Engine speed fluctuations and uneven engine running on 2 & 4-stroke China scooters

Engine speed fluctuations and uneven engine running on 4-stroke China scooters

The insulation gasket is located between the intake manifold and the cylinder head. This gasket can often cause this problem, as it tends to leak from time to time. We can offer you an insulation gasket from our own Citomerx brand.

The insulation gasket can be installed in the following models:

Make:	Model(s):
Baotian	BT49QT-12, BT49QT-2, BT49QT-288 (2-stroke), BT49QT-7, BT49QT-9, BT50QT-11, BT50QT-11, BT50QT-9, Rocky 50, Tanco 50 (4-stroke)
Benzhou	City Star 50 (4-stroke), Form 2000 (4-stroke), Form 3000 (4-stroke), Form One (4-stroke), Retro Star (4-stroke), YY50QT, YY50QT- 26
Buffalo	Silver 50 (4-stroke), Speedy 50 (4-stroke), Tanco 50 (4-stroke), TVZ 50 (4-stroke), Warrior 50 (4-stroke), Wind 50 (4-stroke), ZX 50 (4-stroke)
E-max	110S, 120L, 90S
Eppella	GMX 50
Ering	Red Wing 50 (4-stroke), Silver Fox (4-stroke), Smart Rider 50 (4-stroke), Sprint 50 (4-stroke)
Flex Tech	Fun 50, Hurrican X1 (4-stroke), Hurrican X2 (4-stroke), Topdrive 50, Topspeed 50
Huatian	HAT 50QT- 26
Jinlun	JL50QT-5
JMSTAR	Accipiter 50 (4-stroke), Breeze 50 (4-stroke), Eagle 50 (4-stroke), Falcon 50 (4-stroke), Sunny 50 (4-stroke), Z- Bike 50 (4-stroke), Zeus 50 (4-stroke)
Jonway	Warrior 50 (2-stroke), Warrior 50 (4-stroke)
Karcher	KM 50 (4-stroke)
Kreidler	Flory 50 (4-stroke)
Kymco	Agility 50 (4-stroke), Agility City 50 (4-stroke), Agility MMC 50 (4-stroke), Agility RS 50 (4-stroke), Filly 50 (4-stroke), Like 50 (4-stroke), People S 50 (4-stroke), Sento 50 (4-stroke)
Lifan	S- Ray 50 (2-stroke), S- Ray 50 (4-stroke)
Longjia	LJ50QT-E
Milestorm	Roma 50 (4-stroke)
MKS	Ecobike 50 (4-stroke)
Motorro	Clea 50 (4-stroke), Cobi 50 (4-stroke), Desire 50 (4-stroke), Hawk 50 (4-stroke)
Qingqi	QM50QT-6
REX	Capriolo 50 (4-stroke), Off Limit 50 (4-stroke), RS 250 (4-stroke), RS 450 (4-stroke), RS 460 (4-stroke), RS 500 (4-stroke), RS 600 (4-stroke), RS 700 (4-stroke), RS 750 (4-stroke), RS 900 (4-stroke)
Ride	Flash 50 (4-stroke)
Rieju	Paseo 50 (4-stroke), Toreo 50 (4-stroke)
Seikel	Hunter 50 (4-stroke), Knight 50 (4-stroke)
Tauris	Brio 50 (4-stroke), Torero 50 (4-stroke)
Wangye	WY50QT- 30A
Xinling	XL50QT- B
ZhongYu	50QT- 5, 50QT- 7
Zjhuatian	HT50QT- 10, HT50QT- 16, HT50QT- 17, HT50QT- 25, HT50QT- 26, HT50QT- 29, HT50QT- 31, HT50QT- 33, HT50QT- 36, HT50QT- 6, HT50QT- 7A, HT50QT- 7B, HT50QT- 7C, HT50QT- 7D, HT50QT- 9A, HT50QT- 9B
Zongshen	Wind 50 (4-stroke), ZS50QT- 4