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M C

07 trooper 1100 - appears to be detonating/falls on face at 3k rpms

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It does sound like a sensor problem, that's affecting the fuel delivery. Possibly the cpu, but probably not. Unfortunately I have no idea about what the tps is supposed to read on the resistance.

Unless you can verify that it's supposed to top out at 2, it really sounds like it's working. Two sounds a little low for the upper limit. Since it typically starts with something like a volt, or so. Just like seven volts seems a bit high for the upper limit.  Since you plan on replacing it, we'll see what happens. 

When I'm working on a car, and this comes up. The internet has all the answers. But with these things, that kind of information is harder to find.

It's a shame that the s×s manufacturers don't use the OBD2 system. It would make these kinds of diagnostic issues much simpler. 

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7 minutes ago, Dan B said:

The Joyner Trooper T2/T4 owner's manual says that 49.8 psi fuel pressure is normal for most applications.  50 psi is close enough.

I agree with this, 50 is close enough. And if the clear filter shows consistent delivery, I think that's probably not the problem. 

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With so many things that can cause the issue with your machine, let me toss one more into the mix to see if it sticks to the wall.  A plugged or restricted cat converter can also cause similar issue.  Can you disconnect the exhaust just in front of the cat converter and run the engine up to see if it may be plugged.

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16 minutes ago, Dan B said:

With so many things that can cause the issue with your machine, let me toss one more into the mix to see if it sticks to the wall.  A plugged or restricted cat converter can also cause similar issue.  Can you disconnect the exhaust just in front of the cat converter and run the engine up to see if it may be plugged.

I was just thinking about a clogged cat myself. Since the 02 sensors were dirty. 

But instead of disconnecting the exhaust, I'd try running it without the downstream 02 sensor first.  Might have enough flow to tell.  See if it revs? 

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I think I found it! Completely pulled entire fuel system again tonight and recleaned and rewired pump to a toggle for testing.. no dice. For Shits and giggles I dumped pressure at 100psi and it reved up mostly normal sounded then I heard it retard then drop timing.. while this is all happening I hear that random familiar sound of what I thought may had been detonation then a pop. A bb size hole next to my crank angle sensor appeared. Pulled crank angle sensor out abs the entire damn sensor is completely eaten away. They said it ran great until clutch job.. now I believe it lol.  So can I get away with just pulling the tranny apart from housing bolted to engine or do I have to pull the entire damn thing off the motor? I am Just assuming there is no access hole so I can get the remainder of the crank angle sensor out of there without pulling it apart? Makes sense those because my tachometer has been appearing super sluggish and sporadic.

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Great to hear it. Seems like that was mentioned a few posts back

After all the mistakes, and negligence you've discovered so far. If it were me, I wouldn't feel comfortable unless I pulled the new clutch. See what else was missed. Replace all the bearings that didn't look new. All new seals, and everything is properly torqued.

There's just too much that was missed. It's like a non mechanically inclined 15 yr. old did it on a budget. If you take it out to a rural area to ride. I'd have trust issues. 

Of course that could wait till dead winter. Giving some weeks of getting familiar with it. And a bit of fun. Not looking at it, I couldn't say about the access. But I'd suspect that you could get to it, by pulling it out part of the way. Probably be a PIA doing it that way, especially if you have large hands. But I'm sure it can be done. 

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Cps got it! Got the trash out of the transmission bell house etc. we ran 6 hours last night problem free as far as motor is concerned minus I need to increase fuel presssure back up. You can tell it is fuel starving.  That said my 5th gear started popping out a few times then it appears I have lost it all together now so here we go again. Appears to go in gear but there is nothing there it seems. Gonna check cable adjustment and if that doesn’t get it then guess I’ll have to pull the bugger out 

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Glad to hear you got it going!

Sorry to hear about the gear problem. Seems like there was a thread here a couple of weeks ago. Where one of the guys had a similar problem. Don't think it was fifth gear though. But it acted the same way. Sometimes stuff happens inside the transmission. Lose one pin and the gear slips out of position inside there. Easy enough to fix, if it were sitting on the bench already. But if you want to get technical...isn't everything like that?

Hopefully, yours is something easy, and on the outside. Like a branch wedged into the linkage. Or a missing cotter pin. Never heard back from the other guy, one way or another. So keep us posted, and take some pictures if you tear into it.

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My seals on the tranny are leaky as it is I may just have to pull the bastard out. Might run without it for now and enjoy it a little before I pull it all back down.

 

edit: the output shaft seals. Whoever did clutch job messed them up it looks like. What a damn mess.

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28 minutes ago, M C said:

My seals on the tranny are leaky as it is I may just have to pull the bastard out. Might run without it for now and enjoy it a little before I pull it all back down.

 

edit: the output shaft seals. Whoever did clutch job messed them up it looks like. What a damn mess.

I gathered from your previous posts, that there seemed to be an inexperienced mechanic involved in the clutch job. As it reminded me of my own learning curve as a teenager. Partly because of substandard tools. Partly because of lack of understanding of best practices. 

I wouldn't fully trust what's been done to this point, if you're ever planning on taking it out beyond city limits. Enjoy it as much as possible, then when time permits, a complete redo of the clutch assembly would seem to be in order. 

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