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| MT250 Replacement Throttle Cable - - Throttle Wide OPEN! https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=1470 |
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| Author: | danb [ Tue Jun 05, 2007 2:24 pm ] |
| Post subject: | MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
I am stymied. I bought a replacement throttle cable for my MT250 because I want to restore using the oil pump instead of needing to mix. When I put the new one on and started the bike, it immediately went to redline and so I thumbed the kill switch. I took the new cable off to compare it with the old one (which works perfect for the throttle but has the nub cut off for the oil pump). It appears that when pulled fully out on the throttle slide end, the free cable (the pulling part) was about .4 inch shorter than the old one was. So, I proceeded to trim back the rubber and metal sheathing of the cable casing to make it at least as long as the working item. I put the new one back on, making sure that the adjustor on the top of the carb was all the way in, and fired the bike back up expecting it to idle. No such luck. It jumps to red line just as it did before mod'ing the cable. Can anyone tell me what I'm missing here? Why can't I get this thing to work right? |
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| Author: | mdlafferty [ Tue Jun 05, 2007 10:44 pm ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
Are you sure that the slide in the carb is rotated to the right position so that it can drop down to its closed position? The slide cutaway faces the rear. You might not have it in the right place and it is being held wide open. |
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| Author: | danb [ Wed Jun 06, 2007 4:47 am ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
That must be it! I was just being lazy by not taking the complete carb off the bike so I couldn't tell what position the slide needed to be in. Thanks for the help! |
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| Author: | ILYA [ Sat Jun 09, 2007 10:51 pm ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
could someone please enlighten me in regards to this oil pump deal? no mixed gas? huh? can this be done to any 2 stroke? |
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| Author: | ricortes [ Sun Jun 10, 2007 8:54 am ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
It is OK for everything but some Suzuki motorcycles. Foggy memory but they injected the oil through the main bearing on something like the RM or TM 400. From what I understand you can even modify the bearings on those to work with mix. Rick |
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| Author: | Dave [ Mon Jun 11, 2007 10:33 am ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
no,not just any two stroke.only the honda mt's had the oil injection,the same can be said about the yamaha enduro's and early yamaha mx models.suzuki ts and tm models and also some old kawasaki two strokes.most riders remove the oil injection for weight reduction,oil foaming issues if the bike is being raced on a rough tracks or oil pump failure.some suzukis and kawasakis you cannot remove the oil injection because the oil is injected into the crankshaft bearings and removing the pump and running it on premix will quickly wipe out the bearings. |
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| Author: | ILYA [ Mon Jun 11, 2007 11:14 am ] |
| Post subject: | Re: MT250 Replacement Throttle Cable - - Throttle Wide OPEN! |
interesting... |
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