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#1
Question about " Matsuoka MSR"
crab45
Posted on: 2013/3/11 1:32
Hey everyone, mind the "noob" undertone of this post Haha.
Interested in buying these Matsuoka carbs for my ute because a) want more power because stupid teen on L's, and b) because they are $1k cheaper roughly than Keihin FCH carbs. Q1- Is there an australian importer of them or do I need to find a person to import them for me from Japan? Q2- When they say "Manifold can be any DCOE (Weber/Dellorto/Solex) type", what links the carbs to the manifold in this case? hose clamps and tubing or are bolt patterns right enough to bolt in? Q3- How hard is it to link up i.e. from pedal to the linkages. Are there any special parts I need or do I need to change the end of the throttle cable/buy a longer one to fit the MSR's Q4- How hard are they to tune, I've heard a lot about Dellorto's being pains to tune and whatnot, will I run into the same difficulty tuning these? Q5- Ok getting super noob, what jetting do I run for it (see bottom of post for engine w/ mods its going on)? Thats about it for now, no doubt I'll need to come back incase I run into any problems. At the moment their going on a fairly stock A12 (extractors, bored out to 1270cc, elec ignition, full overhaul), but I am planning to swap an A15 into it at some stage in the future (just switch the head over and keep all my built up work). Thanks in advance, if I get a good response I'll add this into Techwiki for future reference, because I know I won't be the only one struggling to find answers :P
#2
Re: Question about " Matsuoka MSR"
D
Posted on: 2013/3/11 3:29
on youtube a Ka24de runs very well on 40mm R1 bike carbs so my advice would be to just get some cheap cbr or similar kawasaki carbs of 36 or 38mm and use a flange to make up some tubes for them, silicon hose or rubber with clamps, tune them and run good ignition, headers, compression (shave your head or buy a PJZ high comp head), lighten flywheel and enjoy. Anything biger than 36mm wont make more power just struggle down low as they flow as much as a 40-42mm weber with 36mm chokes. over 12 years ago, Ive run 38mm and were no better than my 36mm for all out power on a heavily worked A16.
http://www.youtube.com/watch?v=ptZW68fahPI http://www.youtube.com/watch?v=ybEvBd ... IlQlX9jiRs4yHopmw&index=6 http://www.youtube.com/watch?v=-Bm_kN ... IlQlX9jiRs4yHopmw&index=9
#3
Re: Question about " Matsuoka MSR"
crab45
Posted on: 2013/3/11 3:49
Thanks for the reply, I'll get onto those video's in a sec.
There seems to be a whole load of 32mm carbies on Ebay, seems like 3/4 of them are. Would this work as good or is 36-38mm the optimal sizing?
#4
Re: Question about " Matsuoka MSR"
D
Posted on: 2013/3/11 5:52
32mm should be fine I used 32s and went to 36 as the 32 needed a rebuild and parts where more exxy than the 36mm I got for $20 in excellent condish
#5
Re: Question about " Matsuoka MSR"
crab45
Posted on: 2013/3/11 7:59
Alright man thanks for the help.
Might convince dad to take me to a bike wreckers to see if I can scavenge some semi-decent condition carbs. Are there any I should particularly stay away from? EDIT: One more question, can I use dirtbike carb's awswell? I have a feeling they might be cheaper than road bike carbs.
#6
Re: Question about " Matsuoka MSR"
D
Posted on: 2013/3/11 8:11
as long as they are straight, clean and normal CV like most bike carbs
just personally stay away from complicated later carbs older ones in good nick can be found and are cheap. Most late stuff is plastic while some older carbs are all alloy with brass floaters. Excellent stuff heavier but easy to rebuild and take almost any fuel.
#7
Re: Question about " Matsuoka MSR"
clyons8
Posted on: 2013/3/11 8:15
The beauty about most bike carbs is the fact that many of them are actually a variable Venturi type. Meaning you can actually run 40s because the throat of the carburettor actually varies depending on the vacuum on the manifold side (the vacuum is dictated by your throttle position).
Keihin CVK are my favourite cheapies but the Mikuni equivalent is fine. CV means Constant Vacuum, which is the type. The K simply refers to the Kawasaki company that enlisted Mikuni to produce them. I've never heard of matsouka msr but I have heard of Mikuni HSR which are the Keihin FCR equivalent. Generally you get a piston and throttle valve type, a flat slide and throttle valve type and a straight flat slide type. The prices increase in that order of mention. You have many, many options out there, aim for carburettors similar to your engine capacity and don't assume that the more expensive, the better. I had a set of pov Kehins from the early 80's and even they were a delight on a stock motor. Scrounge eBay US and link up what you find. If fitting to DCOE/DHLA/PHH Manifold be sure to confirm carburettor bore spacing. Some/most carb banks come with an adjustable rack so you can spread or close the bank, when spreading the spacing you may need some extensions to the fuel rail but all very simple if you upload some pics. You are on the right track but there are literally over 100 options! I am a die hard carburettor fan and bike carburettors are a technology that never seemed to carry across to the automotive industry.
#8
Re: Question about " Matsuoka MSR"
crab45
Posted on: 2013/3/11 9:29
Thanks for the helpful replies everyone, I've been scrounging Ebay for the last hour and managed to find 3 listings which include 4 carbs for around $100.
Downside is that the intake sizing etc etc isn't listed so I will have to wait for the seller to back to me. I may not buy for another month or so (due to lack of $$), but getting a rough idea of what to look for will help me a lot when it comes to decisions. These are the ones I am looking at: http://www.ebay.com.au/itm/3805163515 ... _trksid=p3984.m1423.l2649 http://www.ebay.com.au/itm/2810751252 ... _trksid=p3984.m1423.l2649 http://www.ebay.com.au/itm/2810754544 ... _trksid=p3984.m1423.l2649
#9
Re: Question about " Matsuoka MSR"
clyons8
Posted on: 2013/3/11 9:33
The guy I buy from is pin wall motorcycles, I think that's his eBay username.
You need to select a set from similar engine capacity, this will help you get the jetting right.
#10
Re: Question about " Matsuoka MSR"
Posted on: 2013/3/11 9:34
I like the 1st and 3Rd sets.
IM thinking of looking for a set for going back to petrol in a couple years maybe. Need to know what to look for an l18 essentially. 40mm or over I guess. You can view topic.
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