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KingTutt
Kona, HI
USA
588 Posts |
Topic started on 01/11/2005 at 1:02:17 PM
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Installed IMS smog block-off kit. It's a little confussing at first with all the hoses but is acually quite simple and easy. Instructions with block-off kit left many unanswered questions. After much research in these forums, I proceeded as follows. The kit includes 4 vacuum nipple plugs but I only used 2. The nipple on right side of carb (same side as choke insert port) and nipple at very bottom are vent/drain ports and were left unplugged using existing vent tubing. The front (outlet or cylinder head side) of carb has 3 vacuum nipples. (California model) 2 on top pointing up and one near the bottom pointing down. I plugged the one near bottom pointing down and the right side (closest to choke insert port). I routed hose from the upper nipple closest to throttle linkage to the vacuum diaphram on left carb side behind throttle linkage. Rubber plug included in kit is for the airbox bottom. I then removed small carb vacume diaphram mounted on frame. Charcoal canister between crankcase and airbox should be left as is. (If using a Clarke or similar a/m gas tank, this breather canister will need to be mounted on the lower mount tab on frame where carb vacume diaphram was to make room for petcock) Carb vent hoses should not be changed. Route the vent hose that runs off the "Y" that used to go to vacume diaphram on frame to under the seat.
1. CaliforniaCarbFront.jpg
2. CarbRightSide.jpg
3. CarbLeft.jpg
4. CarbComplete.jpg
5. (Case breather pic removed)
6. 6Gearbox2Airbox.jpg - Charcoal canister is optional, but not nessesary!
7. 7Hose2AirboxTop.jpg |
SOLD The "Ginnie Pig" 05 XR650L. Here today, gone to Maui! Now living vicariously through my friends here in these forums.
- XR650L Smog Block-Off Carb Pics |
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KingTutt
Kona, HI
USA
588 Posts |
Posted on 03/07/2005 at 1:27:46 PM
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| Disregard pics of case breather as I found out it was incorrect. After seeing a bike set up by a Team Honda machanic, I realized the vacuum canister should be installed between airbox top and case. Se pics in link for correct placement... |
SOLD The "Ginnie Pig" 05 XR650L. Here today, gone to Maui! Now living vicariously through my friends here in these forums.
- XR650L Smog Block-Off Carb Pics |
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cracked junior
Varmintator
USA
1440 Posts |
Posted on 03/07/2005 at 6:04:30 PM
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i have one question. doesnt relate to smog pump. was gonna ask this in different forum but such a good picture of it in number 6 why is the shock spring yellow? why not something that goes with the bike?
Jeremy |
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doubleodevine
Brighton, MI
USA
569 Posts |
Posted on 03/07/2005 at 8:38:11 PM
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| that's just something that its just the way it is. many times on a car, the coilover is red, blue, yellow, or whatever else the manufacturer made it. its like why are inverted shocks brass colored when the rest of the bike is the manufacturer's color? like i said it must be something that is how it is. |
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dave_cl
Central NY
USA
1201 Posts |
Posted on 03/08/2005 at 08:47:51 AM
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There looks to ba an extra hose nipple on the carb- is that a california carb?
Dave |
'01 XR650L - keihin 158 main jet, 55 'long' pilot jet, screw out 2.5 turns, stock needle shimmed 0.035", slide holes drilled to 5/32, dynojet shorter CV spring installed, K&N filter, snorkel removed, stock exhaust, air pump removed, thermometer dipstick, MT21 90/90 front, huge mutant teraflex rear, 13-48 spkts. Central NY near Cortland
Articles: XR650L Carb Mods, DIY Dual Sport/Supermoto Helmet, XR650L Simplified Schematic for Safeties |
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KingTutt
Kona, HI
USA
588 Posts |
Posted on 03/08/2005 at 10:55:31 AM
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| Yes, California. There were 2 vac nips on the top front and 1 vac nip on the bottom front (not shown in pics) and the vac diaphram on the right side. I plugged top right and bottom, connected top left to diaphram. |
SOLD The "Ginnie Pig" 05 XR650L. Here today, gone to Maui! Now living vicariously through my friends here in these forums.
- XR650L Smog Block-Off Carb Pics |
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CrashDBad
Scottsdale, AZ
USA
22 Posts |
Posted on 04/10/2005 at 11:40:42 PM
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dave_cl and XRnTahoe, you guys rock. I just finnished up the carb mods and IMS smog kit. I have not yet had a chance to see how she runs; I've been laid up with a torn mcl after a nasty crash last month. Thanks for taking the time to post these instructions. XR, those pics saved me from utter confusion on install. I went with daves jet sizes and pulled the snorkel on the airbox. I haven't bought an air filter yet and was wondering if a foam type filter will make much of a difference. Anyy brands you guys like? Any thoughts on drilling out the stock exhaust a bit?
Rick |
05 XR650L |
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dave_cl
Central NY
USA
1201 Posts |
Posted on 04/11/2005 at 03:59:05 AM
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CDB, the foam should flow a bit better.
Before drilling the exhaust, pull nthe 2 8mm-head bolts and grind the welds to pull the baffle. Its a lot quieter than an aftermarket exhaust, but still seems loud to me.
Dave |
'01 XR650L - keihin 158 main jet, 55 'long' pilot jet, screw out 2.5 turns, stock needle shimmed 0.035", slide holes drilled to 5/32, dynojet shorter CV spring installed, K&N filter, snorkel removed, stock exhaust, air pump removed, thermometer dipstick, MT21 90/90 front, huge mutant teraflex rear, 13-48 spkts. Central NY near Cortland
Articles: XR650L Carb Mods, DIY Dual Sport/Supermoto Helmet, XR650L Simplified Schematic for Safeties |
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KingTutt
Kona, HI
USA
588 Posts |
Posted on 04/11/2005 at 2:52:36 PM
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| Rick, the 2 most popular brands are K&N and Uni. Either one would be a good choice however, allthough the Uni costs half as much as the K&N, it is very easy to over oil and is hard to get it to sit right in the airbox. |
SOLD The "Ginnie Pig" 05 XR650L. Here today, gone to Maui! Now living vicariously through my friends here in these forums.
- XR650L Smog Block-Off Carb Pics |
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Totte_S
97 NX650
Sweden
4 Posts |
Posted on 09/07/2005 at 11:43:34 AM
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Hello there. 1:st time here. I live in Sweden and have got a NX650 -91 (also known as Dominator, wich has same enginge as the xr650 L, if you didn´t know this)
I´ve tried to remove smog s**t, with help from the articles here at 4strokes, but i wont work. The bike runs really really bad, if it starts at all. Something must have been wrong. Please try to give me a hand figure it out, i´m not interested in mounting the crap back.
When I start it up, it runs bad and only at low revs, with a little throttle it might rev up to appr. 3000rpm, but then i suddenly "snaps" and dies. The "snap" sounds like an airsound, the sound of highly compressed air that very quick finds a way out. Sounds almost like an airgun. I´ve tried to adjust the mixture screw, but the engine drops dead to fast.
Where do i start looking for errors? To much air or gas? Wrong mounted hoses on carb?
The carb is Jetted with 58/155 keihin jets, snorkel removed, the rest is stock. The bike ran OK before, the rejetting was needed after the snorkel was removed. |
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Hardcharger
San Diego, CA
USA
300 Posts |
Posted on 09/07/2005 at 1:53:47 PM
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How many turns out is the pilot screw now? If you don't know start it at 2.5 out from lightly seated.
It sounds like either you've got a vacuum line capped off incorrectly on the carb, or one of the vacuum lines is cross-connected or even disconnected. I'm assuming you have the manufacturer's smog block-off instructions. If not, you might do an internet search for "IMS XR650L smog block-off" and see what turns up.
Try to use the photos in this thread as a guide. Of course without seeing photos of your current set up it'll be hard to tell you what might be wrong.
Good luck,
HC |
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Bustamove
04 XR650L
USA
19 Posts |
Posted on 09/07/2005 at 8:20:00 PM
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| OOPS??? I removed the canister behind the smog pump as well, Should I put it back?? If not, could I damage the engine?? |
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Hardcharger
San Diego, CA
USA
300 Posts |
Posted on 09/07/2005 at 9:26:22 PM
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Nah, the black canister removal is part of the complete emissions equipment purging process. Just make sure to have routed the crankcase breather hose directly into the airbox to keep the system closed or sealed, per the kit's instructions.
Keep Ridin'
HC |
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Totte_S
97 NX650
Sweden
4 Posts |
Posted on 09/08/2005 at 12:45:12 AM
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Pilot screw 2 1/4 turn out. I´ve made my own kit, got no instructions, except the one on 4strokes.
Maybe someone can give me a link to information about how the carb and the smog block works together, so I can figure out what´s wrong from that?
I´ll check out the vacuum line routing tonight. (GMT +1  ) |
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Hardcharger
San Diego, CA
USA
300 Posts |
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Totte_S
97 NX650
Sweden
4 Posts |
Posted on 09/16/2005 at 02:40:09 AM
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Thank´s for all input. I´ve solved the problem so far. It seems like the vacuum-hose on the carb wasn´t tight enough, and in combination with the fact i was running out of gas  it made the snapping air-sound. When i turned over to spare and strapped the hoses up,everything worked fine. Took a piece of metal, some tools and made my own plates för covering the holes in the cyl.
So far so good. Now having other troubles, but thats´s Off Topic in this subject. |
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XR650L Smog Block-Off Carb Pics
