oversize tank for 99'cr500af

[dubious]

I have just finnished building a first gen cr500af.
I need to get an oversize fuel tank, and was wondering which fit the 500af best? Clarke or IMS
IMS makes the largest -3.7 gallons for the 1st gen 250's, but will it fit with the 500 engine in my bike.
Moderate mods with a heat gun are fine , I had to mod the stock tank, but does the IMS carry the fuel right above the cyl. head on the 250, cause my engine is about 2-3" taller.

Any help would be greatly appreciated.
I live in Canada and I need some solid info before I make the purchase.
Thankyou!!

 

[dirt bike dave]

Not sure if it will help, but check my gallery and the 'garage' tab above for some low resolution pics of my '99 250 with a 3.2 gallon Clarke tank.

The Clarke works great for me, but there is not a whole lot of clearance between the 250 motor and the bottom of the tank. The pet*c*o*c*k is low and also sits pretty close to the left side of the 250 motor. Plug access with the Clarke is a little tricky on the 250.

IMO, I dont' think the 3.2 Clarke allows enough room to accomodate a CR500 engine, but I would be glad to take some measurements if you would like.

 

[dubious]

Thanks for the offer dave! :cool:
Some guys have been using the clarke 3.2 gallon and with some mods they fit over the 500 OK.

I have heard that some people like the clarke better than the IMS for their 250's due to construction and fit.

Unfortunatly I'm looking for something in the 4 gallon range and the 3.7 IMS is as close as it gets :bang:

Any body have a 3.7 IMS on their '97-99 250 or 500af
Please give me your advice or thoughts!! :think:

 

[dirt bike dave]

dubious,
I have seen a 3.7 IMS on a '97 CR250 and it did look like it had much of its extra capacity up high compared to the 3.2 Clarke. If I remember correctly, the IMS 3.7 was more rounded, with a taller hump shape under the fuel cap.

I've heard good and bad of both brands over the years; so hard to say which is better though Clarke is usually less expensive.

 

[Britt Boyette]

Clarke's is less expensive and because everything is made in house, you can get it within a week dirrect from Clarke. They also back it up with outstanding customer support, should you need it.

 

[john stu]

service honda says the fit and finish is better with the clarke than the ims..............

 

[jrg]

i have a ims 3.7 on my 01 cr250, and its a job to get the plug out, the extra capacity is held high on the tank, the fit is good, but if the 500 is taller, i dont see it working unless you heat it up and sink in the bottom of tank

 

[dubious]

Thanks for the input guys!