1. Small Engine Carburetor Tuning

Especially important if yours are old and hard - ALL CR CARBURETORS MUST BE USED WITH PUSH/PULL TYPE THROTTLE More about Keihin CR-S Carburetors NOTE: Racing carburetors are legal in California only for racing (off road) vehicles, and which will never be used on the highway.

Flat - CR Racing Carburetors. The carburetor no one can exceed. Flat - CR MX Racing Carburetors. Ultimate off-road performance. CR Special Racing Carburetors. Legendary carburetors for the high performance motorcycle world. PWK Carburetors. Producing power without compromise. PWM Carburetors. An improvement over the best. PJ Carburetors. The best selling carburetor. Shop online for OEM Carburetor parts that fit your 1986 Kawasaki BAYOU 185 (KLF185-A2). Sign up to get special offers, tips & more! EFI Kit Installation Manual; EFI Tuning Guide. Customer engine management system for special. Ecotrons EFI kit on a Supermileage Vehicle built by a High School. Nov 27, 2012  Figured I'd post this in case anyone else has trouble getting a good idle to 1/4 throttle with their CR's. Now I FINALLY get to do some proper carb tuning Logged.

Aaron A frame will be almost cost prohibitive for that bike. I'd suggest going to a good welding shop and have them weld in a new tube.

Accelerator Pump You'll probably need the help of a spotter on this, because things happen fast when you punch the throttle from a dead stop. If your meter goes rich right away when you punch the throttle, then it leans out gradually, you need a smaller pump nozzle to make the fuel come out slower. If the meter doesn't go rich right away, but gets richer later, you may need more fuel earlier. A bigger nozzle is in order. Try some different cams, too, but be aware that bigger is not always better. If your car still has a lean stumble with the biggest cams and the biggest nozzles, you may have to go with the 50cc 'Reo' pump diaphragm and the corresponding cam.

Power System: Activated by the power valve in a Holley, this circuit supplies extra fuel to richen up the main metering system. This is a vacuum signalled valve that simply opens and closes at a preset amount of manifold vacuum. The rating is stamped on the valve: 2.5 up to 10.5 inches of mercury manifold vacuum. The lower the number, the later the valve opens, the higher the number, the earlier the valve opens.

When I taught mechanics, it was the most difficult and time-consuming subject my students needed to learn. Many never did, and shame on me for that. What any carburetor tuner needs are proper information, and the skill to properly use it. He needs to know how the particular carburetor actually works which adjustments and parts affect idle, transition from idle, midrange throttle settings, and full throttle.

Also, I have purchased a gnarly pipe, but haven't installed it yet. How much will this help? I was also wondering if anybody made a wide-ration gear set for it or do you have any suggestions to spread out the gears. Also, it seems to blubber a bit down low, would a Boyesen Rad valve help or should I just change to after market reeds? One last question, would it be worthwhile to have it ported to smooth out the hit and if so, can you recommend a reputable service or suggest a way that I can find one?

Also, try reading a book on Holleys. I have a bunch for sale at my Amazon.com webstore, and you can get them at local bookstores and at your local public library, which are free. I also do NOT sell parts, so please don't ask to buy any carb parts or rebuild kits. Did you find this information valuable? If so, and you want to make some sort of contribution to something worthwhile, the Visiting Nurse Association and Hospice could use your donation. They came to our home and took wonderful care of my father during his final weeks of life, and deserve your support.

Small Engine Carburetor Tuning

Does it have a lighting coil or an alternator? Please explain how! THANK-YOU Gary You need to install a lighting coil. This lives behind the flywheel on the left side of the crankshaft. I'd contact a company who does specialty electrical work like winding coils for that bike. Try looking in the back of a printed issue of Cycle News. They have an ad section with countless ads from aftermarket companies.

As you see in the pictures, it has plenty of storage space in the lockable trunk and under the lockable seat. The scooter has both an electric start and a kick-start. The kick-start would come in handy if the battery died or the starter did not work for some reason. I never had to use the kick-starter. No shifting required. It is automatic.

This is due to the fact that the little passage cut in the side of the internal threads may not be big enough when you're way up in shot size, over.040, as recommended by Holley. Accelerator Pump arm adjustment: The accelerator pump arm must not be loose at idle. The.015 clearance is measured at wide open throttle (engine off!). This is to prevent damage to the pump arm and diaphragm. You may need to adjust the external spring one way or the other to get it tight at idle, yet still have the.015 clearance at WOT. Interchanging spreadbore float bowls with squarebore I mentioned to one guy my distaste for spreadbore Holleys, and how most have non-adjustable floats.

This is only used for changing characters’ names in ZSNES savestate files. Note the file NAMEEDIT.EXE in the zip. I haven’t tried it myself, so I don’t know if it’s compatible with the more recent ZSNES savestate formats or whatnot. But like I said, they’re just small details. Romancing saga 2 review. It’s really only useful if you feel like changing the names all of a sudden, or if you want to use a savestate from the original Japanese ROM or a different translation.

TTR225, boys both have TTR125s. I'm looking for basic information on servicing the bikes and also, 1 of the TTR125's shocks are low on fluid, but I can't seem to find a tool to get the plug/screw out, any ideas? Also, I haven't gone to Whisenhunt yet, because I'm not sure if my boys can handle it.no-one seems to give me a straight answer (they are 10 and 12, and all we do is trail ride and small jumps, nothing wicked) anyways, thanks in advance, Jon Jonathan Your owners manual should give most of the info you need. If not, Yamaha offers a shop manual that will go through the entire bike, from one end to the other.

Look for one called 'Ricky Stator'. I've heard good things about them and their service.

If you can get it to start on one kick, I don't think I'd complain, or take any actions to cure it. The difference in compression from the old motor to the new can cause the difference you have. Your motor is not running too cool due to the water wetter and anti-freeze. Even if it were, it wouldn't affect the starting. You can use tap water without doing any damage to your motor. It will run cooler with a 50/50 mix of coolant and water than it will with straight coolant. MX Tuner Jetting A friend of mine has a 2000 Yamaha YZ250 he would like to find out what the 2 stroke carb jetting setting would be at 600 to 1000 ft.

Leave it there. If you take it out, the secondaries are likely to flop open very quickly and give you a bog. If your vehicle is heavy, like a motorhome or 4x4, you should always use vacuum secondaries, because you need to be able to keep the secondaries closed during cruise. Since these vehicles are so heavy and often use high rpm rearend gears, your carburetor opening is often so large that many double pumpers will open the secondaries during cruise, causing horrible gas mileage. With vacuum secondaries, you can change the secondary spring to keep the secondaries closed for better gas mileage, yet still have them open during passing and hillclimbing. A tip about vacuum secondary diaphragms Holley makes about 4 different diaphragms. Even though one may look just like another, the link length can vary.

I ran into this exact symptom once with a '96 YZ 250. The thing that fixed the problem was cleaning the coil mounting tabs on the frame.

Go to www.eric-gorr.com for more info. MX Tuner Help I've Crashed And It Won't Start Up I have 1997 Honda CR250R that I recently wrecked and haven't ridden in about 3 weeks. When I wrecked it broke off part of the rear subframe and tore the silencer off.

MX Tuner I Need A Plug. I have a 2000 KX 250 with stock jetting and FMF Fatty pipe. My bike likes to wet foul plugs on a regular basis. I have drool on the tail pipe regularly as well. Once I replace the plug, it runs great all day, then next week it will foul 7 times out of 10 right off the bat. It cranks, runs a few minutes then fouls.

I'm getting really tired of drawing information out of people whose cars aren't running right or aren't running at all. I keep getting the feeling that everyone wants me to reach through the computer and fix their cars, without their having to do anything.

The best advice I can give is to get books and READ THEM! The guys who publish the carb tuning books are experts who get paid to do this kind of work. Don't be afraid to try different jets, accelerator pump cams and nozzles, and power valves in your carb. You have the instrumentation to figure out what you did wrong if it doesn't work the way you expected it to, so there is no harm done. Don't drill or file stuff unless you know exactly what you are doing, and you are prepared to buy new parts if you screw up your old ones.!! IMPORTANT NEWS FROM THE AUTHOR!!

Mikuni can supply the printed manual if you contact them or you can download it from their website ( Both the Mikuni HSR42 and HSR45 carburetors have their advantages. The 42 (top) is easier to install while the 45 can deliver more peak power. The manual explains in detail how the carburetor works, which parts do what, how to adjust or change them and how to diagnose when you need to change something.

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Remember, your eyes are using this data, and if it stops for a while, no harm is done! Sensor installed in Pinto exhaust. Sensor and welded bung: Once you have the sensor installed and wiring run up to the inside of the car, attach a digital voltmeter (you really should have one of your own, but you can sometimes borrow these from friends if you don't have one) to the sensor and a good body ground. The sensor is positive.

They provide a big boost in throttle response from low RPMs all the way to a great top end. Remember to rejet to compensate for any reeds you choose to use, or you may be disappointed or just not realize the full benefits available from the reeds. Cometic makes a gasket kit that comes with a thinner base gasket, this is known as their 'high performance' top end gasket kit. The thinner base gasket will raise the compression slightly and lower the port heights giving better low and midrange power. A nice benefit when you do your next top end. MX Tuner Thinking Of Buying - 1995 Kawasaki KX 125 I hope you can help, I'm thinking of buying the above bike but am a bit worried about a fairly loud rattle coming from the top of the engine. The rattle doesn't get quicker with engine revs, what do you think it could be and would it be expensive to put right?

Here is the Holley link: Common Questions and Answers: Question: Is the Holley spreadbore better than my Rochester Quadrajet? Answer: Not at all. The Holley spreadbore carb is a poor imitation of the Rochester Quadrajet. The Rochester Quadrajet is a modern design, and uses some very forward-thinking features such as a central float bowl with one float, vacuum-operated metering rods for power enrichment, an air-door controlled secondary, and no gaskets below fuel level.

I am 6ft 3in tall and weight about 255lbs. Please help!!! With you tipping the scales at 255, you need a pretty big bike. If you get anything smaller than a 250, you're going to have places you need more power.

If you are going to be riding trails and woods mostly, a bike designed for that will be your best bet. Whether it is a two stroke or a four stroke is entirely up to your preference. You can get a good two stroke 250 woods bike and it should have a very good useable power output. An XR 250 is a more than adequate woods bike but isn't quite as fast as a KTM 250 EXC.

The biggest improvement you can do for an XR 400 is to get the suspension fixed. The spring rates are unbalanced from the factory.

My problem is that the float bowl is out of adjustment, over-flowing fuel. However, the pin to remove the float, which is usually loosely set in, is in this case pressed in. This is very strange.

I will be mostly riding in the Ocotillo Wells area. What modifications if any would be best suited for my new (to me) scoot? I'm 5'9' 170 lbs and used to race Expert/Pro class.

MX Tuner I am looking for big bore kit for 125cc MX bikes A 2mm or a 4mm overbore have proven to be fairly reliable. Anything bigger than that can vibrate a lot and be less durable than a stock motor. Check with Eric Gorr for the rundown on what your options are. Go to www.eric-gorr.com for the lowdown. MX Tuner Shiftless XR Hi there, thanks in advance for taking the time to read this. The Problem: I just bought a 1982 (on the frame) XR250R (on the seat) or XR 250.