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-   -   Mikuni TM 36-2 versus Mikuni TM 36-68 (https://www.kawasakiforums.com/forum/klx-250s-71/mikuni-tm-36-2-versus-mikuni-tm-36-68-a-44968/)

Subseageorge 07-11-2017 10:26 AM

Mikuni TM 36-2 versus Mikuni TM 36-68
 
Can i use a TM 36-2 on my KLX ???

Thanks again for your help guys

George

klx678 07-11-2017 11:02 AM

I have considered that and the VM36. Either one could work, but the accelerator pump set up on the 68 makes it the best choice. The TM36 and VM36 have been used on four strokes, one of which I have had experience with being the Yamaha SR500. Works great on them. They are a bit simpler design. For me the only problem is they don't have any established jetting base line to work from I was seriously considering the 2 until I came across a used 68.

A lot the four stroke off roaders have slide carbs without accelerator pumps and work fine. Just that no one has published any info on this application that I could find.

TNC 07-11-2017 03:31 PM

George, the real advantage of using the 36-68 is the fact that it has an acceleratory pump. The real bonus isn't the extra 2mm of carb throat, so I think you'd waste your money and time putzing with the other 36.

On my 36-68 I do notice a marginal improvement from that 6000 rpm to redline WFO response, but that's compared to the stock CVK34. If you're going to swap carbs, go straight to the 36-68. My KLX has the factory KLX300 cylinder and piston with complete aftermarket exhaust. The 36-68 was well worth it IMO.

Subseageorge 07-12-2017 05:10 AM

My problem is import tax.
I have bought an IMS tank. I need to use it before i go on a 5000km tour of Indonesia. The fuel tanki have is a carb model. So i am looking at options, as my bike is an EFI.

Change to carb.
Use a remote fuel pump regulator.
Or modify the tank.

Still havn`t decided which way to go.

Another tank is $ 500 plus with import tax.
A 36 - 38 is about the same.

So im looking for a solution but dont know what to do yet,

Thanks

George

durielk 07-12-2017 02:38 PM

I would think you could pick up a CV carb a lot cheaper and jet it a lot cheaper than either. If your touring, CV carb would work fine. Slide carb is a big change in low end snap mostly.

Subseageorge 07-13-2017 10:01 AM

I have been looking round, There is a guy here offered me a 36 - 68 pumper for $600 . Crazy,, So i Think i am going to try and modify the IMS tank to take my fuel pump ,

klx678 07-13-2017 11:40 AM

I'd find out the fuel pressure/flow requirements and get an external fuel pump. They make 'em every day for cars. If one can be had that is small enough it could be clamped to the frame like a remote shock reservoir.

http://www.jegs.com/images/photos/50...555-159009.jpg

Here is a link to Jegs. Odds are you may find something like this in the tuner car market in Indonesia. Do some searching.

Subseageorge 07-13-2017 01:39 PM

Yes, I was thinking about that, But i couldn't find out what the pressure and flow rates were., I have emailed a specialist company who make after market fuel pumps but they didn't reply.

klx678 07-13-2017 02:14 PM

If you check with a Kawasaki dealership they could probably give you the OEM unit specs they would use to test one. Might even be in the KLX shop manual for the EFI bike. Or if you still can't find specs, see if you can test the pressure and output on yours. Probably want to know current draw and output in pressure, I doubt volume would be much of a concern when using an automotive pump. Every auto pump I saw on line either had the gallons/hour or pressure.

Subseageorge 08-02-2017 10:11 AM

Fuel Pressure (High Pressure Line) 294 kPa (3.0 kgf/cm², 43 psi) with engine idling
Fuel Pump:
Type Wesco pump
Discharge 11 mL (0.37 US oz.) or more for 2 seconds

TNC 08-02-2017 03:42 PM

I know nothing specifically about the KLX FI system, however, I wonder where the fuel pressure regulator is located. Most all FI systems I've messed with require a pressure regulator somewhere. In a full loop FI system on a motorcycle, I could see them being able to have the regulator in the tank while in most cases it's located on the engine or right near it. I'm just mentioning this to insure you address the regulator in case it's in the tank when you remove the factory tank.

Ooops...I see you mentioned a regulator in an earlier post, so you're well aware of the consideration. Carry on.:D

Subseageorge 08-03-2017 08:16 AM

The regulator / pump / and fuel level gauge / warning light are all in the tank in one unit.
That is the other problem i would face if i went down that route , does the ECU take signal from the level gauge, if so how do i over come that issue also ,,

TNC 08-04-2017 12:48 AM

Do you have a wiring diagram? You could trace out the route from the fuel gauge to its signal source. That said, I can't see the fuel level tank sensor having any functional impact on the operation of the FI system. If it's wired through the ECU, I'd guess that was a matter of convenience rather than a requirement for the ECU.

Subseageorge 08-04-2017 03:17 AM

Yes, It looks like you are right, the sensor is just a reserve switch not anything to do with the EFI. The pump has a positive and negative, the third is the return from the switch,

Should be able to do away with the switch and use a reserve tap.
Still trying to find a small pump and regulator.

FYI

The manual states that if the fuel filter is block you have to change the whole pump unit , Crazy. LOl

TNC 08-04-2017 10:02 PM

Yeah, it's surprising that lots of factory FI pumps and their hardware are not very user/owner friendly for service or repair...automotive or motorcycle...and often as expensive as heck.

GBAUTO 08-14-2017 03:08 PM

While it is possible to adapt a pump/regulator to work with the carb tank, making it a functional reality is the real question. Using an oe CV carb(there are plenty of used out there) would be the most economical.


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