Liam-WRX Posted August 26, 2010 Share Posted August 26, 2010 Hi folks, I currently own a Yamaha DT125R trail bike and the carburettor keeps flooding the engine due to the float valve needle being worn. The carburettor on my bike is a Mikuni VM26SS and I would like to know if the Molkt 26mm carburettor would fit as a replacement to it? Or are there any other alternative carburettors for this bike? Cheers Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 26, 2010 Moderator Share Posted August 26, 2010 Why not fit a new float valve? http://www.motocarb.co.uk/index.php Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 26, 2010 Author Share Posted August 26, 2010 The carburettor has other problems such as heavy leaking, burst hoses, and a broken choke. The repair kit for Mikuni VM26SS is altogether around £30, however, I have found a brand new Molkt TZ28 26mm carburettor for £30 so I figured it would be easier just to buy a brand new replacement. I just need to know if the Molkt TZ28 26mm carb would fit as a direct replacement to the Mikuni VM26SS carb that is currently fitted to the bike? Thanks http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220637441457 Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 26, 2010 Moderator Share Posted August 26, 2010 The carburettor has other problems such as heavy leaking, burst hoses, and a broken choke. The repair kit for Mikuni VM26SS is altogether around £30, however, I have found a brand new Molkt TZ28 26mm carburettor for £30 so I figured it would be easier just to buy a brand new replacement. I just need to know if the Molkt TZ28 26mm carb would fit as a direct replacement to the Mikuni VM26SS carb that is currently fitted to the bike? Thanks http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220637441457 I would repair the VM26 myself, who's to say the jetting of any replacement is going to be spot on? (I doubt it) money is obviously an issue so the cheapest way would be the repair IMO. Link to comment Share on other sites More sharing options...
Moderator mervin Posted August 26, 2010 Moderator Share Posted August 26, 2010 Repair the VM26 for your £30 you will get quality parts to repair a quality carb, buying this unknown carb which will need jetting for sure could cost you loads of jets, as it will be trial and error to get the mixture right, and possibly a seized engine if you do not get it right, it will very likely need all the jets replacing which will cost you much more than the £30 outlay Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 26, 2010 Author Share Posted August 26, 2010 I've just bought the carburettor repair kit on Ebay. I'll let yous know how I get on. Cheers Link to comment Share on other sites More sharing options...
chris66 Posted August 26, 2010 Share Posted August 26, 2010 you have chosen wisely the other carb is pit bike quality, the sort you get on a £250 Chinese bike. Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 26, 2010 Author Share Posted August 26, 2010 you have chosen wisely the other carb is pit bike quality, the sort you get on a £250 Chinese bike. Thanks mate See if I bought a Mikuni VM22 and purchased the correct jets for the bike, would it be suitable for my bike? Cheers Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 26, 2010 Moderator Share Posted August 26, 2010 Thanks mate See if I bought a Mikuni VM22 and purchased the correct jets for the bike, would it be suitable for my bike? Cheers You would lose power with a VM22, It isnnt likely to fit your inlet rubber or manifold either, stick with what's original and you wont regret it Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 27, 2010 Author Share Posted August 27, 2010 You would lose power with a VM22, It isnnt likely to fit your inlet rubber or manifold either, stick with what's original and you wont regret it It turns out that this carburettor repair kit won't be able to fix my VM26SS because it's only meant for a VM26-606 which looks the same but has different gaskets and pilot jets. So now I have a dilemma. If I bought a Mikuni VM24, and bought the correct jets, would it work? If any of you guys have a DT125R, which carburettor is it running on? Thanks Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 27, 2010 Moderator Share Posted August 27, 2010 It turns out that this carburettor repair kit won't be able to fix my VM26SS because it's only meant for a VM26-606 which looks the same but has different gaskets and pilot jets. So now I have a dilemma. If I bought a Mikuni VM24, and bought the correct jets, would it work? If any of you guys have a DT125R, which carburettor is it running on? Thanks VM26SS is the correct carb, is there an id number on it? 3MB00 possibly? I suggest you ring Steve at motocarb, I have always found him very helpful...tell him what the issues are and he will sort it out for you. I'm sure he can supply a bowl gasket. Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 27, 2010 Author Share Posted August 27, 2010 VM26SS is the correct carb, is there an id number on it? 3MB00 possibly? Yes the ID number is 3MB00. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 27, 2010 Moderator Share Posted August 27, 2010 Yes the ID number is 3MB00. VM26SS 3MB00 Main Jet 210 Air Jet 0.7 Jet Needle 5J25 Clip position 4th from top Needle Jet Q-2 Throttle Cutaway 2.5 Pilot Jet 22.5 Power Jet 60 Air Screw (Turns Out) 1 and 1/2 Float Height 21mm Give Steve a ring, he's the expert Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 27, 2010 Author Share Posted August 27, 2010 VM26SS 3MB00 Main Jet 210 Air Jet 0.7 Jet Needle 5J25 Clip position 4th from top Needle Jet Q-2 Throttle Cutaway 2.5 Pilot Jet 22.5 Power Jet 60 Air Screw (Turns Out) 1 and 1/2 Float Height 21mm Give Steve a ring, he's the expert I see you've got the Haynes manual lol Link to comment Share on other sites More sharing options...
Moderator Airhead Posted August 27, 2010 Moderator Share Posted August 27, 2010 I see you've got the Haynes manual lol Yep, look out on ebay and get yourself one too. best one is the later one with the DTRE picture on the front, more chance of selling it on later. Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 27, 2010 Author Share Posted August 27, 2010 Yep, look out on ebay and get yourself one too. best one is the later one with the DTRE picture on the front, more chance of selling it on later. Yeah I've already got one. It's the one with 2002 DT125R on the front. Link to comment Share on other sites More sharing options...
Liam-WRX Posted August 27, 2010 Author Share Posted August 27, 2010 Yeah I've already got one. It's the one with 2002 DT125R on the front. My bike is only used as a field bike and I bought it last month quite cheap but it needed a bit of work. All I want to do now is get a replacement carburettor that will work on the bike and then take it down into the woods for a spin lol Link to comment Share on other sites More sharing options...
Recommended Posts