to test the Pulser and stator parts.
 
I know the stator can be tested. I don't remember the ohms it's supposed to read though. I went through mine last year and found the source of my no spark to be a bad spark plug cap.
 
I think it was 235-275 OHMs for the stator. I can't remember the pickup coil specs. I just did one last night. I got a reading of 305 and the stator was completely smoked. Good Luck, I am doubting its the stator
 
Does any body know what exactly does the coil pulser do and is there a way to test it? I believe it tells the coils when to fire.
 
That's my understanding. It's essentially two magnets (or one magnet and a chunk of metal) when the one passes by the other, it completes a circuit, thus a signal to fire goes out.
 
rronsgarage said:
1st time poster- I have a 96 600 XT and it started running like crap after my son shut it off. I made it back to the trailer but had to have the hammer down, it would not go at low speeds. It has good compression, has spark and i also installed a new coil and a diff. set of carbs, off an identical sled. It has pipes on it and has always ran great, gas runs out of the pipes when it is running in the shop does anyone have any suggestions on what it may be or what I should check. The dealer here it useless.
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It sounds like reeds to me too, did you check them?, you stated you changed carbs,...maybe somthin fell in there and broke one!
 
If you have good spark, I doubt that it's an ignition problem. Sounds like you could be flooding out with improperly set float height. There were updates on the 94-96 Vmax 600, particularly when mounting GYT pipes. I'm sure it required different main, needle and possibly pilots as well. One thing with this series of sleds in particular, they don't like powder snow, you will freeze up some of the small openings in the bell of the carb, and they run like crap. Carbs needed to be heated, either by taking them off and inside or possibly with a hair dryer to melt the ice in those orifices.
 
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