Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Feb 22, 2012 8:59:48 GMT -6
hi sprocket,
I've added a 150cc bbk to the bike already and swapped out the main jet from a 108 to a 110 ive got a gates powrlink 835 belt and in the variator there's 3x 10.9g and 3x 14g rollers it gives me a decent take off speed but i feel like the engine can certainly give a little more which is why i thought about the final gearing.
i'd initially like to run at about 3/4 throttle and keep the 60mph top speed that it gives me without overstressing the engine itself
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Feb 19, 2012 5:54:57 GMT -6
Hi guys
I have just done a gearbox service on my scoot and found that the final gear set is a 13x40 set up.
what sort of gain could I see if I swapped them out for a 15x38?
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Feb 10, 2012 17:51:02 GMT -6
it's pretty good stuff. you need a bit of heat(only a bit mind) to release it at any point in the future. the split pin is a more secure option though(in my opinion anyway) good luck with whatever you decide to do and safe scooting  |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Feb 10, 2012 17:36:50 GMT -6
you could use a bit of red loctite on it, or actually drill a small hole in the axle stem and put a split pin through it, that would stop it loosening right off and prevent losing it too
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 26, 2012 19:27:40 GMT -6
Thanks for your responses Sprocket, hopefully I'll come across one somewhere out there
best wishes
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 26, 2012 19:05:38 GMT -6
just out of interest, is this new variation the sign of things to come as in regards to the GY6's? I just wish I could find the right 150cc BBK for mine.
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 26, 2012 17:58:03 GMT -6
Well, my new gaskets came today and I've put everything back on the scoot now, I'll have to try and source a 150cc cylinder kit for the GY6 variation of my engine, just before putting back together I did however measure the crankcase aperture and it's already 63mm so if I do go any bigger on the cylinder it's already bored to size. I spent the best part of the day zip tying cables and spraying WD40 into all the connections as well as greasing up various exposed parts of the scoot. I'm really pleased with the scoot in general, it's just a shame the 150cc cylinder didn't fit, luckily the shop I bought it from will give me a full refund thanks for all your comments be safe out there and happy scooting |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 25, 2012 16:07:39 GMT -6
My scoot setup is in my signature, i've got 12" wheels  |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 25, 2012 3:47:43 GMT -6
Absolutely distraught!! I got the new 150cc cylinder base and piston which stated that it was for engine models beginning with 152QMI only to find that the engine studs don't correspond with the new parts even though my engine is a 152QMI version  Does anybody know where I can get the correct 150cc cylinder base for my engine? I'm in the UK if I can get postage here Note: Hey sprocket, I managed to get the chain off, I just wasn't pulling hard enough to release it as well as turning the engine while doing it :/ |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 24, 2012 18:49:04 GMT -6
well here's a thing right? The camshaft is completely different to any previous gy6 i've worked on! It seems to be integrated into the rocker assembly. there are two bolts on the camshaft sprocket that are holding it onto the bearing assembly, i assume that i would have to remove those in order to release the cam chain so that i can pull the cylinder head off any further. i need to get my hands on a 7mm spanner to do this though as my range starts at an 8mm set upwards |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 23, 2012 15:44:07 GMT -6
i will post back once the scoot is back up and running after the new piston goes in and ive ran it for a good few miles thanks for all your responses happy scooting  |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 23, 2012 13:11:48 GMT -6
i went for the 150cc set up cos i didn't want to machine the crankcase halves and also don't want that much power i just needed a little more for headwinds and hill climbs |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 23, 2012 12:36:05 GMT -6
thanks scooterelements, it's always good to have another response on board |
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 22, 2012 17:59:24 GMT -6
Thanks for your reply lefty.
I've still got the head to an old 180cc kit I had but I really wanted to keep the original head of the 125 with the 150 kit as I think the 180 head maybe just too much for the 150cc
|
|
Clinician
Currently Offline
Posts: 18
Likes: 0
Joined: Jan 20, 2012 18:15:21 GMT -6
|
Post by mpdunhill73 on Jan 22, 2012 17:47:41 GMT -6
can I continue to use my original 125cc cylinder head with a 150cc cylinder barrel and piston?
|
|
