taylzee
New member
I am going in circles here...I need some ideas.
As many of you know I have Bender triples on this 01 MM700. 50 pilots, 150 mains. Clutching is set up and I am running 85-8600 at shift out.
I have been at this machine all winter now after a major over haul this summer.
I have most of my issues worked out but I have 1 that remains.
Everything is good up until 3/4 to full throttle. I am having a miss, burp, fart, whatever you want to call it.
Everything checks out in the carbs and electrically. Stator is .5,.5,.4ohms.
Pick up coil is 176.
Plugs look good.
Clutches look good.
New plug caps.
It runs real smooth down low now, but when I crack it open, I have this miss.
The only thing I can think of is I am having an electrical break down under heat.
Any thoughts???
Anyone???
As many of you know I have Bender triples on this 01 MM700. 50 pilots, 150 mains. Clutching is set up and I am running 85-8600 at shift out.
I have been at this machine all winter now after a major over haul this summer.
I have most of my issues worked out but I have 1 that remains.
Everything is good up until 3/4 to full throttle. I am having a miss, burp, fart, whatever you want to call it.
Everything checks out in the carbs and electrically. Stator is .5,.5,.4ohms.
Pick up coil is 176.
Plugs look good.
Clutches look good.
New plug caps.
It runs real smooth down low now, but when I crack it open, I have this miss.
The only thing I can think of is I am having an electrical break down under heat.
Any thoughts???
Anyone???
bluemonster1
LIFE MEMBER ONLY ONCE!!!
better check out your wiring harness.May be a small bit of bare wire somewhere,enough that it is rubbing up against something..causing a short of some kind under full power.My 2cents 
a cracked reed maybe?
taylzee
New member
The reeds all look good...but aside from doing a leak down it's hard to tell.
taylzee
New member
Here's a question...
If I have a stator on it's way out.
Could it effect just one cylinder or will it be all three?
If I have a stator on it's way out.
Could it effect just one cylinder or will it be all three?
jwiedmayer
New member
Have you tried to flip the choke on just before doing it? You might be a little lean in the mid range. Maybe the needles need to be moved up a hair.
I'm going to be tearing my carbs apart this weekend. But I've got much bigger jetting in mine then the ones speced which is the same you have listed. I'll post what I have in. I do have a tempa flow though so its not apples to apples.
I'm going to be tearing my carbs apart this weekend. But I've got much bigger jetting in mine then the ones speced which is the same you have listed. I'll post what I have in. I do have a tempa flow though so its not apples to apples.
deeppowder
Member
After I put Benders on my 98 700MM I had the same problem. Mine was at 1/3-1/2 throttle, but the same thing it had spot that sounded like a miss. I raised the needles up 1/2 and it went away, pulls hard all the way to top end. Like jwiedmayer, I am running bigger than specified jetting and have a vari-flow. 152.5 mains-55 pilots-needles up 1/2 from stock-fuel screws out 1-3/4.
taylzee
New member
My needles are up 1 from stock. Maybe I have lean burp with the 150 mains? Plugs and wash look good though. I'll do some more testing tonight as it is supposed to be warmer today.
**sj**
Life Member
run ngk br plugs...do a reading ...find a flat road at the elevation you run at......must be long....run a constant 3/4 throttle for at least half a mile then carefully hitting the kill WITHOUT YET releasing the throttle til she comes to a stop....read your plugs here....if you are lean it will show...assuming it's at 1/2 to 3/4...raise the needles a full setting ..
taylzee
New member
This has been done a nd like I mentioned in earlier, the plugs look good.
It is the 3/4 to WOT that has the issue. Plugs still look good at WOT but I have the burp.
It is the 3/4 to WOT that has the issue. Plugs still look good at WOT but I have the burp.
taylzee
New member
Well I think I have solved many of my problems. I found the connector for the coil inputs was in a bad spot. As soon as I grabbed it to move it the machine came to life. This is why the problems were not specific to one cylinder. It must have been in the right position to be shorting out any given coil at any given time. Fixed it up and took her out for a good and I mean good rip and it is puling like never before. Man am I glad to have this thing solved.
Thanks to everyone for their input and ideas.
Thanks to everyone for their input and ideas.