0105
2nd Class Ticket
Posts: 49 
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Post by 0105 on Jan 19, 2018 17:51:55 GMT
My 125 with DR177 kit, sip road 2, polini 180 head and drilled filter (all jetted up to suit) will only do 55mph at and absolute push, I mean flat out. I've been trying to figure out why for ages. It runs fine and gets to 50mph fine. Any ideas?
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Post by scooterg on Jan 19, 2018 22:58:08 GMT
Does it get to 50 / 55 then die, or is it the gears
As in get to 55 and it’s sceaming
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0105
2nd Class Ticket
Posts: 49
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Post by 0105 on Jan 20, 2018 17:01:02 GMT
Gets to 50/55mph then that's all it's got, will almost sit at 50 but 55 is absolute screaming limit
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Post by ironsloth on Jan 20, 2018 17:31:34 GMT
Sounds like it's geared wrong, but I can't be certain. What about a T5 4th gear on it? Are you using a lightened flywheel, as if it's too light, it would Rev the nuts off it and have no top end whatsoever. Only going off sense, as you could write everything I know about scoots on the back of a 5p piece with a 2 inch brush...... 😁
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Post by henri on Jan 21, 2018 8:43:46 GMT
as its a 125 it will have a t5 4th already , going up 1 on the clutch teeth ,from a 21 to a 22 would help . H
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0105
2nd Class Ticket
Posts: 49
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Post by 0105 on Jan 22, 2018 20:30:07 GMT
Could timing be anything to do with it? When I hit the scoot it was pinking quite badly, I found that the timing was set somewhere between the A and the IT mark (almost on the A mark) so I moved it to roughly on the IT mark and the pinking was gone but S.I.P suggest to run the DR177 kits at 19 degrees?
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