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Post by flandro on Aug 17, 2011 15:49:34 GMT -5
I bought a 2008 Roketa MC-19-150 scooter that needs a new engine. The shop I have taken it to doesn't seem to think a regular 150cc long box engine will fit because of the 14 inch wheels and the disc brakes. Is this true? Is there a way to make them compatible? None of the shops I call seem to know that there is a disc brake model of 150cc engine. Am I dealing with idiots? Any help would be appreciated.
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Post by viriiguy on Aug 17, 2011 15:53:21 GMT -5
My mc-13-150 has disc brakes? So I would assume it would fit..
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Post by edfr on Aug 17, 2011 16:00:02 GMT -5
Your dealing with idiots and lazy. they just want plug and play work, they are really not mechanics at all. Now a real mechanic is JIM from RapidRepair.
Lefty
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Post by flandro on Aug 17, 2011 16:08:22 GMT -5
Based on the research I have done, there does seem to be special engines made for disc brake models. See my attached picture. Attachments:
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Post by flandro on Aug 17, 2011 16:19:47 GMT -5
This is a new engine I want to buy but am afraid it won't fit. You guys think it will fit? Attachments:
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Post by harrywr2 on Aug 17, 2011 16:26:04 GMT -5
A standard long case is a pretty tight fit for a 13" rim with low profile tires.
The short and long variants both have disk or drum variants.
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Post by flandro on Aug 17, 2011 16:44:32 GMT -5
A standard long case is a pretty tight fit for a 13" rim with low profile tires. The short and long variants both have disk or drum variants. So you think with my 14 inch wheels I need a disc variant? |
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Post by flandro on Aug 17, 2011 16:47:42 GMT -5
My mc-13-150 has disc brakes? So I would assume it would fit.. What size wheels do you have? |
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Post by flandro on Aug 17, 2011 16:48:21 GMT -5
Your dealing with idiots and lazy. they just want plug and play work, they are really not mechanics at all. Now a real mechanic is JIM from RapidRepair. Lefty So they should all fit? They are universal? No matter the wheel size or brake version? |
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Post by flandro on Aug 17, 2011 16:49:05 GMT -5
Sorry for the noobness everyone. I am just getting so many conflicting ideas about it from the local shops here in Salt Lake City and online forums.
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Post by jonglauser on Aug 17, 2011 17:25:10 GMT -5
I have a long case 150cc with rear disk. My disk is on the right side and has nothing to do with the case. Also dual shocks. All the brake stuff is attached to the right side support arm.
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Post by harrywr2 on Aug 17, 2011 17:36:32 GMT -5
So you think with my 14 inch wheels I need a disc variant? I have a Roketa Bali MC-13 with 4.00-12 tires which makes the total diameter 20". 12 + 4 x 2 = 20". So the radius of the wheel is 10". A 120-80/14 has a diameter of 21.55" 120mm * 80% = 96mm / 25.4 = 3.77 * 2 = 7.56" + 14" = 21.56" = radius of 10.78". It would be one snug fit as far as I can see. The actual case would be alright but the place where the muffler braket bolts to the engine would be very tight. |
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Post by Premier Scooters on Aug 17, 2011 18:16:07 GMT -5
Your scooter uses the same motor as scooters with 16" tires and a case mounted disk brake. a standard 150 longcase motor will not work without a bunch of expensive mods. The swingarm mounts are different, so you would need a different swingarm also you would need a different rear brake caliper that mounts on the swingarm and not the case. That means you would need a new wheel with the rotor on on the right side.
Have you tried roketa to get a new motor?
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Post by streetstyleskid on Aug 17, 2011 18:45:44 GMT -5
U want the qmj157 long case, same as my mc30 150
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Post by darknight73 on Aug 17, 2011 19:46:28 GMT -5
my 13 is tight , i had to let air out to get it off, and it may have been said 13's have the disc on the passenger side. that case on the end of the picture is a xtralong for a 16". would look funny on a 13"bike, kinda like those crotchrockets with a 12" extended swingarm
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Post by Premier Scooters on Aug 17, 2011 22:04:37 GMT -5
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Post by rockfish on Aug 18, 2011 10:51:15 GMT -5
this motor is for the pathfinder 150 by BMS....it has that funky 11 pole stator so this is NOT the right motor for you if you have a standard stator if your brake caliper is on the right hand side on the swing arm then any long case will do as long as the measurements match up......if not you need the engine that has the caliper mount built on to it simple as that |
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Post by flandro on Aug 18, 2011 13:29:25 GMT -5
this motor is for the pathfinder 150 by BMS....it has that funky 11 pole stator so this is NOT the right motor for you if you have a standard stator if your brake caliper is on the right hand side on the swing arm then any long case will do as long as the measurements match up......if not you need the engine that has the caliper mount built on to it simple as that This is what it looks like. Is this on the right? Do I need an engine that has the caliper mount built in? Attachments:
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Post by 13lky2 on Aug 18, 2011 14:52:44 GMT -5
That is the left, means you want the case that they generally say is for the 16" wheel scoots. Those are the only ones I have ever seen with a caliper mounted on the left to the gearbox.
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Post by DanK on Aug 18, 2011 15:03:48 GMT -5
Lets back up a bit... WHY do you think you need a new motor? What's wrong with the old one - why can't it be fixed?
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Post by Premier Scooters on Aug 18, 2011 16:16:51 GMT -5
this motor is for the pathfinder 150 by BMS....it has that funky 11 pole stator so this is NOT the right motor for you if you have a standard stator if your brake caliper is on the right hand side on the swing arm then any long case will do as long as the measurements match up......if not you need the engine that has the caliper mount built on to it simple as that I recently serviced a Pathfinder 150, it had the standard 8 coil stator in it. |
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Post by rockfish on Aug 18, 2011 17:32:44 GMT -5
not doubting you at all dude and totally respect your opinion but my neighbor had to replace his and it had the 11....I helped him with the install
maybe the year has something to do with it??
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Post by chasemon42 on Aug 19, 2011 8:03:09 GMT -5
From looking at your pictures and going to the rocketa website I think u need the motor designed for larger 16" rims. I recently installed a new engine on my Rocketa MC 30-150 and it used the regular long case- I have 13" rims, dual rear shocks and the disc is on the right hand/passenger side. I ordered my replacement from scrappy and came accross few motors designed for the 16" rims. It looks like Rocketa wants 650$. Good luck and I feel 4 yah as it is intimidating ordering a motor and not being 100% certain it will fit. I dont think the picture of the motor in box is what the bike came with.
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Post by sprocket on Aug 19, 2011 15:55:21 GMT -5
It depends... if your calliper is on the right of the scooter mounted on the swing arm a standard GY6 engine will work, if the wheel allows for the extra length of the axle...
Otherwise you need an engine with the special calliper mounts with is used on the 16" wheel scooters...
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Post by Premier Scooters on Aug 19, 2011 18:20:36 GMT -5
not doubting you at all dude and totally respect your opinion but my neighbor had to replace his and it had the 11....I helped him with the install maybe the year has something to do with it?? I did a little research and apparently pathfinders come both ways with either a 8 or 11 coil stator. If he got a motor with the wrong stator it's easy enough to swap it out with the old one. |
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Post by rockfish on Aug 19, 2011 19:52:37 GMT -5
not doubting you at all dude and totally respect your opinion but my neighbor had to replace his and it had the 11....I helped him with the install maybe the year has something to do with it?? I did a little research and apparently pathfinders come both ways with either a 8 or 11 coil stator. If he got a motor with the wrong stator it's easy enough to swap it out with the old one. very true.....a flywheel puller should get the job done |
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Post by yardog on Jan 6, 2013 21:43:36 GMT -5
I just bought a jonway 2011 yy150t-19 with 13 inch wheels with rear disc brake on right side. The engine does not run and may have to replaced. I notice this is an old thread, so I would like to know if anybody has found out the correct info on the issue as whether or not the regular gy6 long case work as replacement
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