Alright can anyone give a guy in need some help on this forum or is everyone to busy talking about guns on a bike forum. Anyway...........

I tried posting this on a different topic but either no one cares or doesn't know. but here it is same post second shot 12 guage to the head.

Alright, today I tried the TM36 on my bike. I am at sea level, 331 big bore, K&N & airbox lid off, and I'm a little stumped by how its running. When I mounted it to the bike I had the mixture screw turned out 2 turns and did not touch anything else. The carb is as it came from factory (or so I think maybe its defective pos). So I started the bike up and the slide in the carb was banging around pretty loud, and the bike was idling at like 2500. so i turned the idle screw to get it back down to 1500 or whatever and the clanking noise went away. (Is the clanking of the slide normal if its idling to fast?) so I give it a little snap on the throttle again i get a slight clanking noise of the slide and i a popping noise through the carb. I only ran the bike maybe 3 minutes and the head was freakin hot, as well as where the carb mates up with the head. Its been awhile since I started the bike but don't recall it running this hot with the stock carb, or maybe I'm just tripping. Another thing, are all three lines coming off the carb vent lines or is one a vacuum line? in this case do I need to plug it?

One more thing I know has been mentioned before but don't think anyone has followed up on is about a cable supplier. As I need a longer one, maybe just about 3 or 4 inches. Does Anyone know where? or had any luck getting one made?

 

from the sounds of it, you may be running lean, the popping sound maybe pre ignition and it would explane the high revs and heat. so try adding some more fuel. how does it go threw the rev rang and does it return to idle quickly and normaly?

 

Unless you have an adaptor on the head side of the carb you may have a air leak. Install a 140 main jet leave the 37.5 pilot & put the air box lid back on. The TM33 don't like the lid off we have tried using several combinations on the carb but always go back to the lid on.
Bill
B&B Cycle Restoration

 

When I put my TM36 on my 340, out-of-the-box it ran a little rich, not lean. At this point, I don't think jetting is your problem yet. You didn't say how well the bike ran, so I'll have to stab at it.

You say you can hear the slide of the carb "banging around pretty loud". The slide in my carb does not move around at all except up and down like it's supposed to do. I doubt the slide is rattling at all, and with a Muzzy exhaust, you wouldn't hear it anyway. I'm not sure what would make that noise, unless the timing chain is loose or there's an issue with your KACR or something.

The "popping noise through the carb", is it a backfire or a miss? If the engine is backfiring through the carb, it probably out-of-time. When you installed your 331 kit, did you put the engine at top-dead-center first, using the "T" mark and not the "F" mark on the crank?

If the sound is the engine missing, and timing is not your problem, then you probably have a vacuum leak somewhere or an air leak in the intake manifold. That would explain the engine running faster and possibly hotter. Did you remove the smog crap and plug/remove the vacuum fittings and lines? All 3 lines coming off the TM36 are vent lines - don't plug any of them.

As for the throttle cable, call Jerry at FourStrokeWorks.com. He sells a cable that's about 4" longer than the stock KLX250s cable, intended for the KLX300.

 

I didn't run it too long it didn't sound pleasant but as i recall when I rev'd it up it seemed to rev fine except for the initial addition of throttle gave me that kinka pop noise. but it did take a little longer to rev back down compared to the cvk.


Bill I have the TM36-68 which I had the impression I didn't need an adapter. however i doesn't fit perfect, the boot (airbox side) doesn't mate all the way on the spigot but seemed to make enough contact. But It could be possible I have a leak. You think I should still go up on the main jet, and lid on? Its pretty cold up here right now 15-20 F. I'm at sea level.



I'm positive it was the slide in the carb clanking (that was only when it was idling at like 2500rpm). I put my hand on the carb and could feel it banging around. As far as the timing goes its spot on. Ive ran the bike with the stock cvk after the install of the 331 kit for about 20miles and it ran fine. I have removed the smog stuff, and bill gave me a block off plate.

When I ran the bike it was in a garage warmed up but I opened the door and the outside temp was pretty cold probably only 15 -20 F, so could be running lean, due to increased volume of air.

Thanks for all the replies i appreciate it. Keep it coming and thanks for the reference Mustang for the throttle cable.

 

Ask and ye shall receive.....

 

thanks deej. can you make them post again

 

Deej, I got your message...mission accomplished.

 

that would explane it, have you tryed to run the bike in the warmth of ur garage, or would you just gas ur self. perhaps it is leaking air after the carby causing the engine to run lean and the cold air was just too much.

 

POST ***** in the making I'm sure there are some here that will have tears of joy when they read this......