MODIFICATION: FORK SWAP STEP 7: GAUGES

The old ATK speedo / odo / tripo is not compatible with the CRF front end. In looking at internet research about replacements for the stock gauges, I went with the very prevalent and affordable Trail Tech Vapor. Trail tech has great support, and answered all my questions regarding compatibility within 24 hours. Given their advice since I had a frankenstein combo of an ATK and CRF 250, I went with the 752-402 which is specific for the Honda XR series, but has cross compatibility with the CRF wheel speedo sensor, but has a simple copper ring for block temperature since I do not have a radiator line to tap into like the CRF specific kit would have included.

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After getting the general placement worked out on the new dashboard, I marked the aluminum, then drilled and dremeled holes for the mounting allens and a hole for the various wire connections to pass through.

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Allens tightened and wires passed.

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Uh oh, looks like the brake line routing might be a problem, but tried not to stress it and continued with the install

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Had to remove the Nissin caliper and drill a 1/8" hole to mount the speedo sensor. The magnetic bolt switched out easily with the stock CRF disc brake bolt.

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Trying to get the unit powered by the 12V ATK system proved to be somewhat vexing. The stock connector to the ATK speedo light had 2 positive and 2 negative wires, which I assumed might be related to the key positions.

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The system requires an inline 1/2 amp fuse. I opted for an inline connector from ACE and a 1/2 amp tube fuse from Radioshack.

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I ended up soldering the two red wires to the inline fuse connector then to the smaller diameter red wire into the unit. The black wire i soldered to bothe black stock ATK wires as well.

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Success! Power worked great, and the unit lit up bright blue when the key was turned to the full "on" position" and stayed off when only half turned. The brake line and speedo sender cable that was routed in-tandem were not an issue with screen visibility once seated on the bike.

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I had a slight issue with the tachometer wire when routed alongside all of the other wires through the gap between the frame and the gas tank. There was a lot of electrical interference which caused the tach reading and speed to jump all over the place. Rerouting the wire away from all of the other electrics solved that problem and the unit has been functioning perfectly with heat warning lights and shifting signals (albeit the brake line does somewhat interfere with the visualization of these on the unit).

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Part #s:

752-402 Trail Tech Vapor Stealth for XR Series

FH30B Inline Fuse Connector:

270-1018 1/2 amp Fuse:

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COSTS:

Trail Tech Vapor Stealth 752-402: $93.17 from Amazon

Inline Fuse Connector: $3.84 from ACE

1/2 amp Fuse: $3.19 for 4 pack from Radioshack