BAD VIBRATIONS POLL!

red2003 · 04-16-2008, 10:20 AM

Does your China DS have bad engine vibrations? If it does, tell us what make and model it is and whether it is a pushrod or OHC engine. If not, tell us anyway!

red2003 · 04-16-2008, 10:21 AM

2006 Roketa RSX200E (DB07A).
Zongshen made OHC engine.

No noticable vibrations.

katoranger · 04-16-2008, 10:24 AM

06 Lifan Gy2. Had vibes, but rebolt fixed it.

Edit- I have a pushrod engine.

Edit again for Porterz. Engine rebolt was done last August at about 1000 miles. 4000 miles since. I don't do alot of off-road, but about 50 miles has been done since the rebolt.

Allen

Cal25 · 04-16-2008, 10:33 AM

07 Hi bird
No unexpected vibrations @ about 200 miles
OHC motor

PorterzCustomz · 04-16-2008, 11:10 AM

Well it's also important to know how much offroading they do and if they put new bolts in how long since they put the new bolts in have they used their bike and what is the result. It seems like the offroading irritates the mounts. Offroading with medium to high revs in particular.

red2003 · 04-16-2008, 11:17 AM

Quote:

Originally Posted by PorterzCustomz

Well it's also important to know how much offroading they do and if they put new bolts in how long since they put the new bolts in have they used their bike and what is the result. It seems like the offroading irritates the mounts. Offroading with medium to high revs in particular.

Feel free to add that info, or start another poll.

justinkr58 · 04-16-2008, 12:44 PM

hi bird (250) really 85% better than the 2005 newstar i had last year,

OHC motor
200 miles

DirtRoadKing · 04-16-2008, 01:32 PM

08 Hi-Bird/Ricardo 250, OHC 150Mi.
No more vibration than expected.
Not much off road, of coarse with only 150Mi. not much on or off.

Q · 04-16-2008, 03:05 PM

07 American Lifan GY5, 3500 miles, 50% dirt, pushrod engine with balance shaft, no bolts replaced. No unusual vibrations.

Q

SpeedSouth · 04-16-2008, 03:12 PM

08 Lifan GY-5
113 miles (183km)
No excessive vibrations

Cosmetic mods only.
Not much offroad yet, but hope to get some time in this weekend.

Edit: Pushrod - counterbalanced

fatboy250 · 04-16-2008, 03:27 PM

Roketa DB-07A - OHC - NO annoying vibes. Could even be described as smooth.

Roketa DB-07B - Push Rod - with 49 tooth sprocket - cruising at 50-60mph very similar to OHC (No annoying vibes, could even be described as smooth), but between 35-45mph could be considered annoying vibration that is felt in the butt and feet. Weighted bar ends take away any from the handlebars.

msRandi · 04-16-2008, 03:50 PM

had 2 vivas and 4 motors in the 1 year we had them, most vibs were a bad trans on the ohc motor the 3 ohv motor were smoth.

kczukiman · 04-16-2008, 04:00 PM

Nothing unexpected for a one lunger.No off road as of yet.Only have 75 miles on it (crappy weather).

QH 250-GY HI-BIRD
OHC

04-16-2008, 05:06 PM

2007 AL g20-5 . counterbalanced motor (lol), not bad vibes for about 500 or so kilos then they started. tightening back motor bolts helped briefly. vibes are back. did total engine re bolt with grade 8's and still vibes. could be worse I suppose. Its bearable but annoying. if i paid 4000 it'd be VERY FREAK IN ANNOYED. but I've just learned to accept them. maybe some fancy gel handlebar grips would help.

oh...i basically do no offloading unless you consider the occasional crappy country road.

04-16-2008, 10:20 AM	#1
red2003 Join Date: Jan 2007 Location: Northern Vermont, USA Posts: 1,240	BAD VIBRATIONS POLL! Does your China DS have bad engine vibrations? If it does, tell us what make and model it is and whether it is a pushrod or OHC engine. If not, tell us anyway! __________________ First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP!
	0

04-16-2008, 10:21 AM	#2
red2003 Join Date: Jan 2007 Location: Northern Vermont, USA Posts: 1,240	2006 Roketa RSX200E (DB07A). Zongshen made OHC engine. No noticable vibrations. __________________ First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP!
	0

04-16-2008, 10:24 AM	#3
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	06 Lifan Gy2. Had vibes, but rebolt fixed it. Edit- I have a pushrod engine. Edit again for Porterz. Engine rebolt was done last August at about 1000 miles. 4000 miles since. I don't do alot of off-road, but about 50 miles has been done since the rebolt. Allen __________________ You meet the nicest people on a Honda Clone.
	0

04-16-2008, 01:32 PM	#8
DirtRoadKing Join Date: Mar 2008 Location: Florida Posts: 146	08 Hi-Bird/Ricardo 250, OHC 150Mi. No more vibration than expected. Not much off road, of coarse with only 150Mi. not much on or off. __________________ 2001 HD Roadking 2008 Hi-Bird/Ricardo http://www.chinariders.net/gallery2/...g2_itemId=8088
	0

04-16-2008, 03:12 PM	#10
SpeedSouth Join Date: Apr 2008 Location: Atlanta, Ga Posts: 710	08 Lifan GY-5 113 miles (183km) No excessive vibrations Cosmetic mods only. Not much offroad yet, but hope to get some time in this weekend. Edit: Pushrod - counterbalanced __________________ 2008 American Lifan LF200 GY-5 (930 km) - Sold 2007 Kawasaki EX250 - Sold 2006 Kawasaki EX650R - My new ride! 2005 Kawasaki EX250 - A new project
	0

04-16-2008, 10:33 AM	#4
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	07 Hi bird No unexpected vibrations @ about 200 miles OHC motor
	0

04-16-2008, 11:10 AM	#5
PorterzCustomz Join Date: Mar 2008 Posts: 303	Well it's also important to know how much offroading they do and if they put new bolts in how long since they put the new bolts in have they used their bike and what is the result. It seems like the offroading irritates the mounts. Offroading with medium to high revs in particular.
	0

04-16-2008, 12:44 PM	#7
justinkr58 Join Date: Apr 2007 Location: mn Posts: 183	hi bird (250) really 85% better than the 2005 newstar i had last year, OHC motor 200 miles
	0

04-16-2008, 03:05 PM	#9
Q Join Date: Sep 2007 Location: Bend, Oregon Posts: 348	07 American Lifan GY5, 3500 miles, 50% dirt, pushrod engine with balance shaft, no bolts replaced. No unusual vibrations. Q
	0

04-16-2008, 03:27 PM	#11
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	Roketa DB-07A - OHC - NO annoying vibes. Could even be described as smooth. Roketa DB-07B - Push Rod - with 49 tooth sprocket - cruising at 50-60mph very similar to OHC (No annoying vibes, could even be described as smooth), but between 35-45mph could be considered annoying vibration that is felt in the butt and feet. Weighted bar ends take away any from the handlebars. __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
	0

04-16-2008, 03:50 PM	#12
msRandi Join Date: Jan 2007 Location: Douglas, AZ Posts: 220	had 2 vivas and 4 motors in the 1 year we had them, most vibs were a bad trans on the ohc motor the 3 ohv motor were smoth. __________________ Love from the Arizona High Desert
	0

04-16-2008, 04:00 PM	#13
kczukiman Join Date: Jul 2007 Location: Independence,Missouri Posts: 1,049	Nothing unexpected for a one lunger.No off road as of yet.Only have 75 miles on it (crappy weather). QH 250-GY HI-BIRD OHC
	0

04-16-2008, 05:06 PM	#14
Guest Posts: n/a	2007 AL g20-5 . counterbalanced motor (lol), not bad vibes for about 500 or so kilos then they started. tightening back motor bolts helped briefly. vibes are back. did total engine re bolt with grade 8's and still vibes. could be worse I suppose. Its bearable but annoying. if i paid 4000 it'd be VERY FREAK IN ANNOYED. but I've just learned to accept them. maybe some fancy gel handlebar grips would help. oh...i basically do no offloading unless you consider the occasional crappy country road.
	0